Preston paused in front of the door, summoning his nerve before reaching for the knob. He checked his watch: 5:58 AM. He was ahead of schedule. He had arrived on campus early to make sure he was the first freshman in the building on move-in day. That way, he could choose his bed and arrange his dorm room to his exact specifications before his roommate arrived. Nothing could be left to chance.

He remembered his mother's words at the bus station the day before. "Please be careful," she had said, wringing her shawl in her hands. "You're the first Morrison to leave home in four generations. You're a special boy, you know that. But the world is full of dangers for you. Just remember that no matter what happens, you're my angel baby and I love you." Preston wiped a tear from his eye. Reassuring himself that he had planned everything precisely, he opened the door and stepped inside.

Immediately, all of his senses were bombarded. A mix of pungent odors filled his nostrils: sweat, processed food, and a hundred others even more horrible. Dirty clothes and junk food wrappers were strewn over every surface, making the tiny room look like a patchwork quilt. And the sound… At first, Preston thought it was construction in the quad. Then he realized it was snoring.

He looked at the two twin beds in the room. Both were covered in piles of clothes, but one pile seemed to have a large, undefined lump underneath it, and it was rising and falling in rhythm with the deafening noise. Preston tiptoed in that direction. He stood in front of the pile and gave it a tentative poke with his mechanical pencil. No reaction. He tried again with slightly more force. The pile grunted and rolled over, causing a crusty bathrobe to slide off and fall to the floor.

Underneath, there was a very large man. He sprawled across the tiny mattress, his mouth wide open as he snored. His beer belly poked out from the bottom of his tattered t-shirt, rising and falling with his breath. His shaggy brown hair was stuck to his pillow with grease, and he had orange crumbs in his stubble. For a moment, Preston thought he might be a professor taking a nap in student housing. He didn't seem like the professorial type, but it was hard to believe they could be the same age. Preston looked much younger than his 18 years, but this guy could have been in his 30s.

Wrapping his hand in a tissue from his fanny pack, Preston shook the stranger's shoulder. The man took no notice and slept on. Preston tried again, more vigorously. The man grunted with annoyance and shrugged him off before turning onto his side. As he did, his penis flopped out of his boxers. Preston gasped and blushed beet red. Even flaccid, it was enormous, emerging from a thicket of bristly hair and emitting its own unmistakable odor that made Preston gag. He was fascinated with horror and couldn't look away. As he watched, it started to stiffen, extending to an improbable length. Was this slob having a sex dream? As uncomfortable as he was, Preston needed to put a stop to this right now.

"Excuse me!" he shrieked, his voice cracking. Forgetting to use his tissue, he grabbed the man's shoulder and shook it hard. "Is this room 249?!" The man's eyes finally jerked open, and he stared up at Preston in confusion.

"Whut? Oh, hey. You're, um… Preston, right? I'm your roomie, John. Welcome to paradise." He smiled faintly and rolled onto his back, his snores kicking back into high gear.

"Wait!" yelped Preston. John groaned and looked up at him wordlessly. "I'm sorry, I'm just confused. I thought today was move-in day."

"No, yeah, it is. I got the date wrong and showed up yesterday, but they let me move in early. Pretty sweet, right? That's your bed over there." He waved at the pile of dirty laundry on the other side of the room. "Just move whatever. I'm still unpacking."

Preston looked at the filthy rags covering his bare mattress. He could almost see the germs radiating from them. "Could you… please… help?"

John gave a good-natured grunt and heaved himself upright. The bed frame groaned as he rose to his feet. Standing next to Preston, the differences between them couldn't be more pronounced. John was nearly a foot taller, with wide shoulders and a chubby paunch that couldn't conceal his muscular build. He had the "dad bod" of a former athlete who had let himself go. A significant accomplishment for an 18-year-old.

His shaggy brown hair and stubble contrasted with Preston's light blond bowl cut, beardless chin, and pale complexion. Preston looked down at his own skinny body, seeming even more juvenile in the outfit his mother had picked out for him: a collared shirt tucked into pleated khakis, with pristine white sneakers on his feet and a mechanical pencil poking out of his shirt pocket.

Standing together, the two boys looked like a stereotypical nerd and the bully who torments him. But luckily, John didn't seem like that type. He gave Preston an apologetic grin as he reached over to the other bed and swept all the laundry off it with one arm. "There you go, roomie," he said, holding out his fist for Preston to pound it. "This is gonna be great."

Preston just stared at the outstretched hand. He was already planning his route back to his hometown. But no; he had come this far and was determined to see it through. Everyone back home had told him not to leave, but he knew he was meant for more, even if it required stepping way outside his comfort zone. Here at college, he could be anyone he wanted to be. And that transformation started right now.

"Hey John," he said with all the confidence he could muster. "It's great to meet you and I'm excited to be roommates. It's just… I have a lot of allergies, and I really need a clean space. I know it's a bother and I don't want to cramp your style, but it would mean a lot to me if we could set some ground rules about the room."

"Oh! Sure, bro. Say no more. Whatever you need, I got you." John looked around the room, surveying the mess. In doing so, he noticed his penis was still hanging out of his boxers. Unphased, he tucked it back in. "Like I said, this is gonna be great."

Two weeks later, things were not great. Despite his assurances, John had only made the room filthier and filthier as the days went by. Half-eaten food lay on every surface, and the trash can under his desk was already overflowing. The smell of the room overwhelmed Preston, keeping him up all night and following him wherever he went. He was sure his classmates could smell it on him, despite his daily routine of laundry and multiple showers.

Every time John left for class, Preston would don a surgical mask and thick rubber gloves to clean and disinfect from floor to ceiling. But by the time Preston returned from his own classes, the room would be just as filthy as ever. He felt like a maid, constantly picking up after his boorish master. He was rapidly losing his mind, but John seemed to take no notice. Unlike Preston, he had already made friends and was fitting into the college lifestyle with no problem. He was as happy as could be, totally oblivious to Preston's misery. As far as John was concerned, they were a match made in heaven.

"Yo, roomie!" he hollered one afternoon, as Preston stepped over a stack of pizza boxes to enter the room. John was sitting at his desk in just his boxers, playing a wrestling video game on his laptop. "I've got good news. We're going to a party tonight. Lambda kegger under the stadium bleachers. There's gonna be girls there."

"Thanks John, but I'm OK."

"Oh come on man, you gotta come. I've been telling everybody how cool you are. Wait… do you like girls? Totally cool if not."

"Yeah, I like girls. I just have a lot of studying to do."

"We're only two weeks in, dude. You need to loosen up. College is about getting lit and getting laid!" He guffawed, pounding his hairy chest like a gorilla. Preston grimaced and turned to his bed, pulling on his rubber gloves to clear it of John's dirty clothes. As he cleaned, he noticed a deposit of crusted tissues between two pairs of cargo shorts. At first, he thought they were his. They were the medicated brand he always used; he had a huge box of them stashed securely in his closet. He picked them up and gave them a tentative sniff. Immediately, all color drained from his face and he started dry heaving. His eyes watered, and it took all his willpower to prevent himself from being sick. That smell could only be one thing.

"Jesus!" he exclaimed, wheeling on his roommate. For the first time, he was unable to conceal his anger. "John! Have you been jerking off in my fucking bed?!" John stared back at him wide-eyed. He looked genuinely embarrassed.

