Kim Kardashian West hid after hearing her mother Kris Jenner having sex.
The 'Keeping Up With the Kardashians' star called her sisters and forced them to listen to the sound of the showbiz matriarch in the bedroom with a lover but admitted she also wished she'd been able to get the show's film crew over to capture the raunchy moment.
Asked by Ellen DeGeneres if she'd ever walked in on her mother having sex, she said: "I've heard her from downstairs, and that's just as bad as walking in.
"I literally put the sheets over my head. I called all my sisters and put it on speaker, and was like, 'What do I do?' I couldn't get a film crew there fast enough. I would've done that!"
Kim's sister Khloe Kardashian previously admitted she was "traumatised" after hearing Kris having sex with her toyboy lover Corey Gamble.
Khloe said: "Hearing them have sex is wild and I'm traumatised. Kim and I did.
"We were downstairs, and we just heard like [claps]. It's really a traumatising thing. And the headboard just going....We were hitting each other like, 'NO!' Kim was like, 'Wait, shh.' And then it was dead silent and then they went again for round two. I was like, 'OK, check please, I'm gone.' "
And the 31-year-old star admitted it wasn't the first time she had heard her making love, and she even accidentally found herself in the same room as her mother and stepfather Bruce Jenner - who is now known as Caitlyn since undergoing a gender transition - when they were having sex.
She added to Complex magazine: "That shouldn't happen to anybody, but it's happened to me a few times with my mom. When I was younger, I was hiding under my mom's bed for some reason, and her and Bruce started having sex. I was there and I couldn't leave. I had to stay until it was over."