I'm not really into it, but I had a g/f who used to love to do it. She could orgasm simply from doing my ass with a strap-on. Since she did everything I ever asked, how could I possibly say no? It never really did anything for me, but it was a lot of fun listening to her as she got off using it. It was even more fun on the rare occasion when she invited a girl friend over. I had to tolerate getting fuck by them both but the reward was more than worth it.