What yaoi plot have you not seen before but would like to read?

I've kind of been mulling over this plot for a while:

A is the typical prince of the school. He has the looks, grades, talent, popularity. But he has a secret obsession. One day, in an attempt to escape his hoards of fangirls, he hides the closet of an empty classroom. From his hiding spot, he spots the school delinquent and the nerdy outcast doing the nasty ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄ .
Both are loners and don't associate with each other normally, plus A has never really had sexual feelings or experience, so his initial shock turns into curiosity. He begins to watch them from his secret hiding place on a regular basis until he gets caught by the two...... which may lead to a threesome? ╮(￣▽￣)╭

What kind of plot would you guys like to see?