She Spins me Round Round
It's been about 3 months since I've taken my Thursday spin class. And let me tell you, my chipper and fun spin teacher still don't care about my lady parts. She does all these dangerous balancing moves that are fun to do once you've gotten the hang of it, but if you're 3 months out of practice - you're thinking, holy crap. One false move and no sex for me. Can tell if it's worth it.
By the way, let's get a poll going. If you could choose a really good back rub over sex, would you do it? What's easier to come by? Sex or full body massages?