hmmm interesting question:
I usually make love with either Hefner, Beck (my girlfriends musical hero), Liz Phair or Jeff Buckley playing in the background - other light alternative mood setting music is ok to ....... and on some occasions I just make love to my girlfriend while the CD
In Utero by Nirvana is playing: it doen't happen very often, but when it does well: "it rocks"
