Katy Perry doesn't do Vampires!

After hearing reports about her and Rob Pattinson being an item (And to clarify I said they had chemistry but weren't dating) she tweeted that she didn't DO vampires and posted a picture of her with her boyfriend Russell Brand. But what else would be the reason that Rob and Kristen have drifted away? I mean who gets in the car with a hot guy and not hook up with them?! To me it sounds like she doesn't want to be a known cheater..................................you can't resist Rob's sexiness! No one can! He would even make a straight man go gay (w/o wanting to)!

 

I mean who can resist that?!!?!!! He's definitely hotter than Russell Brand!