Geibi de Meiki♂Kaihatsu: Ojiru-mamire no 7 Days

Summary

No way...why am I getting an erection to a gay porn video?! Yokoda is a teacher who accidentally runs into one of his students at a local porn shop. He only picked out one video, but for some reason, when he gets home, he finds two in the bag! And it's gay porn... out of curiosity, he sticks it in, and to his surprise, IT moves! And the more gay porn he sees, the more he's overcome with the urge to jack himself silly! And then, finally, he comes to meet his student again... "Please... do it to me like they do in the movies..." With his hands, his mouth, and toys, too boot! The action is even synchronized with the movies on screen! Ohhh... (Source: Manga Reborn)