"Oh, my bad dude." He stood up and grabbed the wad of tissues from Preston's hands. "I guess I wasn't paying attention. You just got those good tissues, you know." He balled up the disgusting mass and shoved it into his overflowing trash can. With horror, Preston realized the entire thing was full of tissues.

"This is what I was saying about the party. We're young guys, full of cum. We need to spread our seed. No offense, but you really look like you could use a nut."

"Just keep your damn cum rags off my bed, OK?! I told you I have allergies!" Preston stormed out of the room and marched straight to the library to cry.

Later that night, Preston had finally managed to achieve an uneasy sleep. In a fit of rage, he had scrubbed the entire room from top to bottom, and the sharp stench of disinfectant soothed him enough to doze off, cocooned in his blankets. He had just entered his first REM cycle when he was jerked awake by the door banging open. John stomped inside, wobbling in the doorway. He was wasted.

He didn't even close the door. He just stumbled to his desk, wrenched his laptop open and yanked down his basketball shorts, letting them fall around his Birkenstocks. "These college girls don't make it easy," he grumbled to himself, loud enough for the whole hall to hear. "Oh well. Don't take it personal, champ. You'll get 'em next time."

Preston knew what was happening, but he was paralyzed. He buried his head in his sheets, pretending to be asleep and desperately trying to ignore the disturbing sounds coming from across the room. Obscene male and female moans started blaring from John's laptop, followed quickly by a wet, slapping sound. Against his own wishes, Preston opened his eyes and peered over the sheets at his roommate.

On John's laptop, a busty blonde woman was eagerly sucking the penis of a pizza delivery man. The porn star's dick was big, but it was dwarfed by John's. Fully erect, it stood at least nine inches from his crotch, and he was stroking it up and down with tremendous force. His hand and dick were slathered with a thick coating of lotion; Preston recognized the bottle on John's desk as his own prescription skin cream.

Preston was outraged and disgusted, but he found himself unable to look away. Although he didn't want to admit it, John had been right. Preston was desperate for sexual release. At home, he had his own masturbation routine. Late at night when his whole family was asleep, he would tiptoe to the guest bathroom in the basement, lock the door, and take care of his shameful needs.

But since he had been at college, he hadn't masturbated once. The porn on John's computer, much more hardcore than anything Preston would dare to watch, and the gusto of John's self-pleasure were combining to drive Preston into a state of distraction. Filled with self-loathing, he began gently rubbing his own dick under his sheets, his eyes fixated on John's organ. The ripe, animal smells of the room and John's crotch filled Preston's nose, clouding his head and triggering receptors in his brain that had never fired before. His mother's warning flashed faintly in the back of his mind. He knew the danger of what he was doing, but he felt powerless to stop.

His heart beat faster and faster as John's grunts accelerated. Preston wondered if John was about to climax. Judging from the trash can, John wasn't kidding about being full of cum. How much would he produce? Would he do it in a tissue, or was he so drunk he would blast it all over the room? Preston wondered if his cum would smell different fresh. Were these thoughts really exciting him? He tried to will himself to remove his hand from his penis, but a force deep within his cells compelled him to continue. He prayed that John would finish soon, to save him from this torture.

As if on cue, John's hips started bucking in his chair. He reached blindly around him and grabbed Preston's best shirt, holding it in front of his dick as it erupted with cum. Huge gobs flew into the shirt and over top of it, coating the computer and wall as it kept coming and coming. Preston couldn't believe how much there was. The stench of fresh jizz reached his nostrils, and he came as well, filling his pajama pants with a much smaller quantity of his own seed. Even through his disgust, he was aware that this was the most intense orgasm of his life.

When they were both finally spent, John wiped his dick with Preston's shirt and dropped it on the floor. He lurched to his feet and yawned. Preston could see a bead of cum still trickling out of his huge cock. He stumbled forward, not toward his own bed, but toward Preston's. Preston strangled a scream as John collapsed on top of him. He rolled off and, to Preston's horror, started spooning him. Preston could feel his own cum cooling in his pants as John held him firmly in place and started snoring. This was the worst moment of Preston's life, but strangely, he found himself drifting off right away.

The next morning, Preston managed to extract himself from John's arms and flee the room before he woke up. He knew that John would have no memory of what had happened and probably wouldn't even realize he had slept in the wrong bed, but Preston was still deeply shaken by the experience. He tried to focus on his morning lectures, but he couldn't stop thinking about the night before. How would he face John again? Would his reaction give everything away? What if John found out Preston had masturbated too? What if he didn't mind?

Preston shook his head to banish these thoughts. His class had ended while he was daydreaming, and he was the only student still in his seat. He grabbed his books and hurried out before the next class shuffled in. It was lunchtime and he had skipped breakfast, but he couldn't even think about eating. He checked his watch. John should be in class right now, if he wasn't too hungover. Preston decided to chance it and return to the room.

He was in luck. John was gone, and the room was exactly as he had left it that morning, down to the crusted jizz all over John's laptop. Preston shuddered and did the only thing he could. He started cleaning. Donning his rubber gloves, he began flitting around the room at speed, stuffing dirty laundry into drawers and scrubbing every surface with manic energy. The only part he avoided was John's desk. He had no desire to get face-to-face with the disgusting dried sperm coating that corner of the room.

As he was picking up the floor, he became distracted by a half-empty bag of cheese puffs buried under a pile of textbooks. Something about it caught his attention, and he lowered his surgical mask to give it a sniff. The odor of stale corn starch and preservatives made him gag, but also reminded him how empty his stomach was. For some reason, his mouth started watering. He had barely been eating with all the stress, and in that moment, his appetite came back to him with a vengeance.

He had never eaten anything like these cheese puffs in his life. At home, his family only consumed locally produced organic foods with no seasoning. But he was so hungry he thought he would faint, and he blushed as he seriously considered giving in to this new urge. He looked around to make sure he was alone. He even drew the curtains. Then, questioning his very existence, he removed a puff from the bag with his gloved hand and took a tiny bite.

It was stale and mostly flavorless, and the flavor that was there was heinous. At least, it should have been. But when it touched his tongue, it tasted like the nectar of the gods. He began shoving fistfuls of the ancient puffs into his mouth, moaning with satisfaction at every bite. He was so distracted, he didn't even notice John enter the room.

"I have a fresh bag if you want them," John said. Preston's eyes whipped up in alarm. His face was covered in crumbs and his mouth was full. "Those are from move-in day."

Preston was so humiliated, the only reaction he could muster was anger. "Can you not leave this shit out?!" he shrieked. "I have allergies!"

"Then why are you eating it?" asked John with genuine curiosity.

"I'm… I'm not. I just… I can't have this stuff around, OK?"

"I don't mean to be a dick, but you keep talking about these allergies. I've never seen you sneeze."

"They're not that kind of allergies, OK?! Just pick up your shit. If it's not clean by the time I get back tonight, I'm going to lose it." Preston thrust the bag of puffs into John's hands and stormed out of the room.

He waited until after dinner to return. While he knew his requests were reasonable, he felt ashamed at his outburst. John might be a disgusting slob and a terrible roommate, but he was a nice guy, and Preston wanted to have a good relationship with him. He even thought they could be good friends, if they didn't have to live together. He rehearsed his apology once more in his mind before opening the door. But when he went inside, the room was dark and John was nowhere to be found.

