"Okay, so here's the proof there was never anything going on with me and Robert Pattinson," Perry reportedly told Elle U.K. (via Us). "I fart in front of him. Properly fart. And I never, ever fart in front of a man I am dating. That's a rule."
And there you have it!
"He's my bud, I'm like his big sister," Perry said of R.Pattz. "We just hang out. The other day, I said, 'One of the things I'm most proud of is not sleeping with you, Robert.' And that's true."
In the same Elle interview, Perry explained how she cleared things up with Stewart, whom she's also friends with, after the dating reports began hitting the web.
The 28-year-old singer dished, "I sent her a text message saying, ‘I know you've seen all this stuff, but you know I would never disrespect you. I'm not that person. I'm just trying to be a friend to him but it is unfortunate that I do have a set of tits."'
Back in May, a source close to the Perry-Pattinson-Stewart friendship shot down the false romance reports. "Nothing is going on between Rob and Katy," a source told E! News exclusively. "They are just super good friends. There is nothing romantic in it...Rob and Katy are just very similar people and she adores him, as a friend, and she just wants to be there for him as a mate."
Stewart, 23, and Pattinson, 27, broke up in mid-May after three years together. He's since been linked to Lisa Marie Presley's daughter, Riley Keough, but her rep told us last month, "Riley isn't dating Rob."
And last month, Stewart was rumored to be getting cozy with Boardwalk Empire star Michael Pitt. However Pitt's reps shot down the dating rumors, telling E! News, "While we do not comment on our clients' personal lives, please know that there is absolutely no truth whatsoever to this rumor that Michael Pitt and Kristen Stewart are dating."