I love it.

And I love having the tip of my cock sucked while I do it.
What is sexier than seeing your shaft between gorgeous tits and your cock in a beautiful woman's mouth?

It's funny. I used to peek into my parents' copy of The Joy of Sex as a kid and there were these pencil drawing. The most erotic of them all to me was the illustration of titty-fucking.

A tip for the guys to keep their ladies enjoying it:

Imagine putting your hands out, one foot apart, palms facing each other. That's the way I hold my lovers tits together around my cock. Then my thumbs are on top to go round and around and around her nipples while I fuck her tits.