In a new interview with GQ published on Tuesday (Sept. 11), Paul McCartney got extremely candid with the men's magazine and shared a brief anecdote about a group masturbation session that involved himself, John Lennon and three of Lennon's friends.

"What it was was over at John's house, and it was just a group of us," he told GQ. "And instead of just getting roaring drunk and partying -- I don't even know if we were staying over or anything -- we were all just in these chairs, and the lights were out, and somebody started masturbating, so we all did."

McCartney then went into further detail, saying that the five boys encouraged each other to shout various names of celebrities during the group masturbation session.

"We were just, 'Brigitte Bardot!' 'Whoo!' and then everyone would thrash a bit more," said McCartney. "I think it was John sort of said, 'Winston Churchill!'" he added.

“It wasn’t a big thing," he continued. "But, you know, it was just the kind of thing you didn’t think much of. It was just a group. Yeah, it’s quite raunchy when you think about it. There’s so many things like that from when you’re a kid that you look back on and you’re, ‘Did we do that?’ But it was good harmless fun. It didn’t hurt anyone. Not even Brigitte Bardot.”

The former Beatle also opened up about sexual encounters with groupies and dispelled long-believed myths about band member orgies, in addition to more wholesome tales of his younger self wanting to be a Catholic truck driver and in studio recordings during his time in the Beatles.

Check out McCartney on the cover of GQ below.