Transfigure is an visual novel adventure game for adults, fully playable on mobile devices. As you progress you are rewarded with 1200+ real porn pics and video. The game is huge and would translate to 1350+ pages as a printed novel.
The main plot focuses on the male to female transformation of its main character, Taylor Roux. It's up to you to find out the mystery behind the transformation and a way to return to Taylor's original body. How seriously this mission is taken is up to to you.