Product: Bullied, Swapped, and Taken: First Time Male to Female Femdom Futa Gender Swap
Jenny has always bullied me, as far back as I can remember. Now she's enrolled in the same college that I'm attending and, even worse, we get paired together in our science class. But Jenny's got an offer for me. She's made this STRANGE concoction that she read about on the internet, and she says it'll change me in ways that I'll LOVE. I drink it and, come the next morning when I look in the mirror, there's a BEAUTIFUL WOMAN staring back at me! 
 
However, these changes to my body are just the start, because Jenny has PLENTY more exciting surprises in mind!

Search query: gender swap fiction
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