It turns out Kourtney's not the only Kardashian sister who's had sex in public – Kim Kardashian just admitted that she has, too!
The mother-of-two did a live Q&A last night on her website and revealed that she's not only a member of the mile-high club, but that she's had sex in a public movie theatre!
"Am I [part of the mile high club]? Yeah," she said. "But like the private. I don't think like a public plane…It would have to be an international flight. It was an international, night flight when no one's like around."
Another fan asked about the craziest place she's ever had sex and she said, "Like a public movie theatre, yeah."
Click through the gallery to see more celebrities who have admitted to getting it on in public.