Jared Leto allegedly asked a 17-year-old fan to "call [him] daddy" when they had sex.
The 54-year-old actor is the subject of a new BBC documentary, Jared Leto: Hollywood's Dark Secret, and one of the 10 women who shared her story in the film is identified as Clara, who met the Thirty Seconds to Mars frontman in 2006 when he was 34 years old.
Clara had been approached at one of the group's gigs by an associate of the Kings and Queens singer and got her phone number. They subsequently went back to Leto's house in California and allegedly had sex while her friend waited in another room.
She said: "He told me, 'I would like you to call me daddy'. And it was either pretend to be a little girl or 'my little girl'."
The woman noted she was "so naive and vulnerable" and had no sense how "normal" Leto's behaviour was.
She added: "It was only as time went on that I realised more and more how scary that really was."
The incident was the first of Clara's three or four visits to Leto's home, and she recalled discussing the age of consent in California with the Masters of the Universe actor, because she was under age in the state.
She said: "He just kind of shrugged it off, like it wasn't a huge concern for him...
"There is no well-adjusted man in his 30s who's going to look at a teenager and think… she would be a great partner."
Another woman, identified as Alex, was 19 when she met the rocker but "felt the need" to pretend to be younger in order to protect herself - but she alleged Leto was dismissive when she told him she was 17.
She claims he said: "Age is just a number, and anyway, we're in Europe."
One former Thirty Seconds to Mars crew member told how a request "direct from Jared" saw them call local modelling agencies during the group's arena tours in the 2010s to offer female models free VIP tickets, which included a special backstage room for them.
Alex was one such model invited to see the band at The O2 in London in 2013, and she was subsequently invited to an afterparty at Shoreditch House by Leto's female assistant, and she was later encouraged to go to another party at a nearby hotel later - but was shocked to discover she was the only one there.
She said: "I get into the hotel room, it's really dark, and then I see that it's just him. Weren't there supposed to be other people?"
Alex claimed Leto refused her request for a phone charger or cash so she could get home, and then asked if she could sleep on the chaise longue in the room.
She alleged the Fight Club star responded by saying that if she did, she would wake up "with a d*** in her a**".
After repeating the response several times, Alex felt she was "not safe" and left the room, and later texted a friend to tell her what happened.
Her pal replied: "He was threatening sexual assault, you should report him."
While she tried to dismiss what had happened, Alex now believes the encounter had been "all planned out".
She added: "The assistant knew what to say, to lure me into his hotel room."
Despite repeated attempts to contact Leto for the BBC documentary, he has not responded to the allegations.
Jared Leto: Hollywood's Dark Secret is available on iPlayer now, and airs on BBC Three at 9pm and BBC One at 22.45pm on Wednesday (29.07.26).
