My name is mark, i’m 17, or well i was. I got the ability to transform into anyone i wanted to, however this power backfired badly. Class had just ended and i tried to get into a hot guy’s body in the halls but i bumped into someone and shot it at my female classmate, Jenny. I realized my mistake and weirdly enough ran into bathroom. Soon I felt my transformation to begin, and it was not painless. I felt my height lower from 6’2 to 5’1, as well as my limbs got thinner and lost hair. My hair also grew down to about my chin and turned from black to a blinding brown. immediately my vision got blurry and glasses appeared over my face, my features turned more to face like hers, her face whiter and with dimples as well as feminine. My voice changed and it sounded just like hers, which prompted my limbs to finish changing and for the nails to be painted in a blue coat. My torso grew small B size breasts and my stomach’s fat contributed to my breast growth as it shrunk to a skinny size. I felt a pinch in both my ears and earrings appear and metal braces on my teeth. My clothes had rearranged so i was wearing a bra and my underwear had changed into panties, my white shirt becoming a smaller size to fit my new body proportions and my pants becoming a skirt as my socks grow longer and cover some of my hairless legs. The final parts of the transformation occurred when i lost a majority of my memories and gained new ones. Finally, My Penis and Testicles began shrinking and i felt them go inside me. After 20 seconds i felt something forming in my body, being my new uterus and ovaries forming. I Moaned slightly before i felt everything finish and my new Vagina finally complete. I was now a girl, not just any girl, but my 15 year old classmate Jenny. I looked around in dismay and felt around myself. I touched my panties under my skirt and realized my dick was gone. “Y-yep, i’m a girl now.” I told myself before someone else walked in. I realized it was Jenny’s friend, Jane. I had stumbled into the girl’s bathroom by accident. “You okay Jenny?” She asked me. “Y-yeah, just tired ig.” I replied. “Alright, i think we gotta go to pick up” She said. I nodded and went off. I saw a copy of myself and realized that she now has my old body. I felt it odd how i walked and it felt so natural. We got to the car line and i got in my Brother’s car. We set off to my house and probably where i would live for the rest of my life.