Many Hollywood stars have gone to extreme lengths to keep their private affairs out of the public eye, but not John Mayer. The soulful singer has volunteered to share the most personal aspects of his life on many occasions - and most are about sex, the women he dated, and his nether regions.

"That girl, for me, is a drug. And drugs aren't good for you if you do lots of them. 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," he told Playboy magazine during an interview about fellow singer Jessica Simpson.

But it didn't end there. "There are people in the world who have the power to change our values. Have you ever been with a girl who made you want to quit the rest of your life? Did you ever say, "I want to quit my life and just f****n' snort you? If you charged me $10,000 to f**k you, I would start selling all my s**t just to keep f*****g you."

Simpson had a few words for the loose-lipped Mayer. "He'll never have this napalm again," she countered.

When asked by Playboy about dating black women, Mayer was once again very candid in his answer.

"I don't think I open myself to it. My d**k is sort of like a white supremacist," he said. "I've got a Benetton heart and a f****n' David Duke c**k. I'm going to start dating separately from my d**k."

However, he admitted to having a thing for actress Holly Robinson Peete.

"I always thought Holly Robinson Peete was gorgeous. Every white dude loved Hilary from 'The Fresh Prince of Bel-Air.' And Kerry Washington. She's superhot, and she's also white-girl crazy. Kerry Washington would break your heart like a white girl. Just all of a sudden she'd be like, 'Yeah, I sucked his d**k. Whatever.' And you'd be like, 'What? We weren't talking about that.'"

One starlet who really got under Mayer's skin is America's sweetheart, Jennifer Aniston, whom he dated for a few months in 2008, then again in 2009.

"We just have a regard for each other's feelings that is pretty intense. It's been a deep relationship, and it's no longer taking place at all. Have you ever loved somebody, loved her completely, but had to end the relationship for life reasons?" Mayer told Rolling Stone. Calling himself an "A-hole" for ending the relationship and also admitting "I've never gotten over it."

Country darling Taylor Swift, who is known for writing about her past boyfriends in her songs, beat Mayer to the punch by making her own public declaration.

Swift released the song "Dear John," after they ended their brief fling with lyrics that made him seem less than ethical. "Don't you think I was too young to be messed with," wrote Swift.

Mayer can dish it out but he sure can't take it.  "It was a really lousy thing for her to do," Mayer told Rolling Stone. "As a songwriter ... it's kind of cheap songwriting. .... I know she's the biggest thing in the world, and I'm not trying to sink anybody's ship, but I think it's abusing your talent to rub your hands together and go, 'Wait till he gets a load of this!' That's bull****."

The reason he gave for saying such hurtful remarks about the ladies he romanced is he didn't want to appear "boring" to the public.

"I had nothing to say - I was going through a time in my life where I didn't really want to share what was going on, but I didn't want to be boring," he said in an interview with NPR. He called the comments "free associating garbage" that were made because he "wasn't prepared to be honest."