Search query: gender swap fiction

Product: Transformation Tech: Gender Change, Transformation
Relevance: Substitute
Ethan is a brilliant student with a dark past. After graduating from university with honors he struggles to find a post-graduate program that will accept him. When he gets his final rejection letter it appears that all hope is lost. That is until he receives a mysterious phone call from a professor at a small university in the Pacific Northwestern wilderness. Her name is Dr. Rachel Reins and she sees potential in Ethan.

Dr. Reins is as gorgeous as she is brilliant and she's working on a top secret project that will change the world. Ethan volunteers to be her assistant and starts seeing big changes as well. Rachel transforms him into a beautiful buxom redhead with curves in all the right places. When Ethan meets a man named John they hatch a plan to share this discovery with the world, but will Dr. Reins stand in their way?