10. Her pussy is so loose, you hope her ass might be tighter
9. You just want to make sure she doesn't have any polyps up there
8. You want her to experience what it was like for you in prison
7. Your mistress lets you do it
6. It makes it easier to pretend that she's a man
5. You're allergic to pussy juice
4. It smells much better from the rear
3. After all, it's the purest expression of love
2. Your ex-lover Bob always enjoyed it
1. You just want to hear her squeal like a pig