Yeah, see (for this story) they were bored one night and then they had sex, which didn't bother Yamapi because he's like Gackt and can go either way even though he's not really gay... he's one of those people that can sleep with a guy once or twice but is still hetero. And he didn't care. But it shook Ryo and he was like WHOAH I'm so GAY and then Pi tried to help him when his dad wanted him to get married but it didn't work only they never told Ryo's dad that it was Pi's "fault" for Ryo's revelation b/c then Pi would get fired and that would suck. And that's another reason (besides their friendship) that Pi has to help defend Ryo against his dad, because he feels partially responsible. Yah.

Haha, sorry for making my own ideas about your story.