The door to the class room opened, and 3 guys filed in. They seemed like nerds, the sort who got bullied a lot. They grabbed a seat, just as the bell rang. The door opened, and in walked a women, blessed with amazing curves. Her breasts were grapefruits, resting high on her chest. Her hips were wide, with her waist being very thin. Her hair was a lustrous blonde, and fell to her mid back, her sky-blue eyes glinting out from within her face. Walking over to the desk, she activated it, and a picture of a skinny young man appeared on the screen. "Last year, that was me", she said, in a melodious voice.
The boys eyes bulged, comparing the two images. There was no resemblance what so ever. "Now, my name is Ms. Smith. I will be teaching you during this course. Now, on your desks, there is a screen with selections on it. This will decide your appearance after your Gender Swap."
The boys set to work, eagerly wanting the new appearance. Beeps filled the air, as selection after selection was chosen. Then the air grew quiet, as all selections had been made. 'Well done, now, before we start your swaps, I must warn you. No matter what you look like, you sex drive will have increased considerably, and you may feel very aroused for no reason what so ever. Does everyone accept these terms?"
One boy quickly ran out of the room, apparently not wanting that particular change. The other boys nodded, and Ms. Smith stood up. "Very well then, follow me." Following the teacher, they began to feel aroused, watching her body sway invitingly as she walked. She led them to a room, which was filled with glass tubes. "Now, the data for your morphs has been input into the capsules. It will hurt, so we will put you into stasis while the changes happen. I will see you when you finish. Also, you must discard your clothes before the changes, so you will be naked when you emerge. You will retain all your memories as a male, but new female ones will be created. "
The boys stepped into the machines, and the capsules shut. Then liquid filled the capsule, and they felt no more.