Calm down! Katy Perry said some choice things about sex with Robert Pattinson, but nothing about actually doing the deed with Kristen Stewart's ex. Phew!

The "Teenage Dream" singer is "proud" she has never had sex with R. Patz, and she has some pretty stinky proof.

"Okay, so here's the proof there was never anything going on with me and Robert Pattinson," Katy told Elle UK. "I fart in front of him. Properly fart. And I never, ever fart in front of a man I am dating."

Oh wow, did Katy and Russell Brand have a less-than-ideal sex life because of her constant stomach cramps from not farting? We digress.

"He's my bud, I'm like his big sister [...] we just hang out," she clarified about the frequently-shipped pair's relationship.

"The other day, I said: 'One of the things I'm most proud of is not sleeping with you, Robert.' And that's true."

Katy's a pal to both Kristen and Robert! If you've been following this story, you may remember that when Katy and Robert (Krobert?) dating rumors first started circulating, Katy sent K. Stew a courtesy text to make sure nothing got blown out of proportion.

Meanwhile, Katy's back together with her ex John Mayer, and Rob is in the middle of wild speculation that he's dating/hooking up with/holding hands with/breaking up with Elvis Presley's granddaughter Riley Keough.

Now that Katy's cleared that up, are you disappointed?

Source: Us Magazine, Elle UK