And on Voyager, I remember one of the episodes where he was trying to bed Janeway, and the reproduced with another Q. Then when Q asked Janeway if she wanted to watch...priceless. Of course, she did watch them touch fingers.

He did indeed.
I saw an episode of Voyager the other day with the original Q in that as well. He was trying to prevent another guy in the Q continuum from committing suicide (yeah, I know they're meant to be immortal, he had to turn human first.) Entertaining stuff.

Q made TNG even more awesome