Well here are a few things that I've been wanting to play, of course, these are basic ideas which we can expand upon if anything catches your eye. I'm really a sucker for cliche lines, so there's always the college professor and college student route, or employer/employee. The one that I'm most interested in though is that he's the father of Ricky's best friend, and while home on break from college/after college has ended, the two of them end up hooking up - either after they've ran into each other out on the town or Ricky comes over to their house and his friend isn't home.
Really though, I'm open to other lines/ideas so if you have anything do let me know!