I love twisting my nipples hard and pulling on them while I jerk off. Sometimes, I'll put on nipple clamps, so my hands are free to explore my cunt.
I find most guys don't know how to play with a girl's boobies during sex, because they just don't bother to ask how we like it (every girl is different). Me...I like to feel your hands on my tits, lightly squeezing, jiggling, then playing rough with my nips until I cum all over your cock. Sucking is good, too, as long as it's really hard with some nibbling. Most guys suck so soft you can't even feel it. That just makes them wet and isn't any fun at all.
In summation, ask your chick what she likes and you'll achieve successful boobage.
