The two friends are arguing over the fact that they evidently always steal each other's boyfriends/partners
The text is hard to read, so: He wants to take photos for the school newspaper and intentionally caught him alone
The photographer tells him that the best spot to take the photo is behind the bookshelf
He asks him if he's dating a first year named Fujisaki Yuya
Yuya is his childhood friend and he doesn't like that they're dating so he wants to make things "more interesting"
He says he's going to send a copy to Yuya
He discovers the uke is a virgin
Yuya appears
He suggests that Yuya "take him back" and that his body is already prepared