It's What I Want by Tanya Allan

Don is a bit of a geek. But his intelligence was matched by his kind heart, and his flat mate and friend Steve appreciates his help in his university course work.

Don is a little confused as to why Steve and two other friends want him to join them of a motor cycle tour of France in the summer holidays, but he is pleased to be asked, and goes along. On their first stop, a cool group is playing at a night club, but it is a couples only evening, and Don is persuaded to become Donna for one evening, just so the four friends can see the show.

But no one expected to find Donna still there on the following morning.

In fact, Don never returned. And Donna was anything but a Geek!

Lainey stood behind the counter. Diane was just turning the open sign around to face the outside when a tall young man stood at the front door and knocked rather sharply. Diane turned with a start at the noise, considering how impatient the young man must be.

 
WARNINGS: Contains transgender themes, Sci-Fi, explicit sex, mild violence, bad words, and strange ideas. It has only the strange things that dribble from my head. If you are not old enough, mature enough, open minded enough, and especially not smart enough to stop reading should you find yourself becoming offended viewing such a story, don't!

We often must suffer to be beautiful and love can hurt, but fun is fun!

B.E.L.L.E. - BOYS ECHOING LACY LASS ESSENCE on-line catalog
GADGETS FROM LADD'S EXCHANGE MALL

(The BeC Clothing Line by Jamieboy is a great start for a story. He refers to a company called BELLE. In a comment he refers to an idea he read years ago. I'm pretty sure it was a story I published 1in 1999 on Fictionmania I called The Ladd's Exchange Mall.
Below is a list of gadgets that were invented by the staff at LEX Mall to aid in trnasforming boys. What follows is simply a complied listing of their efforts that was never before published.

After a tense start, Luke makes some useful contributions at the Institute while he waits for his transition to happen.

The BeC Clothing Line, advertised for frustrated mothers everywhere; Just don't let the kids know the BeC stands for Behavior Changing! A new (I hope!) short-story world.