It took Preston a moment to realize what was so odd. Then it hit him; the room was clean. John had actually picked up his stuff like Preston had asked. Of course, his cleaning wasn't nearly as thorough as Preston's. His closet was stuffed so tightly with clothes and junk, the door was straining against its hinges. There were stains in the shape of underwear all over the floor, and the smell of body odor still hung in the air. Preston was pretty sure you could bulldoze the building and that smell would remain. But all the same, he was touched.

He looked around, marveling at his roommate's surprising thoughtfulness. John had even separated all of Preston's things and placed them back on his side of the room. He had returned the tissues and lotion, and he had crudely folded Preston's clothes and placed them on his bed. Preston looked through them, realizing that some of his favorite items had been lost in the mess since he had moved in. He was on the verge of tears, until he reached the last item in the pile.

It was his best shirt. John had clearly put it on the bottom on purpose. When Preston tried to unfold it, he found it stuck together. The entire front was crusted with John's semen from when he had used it as a cum rag the night before. Despite Preston's expertise with laundry, he knew it was unsalvageable. The stain covered the entire thing, and it reeked of sperm worse than the trash can ever had. Preston gave it a sniff and felt his dinner rising in his throat.

Then he sniffed it again. There was something in the odor that he hadn't noticed before. Deep inside his gut, gears that had been inactive his whole life started clicking together. Somehow, the smell was intoxicating at the same time as it was repulsive. Preston raised the garment and took a deeper whiff. The gears started whirring, and he felt a lurch in his stomach. He needed more. Confused, disgusted and thrilled, he buried his face in the filthy shirt, filling his nose with the stench.

All of a sudden, he realized his cock was rock hard. He undid his braided belt and reached into his khakis to start stroking it as he smelled the shirt. He couldn't believe what he was doing. He had never had a gay thought in his life, but this was turning him on like nothing ever had. All over the room, John's odors came to life and invaded Preston's mind, making him moan and start jerking off even faster. It felt like the scent was getting stronger. Preston's nostrils flared as he drank it in, desperate for more.

On cue, the door opened and John stepped inside. For a moment, the two roommates stared at each other. John's eyes turned to the shirt and widened as he grasped the full extent of what Preston was doing. For the first time, he blushed. "Oh shit. I'll… uh… give you some space."

Preston panicked. He couldn't let John leave. He had to explain. "Wait! This isn't what it looks like."

"It's cool, dude. I don't care. You know we're solid no matter what."

"You don't understand. It's not because of you. I have allergies."

"Allergies… I told you before, man. If you're gay, that's OK with me."

"I'm not gay… and it's not allergies." Preston saw no choice. He had to tell John the truth. "I wasn't totally honest before. It's really hard to explain. No one outside my family knows."

"Knows about what?"

"It's some kind of genetic anomaly. Three of my brothers have it, and four of my sisters. I don't know what it's called or if it's found anywhere else. We've kept it secret for generations. But we're very sensitive to our environment. We adapt."

"I'm a communications major, bro. Dumb it down for me."

"Like my cousin Shirley, for example. She was always violently lactose intolerant. Then she married a cheese farmer, and now she can't get enough camembert. If we're exposed to something for long enough, our genes change to match it."

"And that's why you were eating my cheese puffs?"

"Right. So I need this stuff kept away from me."

"I guess I get it. But I don't get why. If you're adapting to like what I like, wouldn't that be good? It'll make us better roommates."

"I can't control it. It happens automatically, and the results are unpredictable and permanent. I can't let what happened to my mom happen to me."

"What happened to your mom?"

"I don't want to talk about it. The important thing is that human DNA is the most powerful trigger. So it would really, really help me if you could keep your semen out of this room."

"OK man, you got it. No more whacking in the room. And guess what? You're in luck. I've got a date tomorrow night."

For reasons he couldn't understand, Preston's heart sank. "Who is she?!" he asked, more harshly than he intended.

John didn't pick up on Preston's tone. "This total hottie from my mass media class. With any luck, I won't be back here till the next morning, and my balls will be drained. Everybody wins."

"Yeah…" Preston mumbled. "Everybody wins."

The whole next day passed by in a daze for Preston. His mind was filled with confusing thoughts, and his stomach had been churning ever since his masturbation session the day before. His skin felt itchy and warm, and he was consumed with a restless energy he couldn't release. He desperately wanted to orgasm, but he was afraid of the images that might pop into his head. Even as he sat jiggling his leg in his classes, he struggled with the thoughts that kept floating through his consciousness.

He kept dwelling on John's date. Who was this girl? Was she really into a big, smelly lout like him? What kind of girl was actually turned on by that? She was probably a frigid tease who didn't even care about his thick cock or bountiful balls. She would be grossed out by his cum and spit it out instead of gratefully swallowing it all with her mouth and pussy. A man like him deserved a fertile mate, ready to be bred. Couldn't he see that?

Preston realized he had an erection. His eyes darted around the classroom, hoping no one had noticed. Luckily, he was as invisible as ever. He glanced at the clock; his last class of the day wouldn't be over for another 45 minutes. Then he would have nothing to do but go back to his room and count the seconds until John came home… or didn't. The thought seemed like torture, but what was the alternative? As he stared out the window, an answer presented itself.

Across the quad, he saw John standing between two bushes, clearly waiting for someone. He was dressed in his best date outfit: the same football jersey and basketball shorts he wore every day. He hadn't even combed his hair. Suddenly, he opened his arms wide to greet someone. Preston saw a girl walk up to him and accept his bear hug, but he couldn't quite make out her appearance. John handed something to his date. At first, Preston thought it was candy or flowers. Then he realized it was a six-pack of beer.

The pair turned to walk off, and Preston was seized with a wild impulse to follow them. He collected his books and shuffled out of the room in the middle of the lecture, dodging judgmental stares from his professor. Outside, he frantically searched the horizon until he saw John and his date walking into the distance. He sprinted to catch up to them, but when he was close enough to be seen, he shifted into stalking mode. He knew how creepy this was, but he couldn't stop himself.

Eventually, the couple reached an outdoor cafe and sat down at a table facing the street. Preston ducked behind a bush and watched them as they ordered. John got a beer, while his date ordered coffee. Preston was dismayed to realize she was very pretty, although not as curvy as John seemed to prefer, based on his porn habits. She had curly brown hair and dressed casually in a t-shirt and jeans. Preston hated her.

Their conversation seemed pleasant, if a little mismatched. John's emphatic body language and bellowing laugh were catching stares from blocks away, while his date was very mild-mannered. Preston couldn't tell if she was embarrassed or charmed. He watched them carefully for close to an hour before they finally got up.

He followed them down the block. John put his arm around his date's shoulder and she didn't push him away. Eventually, they stopped in front of the most romantic restaurant in town and walked inside. Preston stood in front of the restaurant, clenching and unclenching his fists.

It was over. He couldn’t go inside without being spotted. What would John say if he caught Preston stalking him? Why the hell was he stalking him in the first place? He felt so dirty. The worst part was how crushed he was. The date was going well, he had nowhere to go but home, and he felt hopeless.

