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Did Hilary Duff Just Admit Who She Lost Her Virginity To?

And did she just admit to having an 'eff buddy'?

Hilary Duff is, well, for the lack of a better phrase, coming clean about her past relationship.

The ex-Disney star -- and seriously one fit mama -- graces the April cover of Cosmopolitan magazine, and in the issue, she talks about her former relationship with Good Charlotte member Joel Madden. The two dated from July 2004 to November 2006, when Hilary was just 16 years old, while Joel was 26. In the magazine, she hints that she may have lost her virginity to the rocker.

“I had a 26-year-old boyfriend,” she said when asked when she lost her virginity. “So everyone can make their own assumptions about what I was doing.”

Oh, so you think that's shocking for the former child star with the squeaky clean image? Well, wait until you hear that Hilary had an "eff buddy."

“I’ve enjoyed myself,” she said. “I think everyone should have something where you know it’s not exactly what you’re looking for but you just have a wicked good time. That was freeing for me and a bit of an awakening. It’s fun to have a secret.”

Get it, girl.

It doesn't seem like Hilary, who recently filed for divorce from her ex, professional hockey player Mike Comrie, really cares that her secret is out since she doesn't feel the need to prove she's an adult because, at 27, she is.

“It’s frustrating to be put in a box," she said. "But I never needed to wild out to show that I’m grown up.”

One of the reasons why she may have kept herself out of trouble is because of the people she decided to surround herself with.

"At 19, I did a massive friend cleanse. That was really hard, to sit down with people and say, 'We can't be friends anymore,' she said. "They were like, 'That's f--ked up. You're a bitch.' But having a good reputation was important to me. That's not to say I didn't screw up and do little naughties here and there."