Elizabeth Vargas Interviews Mick Jagger

After four decades in the public eye, Mick Jagger is still a mystery.

Since the early '60s, he has led the Rolling Stones and legions of revelers through an experiential odyssey of sex, drugs and rock and roll.

In a rare interview, he revealed more of himself to ABCNEWS' Elizabeth Vargas.

Jagger admits that he loves to shock people, although he says in the band's early years, "we had no idea we were shocking anyone … we were very sweet suburban kids." As time passed, he said, "we had acerbic tongues."

They stuck those tongues out at the establishment and became rock legends, earning 25 platinum and 38 gold albums.

Talking About Sex

Jagger, the 58-year-old multi-millionaire showman has always had two sides. He came from a middle-class family and went on to study at the prestigious London School of Economics. And the wild rock and roller has always been a doting father — of seven children — in private.

"I think you play good cop, bad cop with your children, to a certain extent," said Jagger. "On some occasions you've got to be quite disciplinarian and other occasions you've got to be easygoing."

Despite his outrageous experiences, even Jagger has a tough time talking about sex with his kids. "It's always a difficult subject telling your children about sex," he said. "I don't think you can sit them down and tell them everything about sex in one go. You know, you just tell them sort of little things as you go along and don't make it too, kind of a big deal."

His Women

In his 40 years at the cutting edge of cool, Jagger has embraced alternative lifestyles — including liaisons with much younger women — some during his 20-year relationship with model Jerry Hall, mother of four of his seven children.

"In our society, we're supposed to be monogamous, but we're not," he said. "In other societies, you don't have to be monogamous, and we're all human beings, so supposedly we've evolved all these different systems for dealing with this."

Calling women "fascinating," he said, "It's very odd, the relationships that men have with women … Men like to still, after all this time, they like to find women mysterious."

He is reticent about discussing his relationship with Hall today. "We're very good friends. There's no question about that," he said.

Asked if he's ever truly been in love, Jagger said, "I really can't answer that question." He says he respects women, but can't answer if he'll ever marry again. "You never want to say never," says Jagger. "Whatever you say is going to be wrong, isn't it?"

Goddess in the Doorway

No matter how turbulent his love life, the one constant for Jagger has been his music. His new CD, Goddess in the Doorway, reveals a more reflective side of the legendary rocker.

"I have mystic overtones," says Jagger. "I think everyone has a spiritual side, but I'm not a very church-going, sort of regular religious person."

As for retirement, he says, "I think I can write songs for quite a long time." But he'll only perform as long as he's able to do it his way. "I like to perform in a very physical way. So I don't know how long I'll be able to do that."