He walked back to the room in a daze. Inside, he was relieved to see that John had befouled the place once again. His dirty laundry emitted a satisfying funk that comforted Preston. He picked a pair of moldy boxers off John’s bed and pressed his face into it. The noxious odor made his knees weak.

What was going on? He had become dependent on foreign foods before, like when his sister Amelie had smuggled Oreos into the house, but never a person. This was really bad. He needed to move out as soon as possible.

But the thought of moving out made him burst into tears. He buried his face in the underwear and wailed like a little girl. He crumpled onto John's bed in a fetal position and dug himself into the pile of dirty laundry, his body racked with sobs. Eventually, he settled down, gently whimpering as he wrapped the clothes tighter around him. They were still warm. He couldn't get enough of John's smell. He felt himself getting hard and couldn't even muster the energy to resist. He stuck his hand into his pants and started stroking his dick. If he could finally cum, maybe he could regain his sanity.

He remembered John's orgasm the night before. At that very moment, he might be cumming like that inside of that ungrateful slut. Preston wondered what that would feel like. He wondered what it would taste like. He remembered the smell of his cum-soaked shirt and moaned loudly. He sat up long enough to rip off his pants, toss them across the room, and pick up a single yellowed sock from the floor.

Jackpot! It was filled with ancient jizz. Preston collapsed back onto the bed and fully submerged himself in the laundry, clutching the filthy sock to his face and furiously masturbating. His dick felt hot in his hand, like it was going to explode. A tremendous heat was growing from his belly and spreading through his whole body. He felt flushed and bloated, like a pimple that was ready to pop. He was terrified of what could happen, but a growing part of him really wanted it to.

Giving in would be so easy. It was the release he had needed his whole life. But he knew what that would mean. He had been warned about this possibility his whole life, and had dreaded it ever since. But would the worst-case scenario really be that bad? A voice inside him wanted it badly, and that voice was growing stronger the longer he touched himself.

His moans turned into gasps, and he began grinding his pelvis against his hand. He was close; he could feel it. It felt like his whole body was as erect as his dick, filled with rushing blood and more sensitive than ever. His stomach was doing flips. Every cell in his body was vibrating, shifting, preparing itself for an orgasm that would rock his world permanently. He was ready. His heart was pounding in his chest so hard, it felt like it was rocking the floor beneath him. Or was that something else? Footsteps!

Preston barely managed to release his dick and bury himself motionless under the pile of laundry before the door swung open. He couldn't see anything. Had John brought his date back to the room? What if they went to the bed and found him pantsless in there? He wanted to disappear from the face of the Earth. He strained his ears to try and figure out what was going on. No one was talking. Was John alone?

"Preston?" came John's voice, tentatively. "Are you here buddy?"

Preston said nothing. He didn't have a plan, but he knew he couldn't be caught like this.

"Huh. I guess everyone's walking out on me tonight." Preston heard John make his way to the desk. Daring to peek out from between two sweatshirts, he saw John pulling up more porn on his computer.

"Fuck, blue balls again. This sucks, man. I can't believe I blew it, I'm so fucking horny. Maybe I don't have the mojo after all." Preston watched as John pulled out his dick and started stroking it pensively. He stifled a moan and tried to resist the urge to grab his own dick as well, but it was hopeless. Once again, both roommates were masturbating at the same time. Meanwhile, John kept talking to himself as he wanked.

"I don't get girls. I'm a nice guy, and I'd treat them good and stuff. I just don't know why everything has to be so complicated. They always want me to shower and pick up on hints and go places and shit. I just want to chill at home and fuck all day. Why can't I find someone like that?"

"It's me!," thought Preston, stroking his dick harder. "Choose me!"

"If I found a girl with a sex drive like mine, I'd fuckin' marry her on the spot. There's gotta be someone out there who wants this cock. Someone's gotta want to take my load!"

Preston couldn't take it anymore. He moaned loudly, and in a much higher register than normal. When he heard the feminine sound coming out of him, he clapped his hand over his mouth, but it was too late.

"What the fuck?" said John. He stood up and strode over to the bed, pulling off the clothes on top of it with one meaty hand. Preston stared up at him like a deer in headlights. John loomed over him, and he blushed to realize what he must look like. Pantsless in his roommate's bed, with his hand still wrapped around his dick.

"I didn't know you were here…" John began.

Preston snapped out of his state of shock. He scrambled to his feet and covered his crotch with a towel. "I'm sorry!" he shouted. "I didn't mean to! It's just my allergies." He felt tears starting in his eyes. He braced himself for John to scream at him, but to his surprise, he didn't look angry at all.

"No, I get it man. I'm frustrated too. College is tough, huh?" The two shared an uneasy laugh. "I gotta be honest, I wish it could work out with us. If I could meet a girl who was like you, that would be awesome."

Preston's heart leapt, and he felt a lurch deep in his stomach. "Don't say that…" he warned.

"Nah, I don't fuckin' care. You're really cool, Preston. I don't care about your gene thing or your preferences or anything. You're my dude, dude." He held out his fist. With a sheepish smile, Preston pounded it. "I just kinda wish you were a hot chick with huge tits," John added.

Preston let out a little yelp. At John's words, his dick spasmed and felt hotter and harder than it ever had. Unable to control himself, he reached down and started stroking it.

"Uh… do you need some privacy?" John asked.

"No… just…" Preston struggled to think. He tried to remove his hand from his dick, but he couldn't. "Don't say that. My body…"

"Sorry, but it's true. That would be sweet, right? It's kinda hot to think about."

"Please…" Preston bent over, jerking off even faster.

"I don't know what it is, dude, but I keep thinking about it. You feel it too, right? Like you just want to give in."

"Ahhhhhh… I… can't…"

"Don't fight it, Preston. You're mine."

Those words boomed in Preston's ears, flipping a switch inside him. His dick swelled until it felt like it was going to explode. Then, with a tiny wet noise, it was gone. He let out a strangled yelp. His hand that had been rubbing his cock a second ago was now grasping at nothing. He patted his crotch and felt unfamiliar sensations that sent chills up his spine. He raised his hand and saw clear fluid on his fingers.

"Oh no!" he squeaked. "It's happening!"

"Are you OK, bro?"

Preston clapped his hand back over his crotch, ashamed of what John would see there. He felt his entire body churning under his skin. It was too late. There was no way to stop the process now.

"Don't look!" he begged John.

"Don't look at what? Wait… what's with your face?"

Preston ran to the room's full-length mirror. His face was rippling like water in a pond. He reached up to touch it and noticed that his hand was smaller than it had been before, with dainty fingers. As he watched, his face contracted and expanded in different areas, reforming into a new shape. Every individual change was subtle, but combined, the effect was dramatic. His cheeks plumped, his chin softened, and his nose shrank and turned upward. He was horrified to realize he looked adorable. He was also horrified to realize John was watching the whole thing.

"I'm calling 911," said John.

"No!" Preston screamed, grabbing his arms. "No one can know! Don't look at me! Don't… aaah!" There was a sickening crack as his skeleton compressed. Already short, he visibly shrank several inches in one second. He looked back in the mirror and saw his shirt hanging off narrow shoulders. Keeping his hand over his crotch, he saw his skinny legs ripple like his face had done, expanding until they assumed a curvy, feminine shape.

