I have a secret, slightly strange relationship with Toba-san from my part-time job. We show each other masturbating. I'm sure she has feelings for me, and of course, I wanted to ask her to start dating seriously... One day, Toba-san, a closeted mote-nai girl with a deep interest in erotic things, begged me to develop her anus. "No, I... I don't really know how to do that." After being rejected by me, it seems Toba-san requested a famous developer... On another day, she showed me a video on her smartphone... In it, Toba-san's anus was developed to the point of gaping open, and she was twitching in agony, cumming repeatedly from anal creampies and double penetration fucking. "What is this..." I was so shocked and sad that I couldn't speak, yet my crotch was erect to the point of exploding...