I'd be interested in doing one of a couple pairings over PM. The pairings are:

Sister x Brother's best friend
Two students who hate each other
Teacher x Student (if you're the teacher and you have an interesting plot in mind) < I sadly have no plot ideas in mind though.

As for plots I wouldn't mind doing either the Discovering Love or Post Apocalyptic (Zombie or Nuclear). I normally RP on a free-casual level, but strive for atleast 2 paragraphs or more on each post I make. Shoot me a PM if you want :)