He felt a sharp pain as his waist contracted. It knocked the wind out of him, and for a terrifying moment, he couldn't breathe. He only managed to exhale when the pressure in his abdomen broke, and his hips suddenly flared out from his sides. John, who was standing behind Preston as he looked in the mirror, had a perfect view of Preston's bare ass blowing up like a balloon and jiggling into place. It was perfectly round and large enough that Preston could see it from the front in the mirror. It contrasted sharply with his narrow waist. Stepping back, Preston realized he now looked exactly like a girl, except for his bowl haircut and the flat chest under his button-down shirt.

"Is it over?" John asked.

"I think so," lied Preston. He knew what was about to happen, but prayed he would be spared, even as the voice in his belly grew excited at the idea.

"Good…" said John, but he didn't sound convinced either. He even seemed disappointed. That thought further excited Preston, and he noticed his nipples start tingling under his shirt. They itched and throbbed, and he was forced to reach up and start rubbing them through the thin material.

"Oh no…" he groaned. He started pinching and teasing his nipples, which grew larger and more erect. Even John could see the change through Preston's shirt, and he was watching with rapt fascination. His dick started stiffening again, and that made Preston play with his nipples even harder. Suddenly, with a high-pitched moan, he felt his hands fill with soft, almost liquid flesh. John watched a pair of perfect teenage breasts burst from his roommate's chest, poking through the shirt as Preston played with them.

As they both stared, Preston's chest grew larger and larger. John was totally lost in the sight. He started stroking his dick as Preston kneaded his growing tits and moaned in a voice that was rising in pitch every second. The two roommates stared at each other's bodies and touched themselves wordlessly. It was a bizarre scene, but somehow it turned both of them on immensely. Preston was so distracted, he didn't even notice when his tits finally stopped growing.

"Are they done?" John asked breathlessly. "They're huge…"

Preston looked down. He could no longer see his feet. His boobs were indeed massive, overflowing from his hands and pushing his shirt out far in front of his torso. His erect nipples were clearly visible through the material. Remembering his shame, he removed his hands, causing his tits to jiggle for a second. He covered his crotch and looked up into John's eyes, blushing crimson.

"It's done," he managed to say. He had a woman's voice, high and melodic.

"What the fuck just happened?!"

Preston looked at his reflection in the mirror. "I turned into a girl," he replied blankly. There was no use denying it. He wasn't just a girl; he was a woman. He had an adorable face with big blue eyes and creamy skin under his ridiculous boy's haircut. His arms and legs were dainty and pleasantly plump. His body was petite but curvy, with a narrow waist, wide child-bearing hips, and massive tits and ass. He was forced to admit he looked incredibly hot.

"You're so hot!" blurted John. "This is crazy! Is it the gene thing? It can turn you into a girl?"

"That's mostly what it does," Preston said miserably.

"How long does it last?"

Preston looked at John with tears in his eyes. "Forever. This is what happened to my mom. She was a boy too. She and my dad were best friends, until they went ice fishing and got snowed in for a week. By the time they got back home, she was pregnant."

"Was it… me? Did I do this to you?"

Preston blushed again and averted his eyes. "Kinda. I mean… yeah. But it's not your fault. You didn't know."

"I'm so sorry, man. I'm such an asshole. You asked me to clean up my shit and instead I've just been rubbing it in your face this whole time. Can you forgive me?"

He grabbed Preston by the arms. The force of his strong hands on Preston's delicate limbs made him yelp in pain, but also sent chills through his body. He felt his stomach churn. This was the worst part. He knew the cycle; he had been warned about it his whole life. Now that he found himself in the exact moment he had always feared, he felt every emotion at once. Dread, fear, shame, excitement…

"I forgive you," he said, "But I need your help."

"Anything, man. I told you before, anything you need. Just name it. I got you."

Preston couldn't look him in the eye. "It's hard to explain. I'm ashamed…"

John took him by the hand. "Anything," he repeated with shocking sincerity.

"I changed for you. My body imprinted onto your DNA. It's an atavistic reproductive adaptation tied to estrus."

"Huh?"

"It's like we're linked. My body changed to fill a need, and now I have to fulfill that role. It's instinct, I can't help it."

"I still don't get it."

Preston was getting increasingly frustrated. He writhed where he stood. The pressure within him was building, and if he didn't release it soon, he would lose his mind.

"It's because you're horny, don't you get it? Seeing your cock every day, smelling your body and your cum… I became a girl for you! It's my purpose!"

"You mean…" John let go of Preston's hand. For a moment, Preston thought he was going to leave the room in disgust, and he felt despair rising in his chest. Instead, John gingerly took Preston's other hand, the one that was still covering his crotch. With gentle but irresistible force, he pulled the hand away, leaving a trail of fluid from Preston's fingers to his groin.

They both looked at Preston's vagina for the first time. It was perfect. A light dusting of blonde hair covered delicate labia and a visibly engorged clitoris. It was soaking wet. Slick fluid soaked the entire area and ran down Preston's legs to pool on the floor. John's dick stiffened at the sight, making Preston's pussy throb.

"Please…" Preston whimpered, putting his hands on John's shoulders. "You have to help me."

"I don't know…" John replied, concerned. "It feels wrong. Are you sure you want this?"

"God, I want it. I can't believe how much I want it. Please…" he begged, "I need you!"

That was all it took. John wrapped his hands around Preston and pulled him close with violent force. Their lips crashed together and Preston's mouth opened automatically. Fireworks exploded in his brain as John's tongue invaded his mouth. He couldn't believe his first kiss was with a man, or that he was enjoying it so much. He kissed John back with unrestrained passion, their tongues intertwining as Preston moaned in a breathy soprano.

He pressed his torso against John, marveling at the intense sensations running through his new body. He ground against him, feeling his breasts flatten against John's stomach. He could feel John's hard cock rubbing against his belly, and it made his pussy drip even more. Their hands roamed over each other's bodies, desperate to explore every inch. They twined their fingers in each other's short hair as they kissed. Preston had never felt so sexy, so hungry, so fulfilled…

Suddenly, John pulled away. Preston tried to hold him back, but he was no match for John's strength. John looked at him sheepishly; for a terrifying moment, Preston thought he had changed his mind.

"Can I… see your tits?" John asked. Preston blushed, bit his lip and nodded. He was humiliated by the massive mounds on his chest, but the embarrassment just turned him on even more. He slowly unbuttoned his shirt, letting it hang open while he stood quivering, unsure what to do next. John took the lead, pulling the shirt off Preston's delicate shoulders and letting it fall to the floor.

Now totally naked, Preston looked down at his new body for the first time. His tits were huge, with creamy, unblemished skin and large, pink nipples standing out erect. He studied them in the mirror. They were the most perfect breasts he had ever seen. He realized John was staring at them too.

"Do you like them?" he asked timidly.

"Uh… yeah. Honestly, they're incredible. I'm like, trying to think of a pornstar with better tits and I can't. You could make a fortune."

Preston scowled. "Thanks, but no thanks. They're just for you." He blushed at his own comment, but it seemed to do the trick. John's eyes went wide and his nostrils flared.

"Holy shit…" he breathed. "Can I touch them?" Preston nodded again. John reached out and gave Preston's right breast a tentative squeeze. The sensation sent a shiver down his spine. He wanted more.

