Or at least, she knows I'm wearing a bandeau sports bra.
I stopped at the store on the way home from work and picked up 7 24oz bottles of water, 24 energy shots, and some candy bars (I always used to tease girls about chocolate cravings... now I'm experiencing them, it must be hormonal...) This is in addition to my work kit that weighs several pounds on its own. Anyways, with such a heavy load sitting on the rack over my rear tire, I decided not to leave it strapped on while I put my work uniform t-shirt back on over my bra and undershirt combination. Needless to say, she noticed the bra.
She was like, "what's that?" I'm like, "what?" She's like, "underneath your shirt, is that a bandage?" I'm like, "you can call it that," and she's like, "what's going on?" I just ignore her, trying to come up with a decent excuse that doesn't bring up any other baggage, and she asks again, more insistent. Finally, I say "Nipple irritation," which is precisely true, I didn't start wearing it until my breasts became too sensitive not to. She pauses for a moment, and then is like, "I just never know with you do I."
So, I guess she's accepting enough. Most likely she won't tell Dad, she tells him very little in general about anything. It's Dad I'm worried about, he tends not to take things that are different about me from other guys well.