Tears turn me on. It doesn't really matter what kind of tears - happy, sad, angry, pained... but something about seeing them in a person I'd normally be attacted to sends shivers and heat through my whole body. It grows into a powerful urge to s***. There are times when I get off on a audio recordings of people sobbing, or loop videos where I can see the moment of heart break in someone's eyes, and loop it so it can watch it break over and over again.
The odd thing is that I really hate hurting other people in real life... How messed up is that?