"You can be a little firmer, if you want." John took that invitation to heart. He attacked Preston's tits with such ferocity, it made Preston scream. He squeezed them hard in his powerful hands, kneading them in every direction and rolling the nipples around between his fingers. He bent down and buried his face between them, kissing every inch. He popped one nipple in his mouth, then the other, then alternated between them, leaving a trail of saliva as he sucked, licked, and teased them with his teeth.

Preston was in heaven. He couldn't believe how good it felt to have his tits manhandled. He was like a lamb in the clutches of a wolf. No matter how forceful John got, no matter the pain that came with the pleasure, he couldn't get enough. He mewled and moaned where he stood. With one hand, he started fingering his sopping-wet pussy. His other hand, acting on pure instinct, found John's cock and started rubbing it up and down. It felt enormous in his tiny hand.

His face still buried in Preston's tits, John removed Preston's hand from his pussy and replaced it with his own. With surprising tenderness, he began gently stroking the lips with his fingertips. Preston's knees went weak. He could feel every nerve ending in his vulva, and all of them were on fire. He could hear the wet noise of his juices flowing over John's hand. John started rubbing his clit with his thumb. Preston's breath caught in his throat. He thought he would faint. He might be a virgin, but John had clearly done this before, and he knew his way around a vagina. Preston succumbed to the sensation, knowing his orgasm wasn't far off.

Just when he thought he was about to go over the edge, John stopped. He pulled back, revealing Preston's obscenely engorged nipples dripping with saliva. Then, before Preston could react, John picked him up and deposited him on his bed, on top of the pile of laundry, as though he were as light as a feather. Removing his own shirt, he stood above Preston fully naked. Preston stared up at him, terrified and fascinated by John's body. It was beautiful.

Preston couldn't believe how much John turned him on. Everything about his roommate that had repulsed him at first now made him hornier than he could have imagined. He had never had this reaction to a man before, or even a woman. It was like seeing in color for the first time. Every detail burned itself into his brain and filled him with desire. He loved John's greasy, shaggy hair and unkempt beard. He loved his powerful shoulders and large hands. He loved the rippling muscles running up and down his entire body, visible through a layer of pudgy flab.

He loved that too: the double chin and beer belly, covered in thick hair. It looked so cozy. He wanted to curl up on John's chest like a cat and fall asleep. He wanted to coil his fingers through the dense thicket on his chest, legs, and back. He wanted to feel John's coarse pubic hair on his lips as he engulfed his beautiful cock in his mouth. He wanted that cock more than anything. He was seconds away from begging for it when John took action.

He crawled onto the foot of the bed, making it sag under his weight, and positioned himself in front of Preston's crotch. Filled with shame, Preston closed his legs, but John was undeterred. He simply spread them with his powerful hands, revealing the pink interior of Preston's brand-new pussy, dripping love juice all over the bed. Preston was so humiliated he could die. John bent down and gave it a deep sniff, then let out a deep, guttural growl of lust. "You want me to eat your pussy, baby?" he asked.

Preston whined with arousal at the sound of the word "baby." Unable to speak, he looked away and nodded. Then, without warning, he felt John's hot breath on his wet pussy. John started licking up and down the length of his vulva, slowly at first, then faster and faster. Preston's body exploded in pleasure. He had never felt anything like this. John sucked and nibbled his clit, making his moans rise another octave.

Preston felt unbelievably feminine, an alien feeling that thrilled him to his core. John's bristly cheeks and huge head between his legs were undeniably masculine, and he felt tiny and weak in comparison. He could sense his orgasm building once again. He had been denied release for weeks, and the sexual pressure he had felt in his balls was magnified ten times in his womb. Even an earthquake couldn't stop him now, but John didn't know that. He was putting all his effort into pleasuring Preston, his breath fast and his face slick with sweat and pussy juice.

Suddenly, Preston felt a thick finger slide between his lips. For a split-second, he panicked, but when his brain registered the sensation, his fear turned into ecstasy. He gasped as John reached further and further until his fingertip pressed up against the back of the clitoris, hitting a spot Preston had been unaware of. John stroked Preston's clit from behind and licked it from the front, and Preston felt a tidal wave growing in his belly. Almost there… almost there…

John must have figured out what was happening, because he suddenly drove his finger all the way in, simultaneously sucking on Preston's clit as hard as he could and reaching up to grab a tit with his free hand. That did the trick. Preston's mind went blank as a massive orgasm rocked his body from head to toe. He convulsed so violently on the bed, he would have been in danger of hurting himself if John hadn't been pinning him down. John kept licking and fingering his pussy, extending Preston's orgasm into a seemingly endless chain of climaxes. They kept coming and coming, making him tremble and whimper with pleasure every time.

Even when John finally raised his head, Preston kept grinding his pelvis against the air, savoring the last aftershocks. He never wanted it to end, and he massaged his own breasts as the sensation gradually faded. It felt like minutes before his mind was clear enough to remember where he was. Who he was. Who was he?

He opened his eyes and saw his answer. He was John's woman. His lover knelt above him, watching his naked body and slowly stroking his rock-hard dick. Preston's eyes fixed on that dick with renewed fascination. His first female orgasm had shaken loose the last resistance in his mind and revealed a powerful instinct to service his man. Her man. She was a woman now, just like she was always meant to be.

Filled with nervous energy, Preston sat up, still trembling from her orgasm. Her legs felt weak, but her resolve was strong. She knew what she wanted to do, and she felt hopeful John wouldn't object. But still, she was too embarrassed to say it out loud. She just gently grabbed John by the hips and guided him to sit on the edge of the bed. Then, shaking with nerves and anticipation, she knelt before him and looked into his eyes, scared that he would reject her. Instead, he just grinned. Preston's heart melted. She was in love.

She looked down at John's enormous dick, standing straight up from his forest of pubes and twitching in the light. She couldn't take her eyes off it. She gingerly took it between her dainty fingers and turned it around, studying it from every angle. It was the most gorgeous thing she had ever seen. Nine inches long and thick to match, the burly shaft curved upward elegantly, topped by a bulbous shaft dripping with precum.

Once again, she was amazed by her own arousal at features of John's penis that had horrified her before. The engorged veins, wrinkled balls and pungent aroma made her mouth water. Even her shame at her own reaction turned her on. This was the ultimate forbidden fruit, and she wanted to taste its juice.

"Do you like my dick?" John was looking at her sweetly. Preston could tell it was a genuine question. She blushed before answering.

"I love it. It's perfect."

"Some girls say it's too big."

"They don't deserve it." She bent down and sniffed the length of the shaft. John shuddered.

"Please touch it," he moaned. Preston didn't have to be asked twice. She wrapped her tiny fingers as far around it as she could and started stroking it up and down. John threw his head back and let out a deep sigh. Preston could feel his heartbeat through his dick, and it got faster as she gradually increased the speed of her motions. With her other hand, she began rubbing his huge balls, amazed at their weight and how they responded to her touch.

She tried to remember what felt good about touching her own penis, but those memories seemed like a lifetime ago. Seeing one from the other side, let alone a monster like John's, felt totally alien… and yet eerily natural. She drew on instincts deep within her genes, letting her hands guide the way. Her body was telling her to shower this cock with love, so that's exactly what she did.

