Katy Perry’s boyfriend is dating her because she has big breasts. The singer is convinced it’s her ample D-cup bust that won over Gym Class Heroes star Travis McCoy.

“I’m probably going to get in trouble for saying this, but Travis said he was never a boob guy – he was always a butt guy – until he met me,” Katy reveals in the new issue of Complex Magazine.

The quirky singer is featured in a rocker-chick/S&M-inspired photoshoot with the urban lifestyle mag.