You had to go there, didn't you? :)
They probably wouldn't actually show the gay sex on network TV, so we don't have to worry. But they could definitely show the aftermath, and Howard dealing with his guilt, and hiding it from Leonard and Sheldon (Penny would probably figure it out), not to mention his mother. Comedy gold, I tells ya! They'd be crazy not to mine it.
(And I think Wolowitz is kinda cute. Then again, I think just about everyone is kinda cute, in their own way. But if I had to pick one of the cast, it'd be Raj. He's sweet.)