She ran her smooth hands up and down its full length, entranced by its warmth and the way the skin moved along the rock-hard shaft. She experimented with different techniques: slowly caressing it, stroking it hard and fast, rubbing the sensitive spot just under the base of the head… It seemed to be working, because John let out a different kind of moan at each one. His reactions filled Preston with pride. She wanted to learn everything there was to know about pleasing him.

His breath grew faster, and a steady trickle of clear precum started dribbling from his urethra. It sparkled in the light, hypnotizing Preston. She bent closer to smell it. It wasn't as potent as his semen, but it had a trace of the same intoxicating odor. She wondered what it would taste like. Unable to control herself, she gave it a tiny lick, hoping that John wouldn't notice. Instead, he gasped the instant her tongue touched him.

"Fuck!" he exclaimed. "Did you just lick my cock?"

"I'm sorry! It's your precum. I didn't want to make a mess." He gave her a skeptical look. "And I wanted to know what it tasted like."

"What does it taste like?"

Preston saw no alternative. She bent down and gave his glans a slightly larger lick. He shuddered underneath her, and she rolled the droplet of precious fluid around her tongue, studying the taste. "It's sweet," she said.

"Do you like it?"

Preston wasn't sure. The flavor was subtle, and unlike anything she had tasted before. She licked it again, letting her tongue dwell on the tip of his cock as she collected all she could. Closing her eyes, she focused on the flavor. It was indeed sweet, a little salty, with a distinct tang. There was an underlying flavor, too. The unmistakable essence of John.

Seized with an undeniable craving, she bent back down and engulfed the entire head in her mouth, desperately sucking out the precum. The taste sent shockwaves down her throat and all the way to her pussy, making it flow harder than ever before. She was instantly addicted.

"It's so good!" she moaned, her mouth full.

"Fuck, baby!" John exclaimed. "That feels amazing. Please suck my cock!"

"I want to! I really really want to. But I'm scared. It's so big…"

"Take your time. I know you can do it."

Preston stared at the huge organ in front of her. It bobbed back and forth in time with John's ragged breath. It was rock-hard and purple, standing up at a right angle from his body and pointing straight at her face. She wondered if it hurt to have a dick that hard. It turned her on to think of how horny she made John. He was desperate for her touch, for the relief that only she could provide. All she had to do was give in.

But her fear was real. What if she gagged? What if she hated it? The thought of such a huge organ entering her mouth was terrifying. It was one of her lifelong nightmares, ever since the day her mother had sat her down for The Talk. Even more than intercourse, this image had haunted her. Something about giving a blowjob felt so submissive, so shameful, so gay… Giving in to the urge would violate the identity she had spent her whole life protecting. And that just made it hotter.

John took Preston's chin in his hand, breaking her out of her reverie. He looked into her eyes. "Don't be afraid. I'd never hurt you." Tears spilled from Preston's eyes. She leapt at John, and their lips met in a passionate kiss. As she nibbled his lips and teased his tongue, she could feel his dick between her tits. Without breaking away from his kiss, she pressed her cleavage around it, caressing it with her soft flesh. It felt so girly, she couldn't help but giggle through her arousal.

She looked down to see the head of his penis poking out from between her boobs. Her chest was shiny with John's precum. Desperate to taste it, she licked the tip. John gasped. Then, before she could chicken out again, she squeezed her eyes shut and engulfed the entire head in her mouth. It felt enormous, but she resisted the urge to pull back. Instead, she tightened her lips around it and began gently sucking. She probed its surface with her tongue, investigating it by touch. Yup, it was definitely a dick.

She tried taking it in a little deeper. Now her lips could clearly discern the texture of his shaft. Her tongue was perfectly positioned to caress the tender spot under his head, so she gave that a try. The dick shuddered in her mouth, and she heard John moan underneath her. She opened her eyes; all she could see was John's hairy pelvis inches in front of her face.

Preston couldn't believe it. She was sucking a cock. How did this happen? A few weeks earlier, she had been an 18-year-old boy, excited to finally leave home for college, hoping to find a girlfriend. Now she was kneeling on her dorm room floor, tits jiggling on her chest, with her lips wrapped around her roommate's thick cock. She had been warned about this exact danger her entire life, and she had lasted a total of two weeks before succumbing to the temptation. She felt like such a slut.

Suddenly, she was aware of John's hand on the back of her head. "Keep going," he moaned, as he ran his fingers through her blonde bowl cut. Obediently, she opened her mouth wider and took another inch of him inside. He moaned loudly, and she began bobbing her head back and forth as far as she dared. She could taste a fresh stream of precum, and the flavor sent sparks rattling around her brain. His pleasure excited her to her core, filling her with a sense of pride that outweighed the shame of having a penis in her mouth.

She might be a slut, but she was John's slut. Only he had this effect on her. In his arms, all the doubt about her identity melted away. All that mattered was pleasing this wonderful man. She started sucking his shaft harder and wrapped her right hand around the base, eager to stimulate as much of his penis as she could. It felt so fulfilling to service him like this. She could no longer deny the truth. She loved sucking John's cock.

Consumed with curiosity, she glanced across the room at her reflection in the full-length mirror. It was exactly as she had imagined. Her tits swung freely as she bobbed her head up and down on John's dick. She looked tiny between his thick, hairy legs, on her knees with her pert ass sticking out. She couldn't believe the girl in the mirror was her. She looked so natural, blushing with embarrassment and arousal as she made eye contact with her own reflection.

The sound of John's moaning snapped her out of her reverie. She had a job to do. With renewed enthusiasm, she lowered her mouth onto his dick even further. She was shocked to feel his pubic hair brush against her lips. He was all the way inside, and she felt no pain. In fact, she felt fantastic.

With a passionate moan of her own, Preston began bobbing her head up and down the full length of John's cock, pulling back until her lips just grazed the tip before plunging his entire shaft back down her throat. Her rhythm was slow, but she made sure to maintain suction the whole way, feeling every ridge with her lips while gently massaging the underside with her tongue. John gasped.

"Fuuuuuck!" he exclaimed, "That feels sooooo good. You're amazing, Preston!" Preston's pussy throbbed at the sound of John saying her name. She increased her pace, and John's moans transformed into animal grunts. It made Preston so happy to pleasure him like this. She wanted nothing more than to spend the rest of her life worshiping this cock.

She fingered her sopping pussy as she went. Saliva and precum dribbled down her chin and onto her tits, while her own pussy juice ran down her fingers and thighs. She could tell they were both close to orgasm, and she didn't know which one she was more excited for. The thought of John cumming in her mouth still scared her, but it also turned her on more than she would have thought possible. The image brought her even closer to her second female orgasm.

John's breath quickened and he started bucking his hips faster. He was fucking Preston's willing mouth, and she couldn't get enough. She tightened her lips and sucked on the pistoning shaft, desperate to draw out his cum. She was so close to orgasm; all she needed was to taste his seed and she knew she would cum all over her fingers. "Please," she found herself thinking, "please…"

Then, without warning, John suddenly pulled his penis out of Preston's mouth. She was confused; had she done something wrong? She opened her mouth and dove for it, but John pulled away. Tears sprung into Preston's eyes. He had rejected her after all. She should have known he would see her for the freak she was. She couldn't even bear to look him in the eyes.

