Junjo Romantica. I've seen the anime and it was kinda disturbing how some of the plotlines included older experienced males with younger inexperienced males who "fought" the older male while still dealing with "their feelings."

I dunno. I just didn't dig on how, especially one plot line, where the guy was practically dragged kicking and screaming into the bedroom every time, but was still "in love" with the guy.

-aki