Katy Perry s co-star in the video for her 2010 hit Teenage Dream is accusing her of sexual misconduct.

In a candid Instagram post published Monday, model and actor Josh Kloss says that Perry exposed his penis to her friends at a party.

Kloss wrote:

So I saw Katy a couple times after her break up with Russel. This one time I brought a friend who was dying to meet her. It was Johny Wujeks birthday party at moonlight roller way. And when I saw her, we hugged and she was still my crush. But as I turned to introduce my friend, she pulled my Adidas sweats and underwear out as far as she could to show a couple of her guy friends and the crowd around us, my penis.

Can you imagine how pathetic and embarrassed I felt?