Katy Perry Reveals Why She Can't Have Sex With Robert Pattinson

Yes, platonic relationships can exist in Hollywood and Katy Perry has found the secret formula. According to the songstress, the reason why she hasn't hooked up with BFF Robert Pattinson yet is because she's passed gas in front of him -- and that's apparently a dating no-no. (So, apologies to my boyfriend.) "Okay, so here's the proof...