I needed to rush through showering and getting dressed so that I wouldn't be late for my next class which was sophomore health. I found it ironic to discover that today we would be studying the human female reproductive system. What are the chances of that coming up on the same day that there was a good chance I was developing these very same organs. Not that it was too much of a surprise since all last week we had been studying the human male reproductive system.
I paid as much if not more attention to what the teacher was saying as all of the other teenage males hoping that there would be at least one picture of a real naked woman. Of course their wasn't, this was a public school after all.
The class went fairly uneventfully though with more snickering than one normally expects from a high school class. After health was math, boring as ever and finally lunch.
Instead of heading straight from my math class to the cafeteria I again detoured to the boys bathroom to check for any changes.
Once more I was reassured when I didn't find any overt signs of breast growth on my chest. With a certain bravado I pulled down my pants and underwear to inspect my genitals. The grin I had felt on my face suddenly vanished as I looked down at my dwindling manhood.
My penis was half the size it usually was! There was no denying it now: I was turning into a girl. I reached under my diminishing penis to feel my balls and got an even greater shock: I couldn't find my balls at all. Sure my scrotum was still there but it seemed to be empty.
I sat on the toilet and bent over to get a better look. I couldn't see my balls either. They were definitely gone, or more likely had already turned into ovaries and moved themselves inside my body. As this realization sunk in I noticed a dark pink line running the length of the middle of my scrotum. I poked at it with a finger only to realize that it wasn't just a line it was actually a slit. Not a very deep one to be sure but a slit none the less.
The realization that soon I would get to see a real vagina was actually starting to turn me on despite the knowledge that it would be my vagina that I would be seeing. I felt my penis getting quite hard. Reasoning that this may be the last chance I had to masturbate before I got the wand back I took matters into my own hand, as it were.
It felt so strange to be stroking my penis and not feeling my balls dangling below. What I did feel below my penis though was an odd almost damp feeling. While continuing to stroke my penis with my right hand I reached below it to touch my newly forming slit with my left.
It was true: my new slit was getting wet! I ran my finger up and down it, enjoying the new and highly arousing sensation that rubbing it was causing. Suddenly the finger that I had been running up and down my slit encountered something new, a depression near the back of the slit.
I knew at once that this must be the beginnings of my vagina forming. I gently probed it while still stroking my penis. As I poked my finger into my newly forming vagina I realized that each time I slid my finger in it was going in farther before encountering resistance. What I failed to notice through the new sensation of fingering myself was that each time I slid my finger into my vagina my penis also shrank a little bit more, a little bit faster.
By now the sexual build up in my loins was near to bursting. I don't know when but at some point I had stopped stroking my penis to constraint all of my attention on my vagina. Suddenly it was as if a dam broke releasing wave after wave of built up sexual tension letting it roll through my body causing it to buck uncontrollably and nearly causing me to fall off of the toilet.
As the orgasmic bliss slowly faded several things flowed through my mind: I had a vagina, I'd just had a female orgasm, it was by far the most incredible sexual experience of my life, and all traces of my old male genitalia were gone. Between my legs at least I was entirely female.
Eventually a thought coalesced in my head: I had hardly transformed at all before coming into the bathroom but as soon as I started masturbating the change sped up rapidly. I was beginning to resign myself to being female until Friday and began to wonder if the same treatment would make my breasts grow.
I pulled my shirt off and tossed it to the floor. Looking at my chest everything about it seemed the same at first; and, then I noticed that there didn't seem to be as much hair as there was before, not that it had been much to begin with. Wondering if stroking my chest would encourage my breasts to grow, both an exciting and frightening prospect, I began to carefully caress and pinch my nipples.
What I found as I played with my nipples was...