John Mayer Mouths Off About Jessica Simpson, Exes

Feb. 10, 2010 — -- John Mayer just can't keep it to himself.

Popular music's No. 1 lothario is talking about his past hookups again. This time, his target is ex-girlfriend Jessica Simpson. In a recent interview with Playboy magazine, Mayer, 32, compared Simpson, 29, to "crack cocaine" and the sex they had to "napalm."

In the same interview, Mayer also likened his penis to a white supremacist, saying he doesn't think he "opens himself" to black women.

It's just another example of the outrageous quips about women and sex that spill out of Mayer's mouth. Below, check out what else the Grammy-winning singer has divulged about sex and his exes ... and one current, ahem, love.

On Simpson:

"Yeah, that girl is like crack cocaine to me ... Sexually it was crazy. That's all I'll say. It was like napalm, sexual napalm." (Source: Playboy magazine, via UsMagazine.com.)

On Jennifer Aniston:

"There was a rumor that I'd been dumped because I was tweeting too much. That wasn't it, but that was a big difference. The brunt of her success came before TMZ and Twitter. I think she's still hoping it goes back to 1998. She saw my involvement in technology as courting distraction. And I always said, 'These are the new rules.'" (Source: Playboy magazine, via UsMagazine.com.)