"Preston…" came a voice from above her. Despite her shame, she obediently raised her eyes. John looked even more embarrassed than she was. "I'm sorry," he mumbled. "That was really good, but…"

"It's OK," Preston said, choking back tears, "I shouldn't have…"

"Can I fuck you?"

Preston's heart did a somersault. "Really?"

"Is that weird? You're just so hot and I really like you. You were sucking my dick and it was awesome and I was about to cum but I just really wanted to fuck you and I thought you might…" He blushed and trailed off.

Preston laughed out loud in a girlish giggle that surprised them both.

"What?" John said, scowling.

"You've got no game, bro." This time they both laughed.

"Yeah, you're right," John chuckled, rubbing the back of his neck. "No wonder I keep striking out. I'm lucky my roommate turned into a hot chick."

Preston grinned. Rising from her knees, she crawled onto the bed on top of John. Her pussy hovered over his cock. She leaned in until their lips were almost touching. "You are lucky…" she purred. "Your roommate turned into a hot chick who loves your dick. She started softly stroking it. "I'm lucky too…"

Her seduction was cut short when John grabbed her by the shoulders and flipped her around. Now he was on top of her, the engorged head of his cock tickling her wet lips. His eyes burned. "I need you," he growled.

"Fuck me," whimpered Preston.

Without another word, John thrust his nine-inch cock inside Preston. She gasped at the feeling of it sliding into her vagina, a sensation she could never have imagined. It was enormous. She worried for a moment that it would seriously injure her, but there was no pain. Her pussy opened up for John's giant organ as though it had been made for him. With a surge of ecstacy, Preston realized that it had been.

Within an instant, John had buried his entire cock inside Preston. At the moment their pelvises touched, the bulbous head reached a spot in Preston's cervix that made her see sparks. The pleasure was so intense, she couldn't breathe. When she finally managed to exhale, her breath came out as a single word.

"Fuuuuuuuuuuck!" she screamed in a high-pitched squeak.

"Do you like it?" John gasped.

"It's so good!" she yelped. "Keep going! Fuck me forever!"

With a manly grunt, John started pumping his dick in and out of Preston's pussy slowly and deliberately. On each stroke, he would draw his cock out until his head was just barely within her labia, hold it there for an excruciating instant, then powerfully drive it back, deeper than Preston would have thought possible, until it reached her G-spot and made her scream with pleasure.

She couldn't believe what she was feeling. An hour before, she could never have imagined having a vagina. Now, she was aware of every nerve ending inside hers. She could feel every detail of John's perfect cock as it slowly slid in and out. When he withdrew, she would whimper and whine, gripping him tightly to keep him inside. Every time he thrust into her, she would feel a rush of terror as his massive organ threatened to split her in two. But that would immediately be followed by an overwhelming ecstasy that made her moan like an animal in heat. A man was invading her body and soul, and she couldn't get enough.

"More," she begged. John growled and increased his pace, putting more force into each thrust. Preston wrapped her arms and legs around him, pulling him as deep as she could. Her pussy milked his cock, desperate for something only he could provide. With alarm, she realized she was thinking about him cumming inside her. She couldn't let that happen, could she? But the idea of being filled with his semen was unbelievably erotic. She was made to take his cum, and her entire body screamed for it.

John's breathing sped up with the exertion of his fucking. He was sweating freely, dripping all over Preston's face and body. The acrid smell made her even hornier. Was there any bodily function of his that didn't excite her? Their sex was dirty at the same time as beautiful, shameful at the same time as fulfilling. She had no idea how she would feel about this experience, or about herself, in the morning, but she was 100% certain she was addicted to John's dick. She would never be able to live without this feeling again, and she didn't want to.

"Can I try something?" John grunted in her ear. Unable to speak, she moaned in agreement. She would try anything with him. Pulling out of her, he got to his feet, then lifted her up and flipped her around. With a surge of embarrassment and excitement, Preston realized what was happening. He bent her over the bed, her face buried in his dirty laundry, and inserted his dick into her from behind. Her eyes bugged out at the sensation.

John started fucking Preston doggystyle, somehow reaching even deeper than before. Preston's moans didn't sound human. This was even more exquisitely degrading than sucking his dick. She could feel her tits sway with every thrust, and his powerful hands gripped her hips and held her in place while he dicked her down. She was totally in his control, and she wanted to stay that way for the rest of her life. But first, he had to cum inside her. She no longer cared about the consequences; her womb demanded his seed, and she was powerless to refuse.

His rock-hard dick started to swell inside her, and the thought that he was getting close made Preston's pussy throb just like it had before her last orgasm. She knew that as soon as he came inside her, she would follow, and she squeezed him even harder to bring it on as soon as possible. She had a lifetime to savor this feeling, but in that moment, she needed release. And she could tell John did too.

"Fuck baby," he gasped. "I'm gonna cum."

"Oh yeah baby, give it to me. Please cum inside me. I need it."

"But… we can't do that, right?"

"Yes we can. Please John!"

"You're not thinking straight."

"I don't care! I need your cum! Fill my pussy! Knock me up!"

But John had more self-control than Preston. She felt him withdrawing, and gripped him desperately with her fingers and pussy to keep his dick inside her. It was no use; he was much too strong. She felt his dick pop out of her sopping-wet pussy with a pang of despair. All she could do was stare up at the dorm room ceiling. But then, John leapt onto the bed and took position over her. She looked down just in time to see him shove his cock into her mouth.

Her muffled shriek of surprise immediately shifted into a moan of pleasure. She could taste the tang of her own pussy on his dick, and she sucked it as hard as she could while furiously rubbing her clit. With one violent thrust of his hips, he stuck his cock all the way down her throat. She felt it jerk, and suddenly her gullet was filled with liquid heat. The fluid spilled back up her throat, landing on her tongue and filling her brain with a salty, pungent flavor. When she tasted John's DNA, the final switch in Preston's mind clicked into place, and her pussy exploded in the orgasm she had been waiting for her entire life.

Electric surges of pleasure spread from her vulva through her entire body, making her convulse on the bed. She thought she would die from the pleasure. Meanwhile, John's dick kept erupting in spurt after spurt of hot cum. Preston eagerly swallowed every drop. Every time she thought her orgasm was dying down, a fresh burst of John's cum would trigger it all over again. She whimpered and rubbed herself, savoring the last aftershocks as John's ejaculation finally slowed. She allowed his dick to escape from her lips, content to lovingly lick away the last dribbles while she gently fingered herself.

When neither of them could extract any more pleasure from each other's bodies, John pulled away, still straddling Preston's torso. They looked into each other's eyes, totally spent. Preston didn't know what to say. "That was… really good," she managed.

John just grunted, exhausted beyond the point of words. Stumbling to his feet, he collapsed onto the bed, positioning himself behind Preston and spooning her. One hand curled around her tit, while his nose buried itself in her matted, sweaty hair. "Love you goodnight," he mumbled.

Preston blushed. "I love you too," she said, but he was already snoring. Smiling, she nestled herself deeper in his strong arms. She felt totally safe, in a state of pure bliss and relaxation she had never thought possible. They would have a lot to figure out tomorrow, but as John's snoring lulled Preston to sleep, she couldn't manage to worry. She was finally at peace.