Seconded with no hesitations. There's just something absolutely erotic about a partner's moist eager lips and tongue on my breasts.
Same goes for sucking another woman's breasts. I can't quite articulate what I love about it, but I'm always down for kissing a woman's tits.
Saaaaame. I love having my nipples sucked and bitten. I REALLY love sucking another woman's tits though.