As we told you yesterday, dubious sources are claiming Robert Pattinson (who was seen with a red-headed woman in his truck over the weekend) is dating Riley Keough -- his ex-girlfriend Kristen Stewart's co-star in 'The Runaways.'

Unfortunately for any of you Roley -- oh shut up -- 'shippers, Keough's rep is saying those stories are completely false. (And that, folks, is why we use words like "allegedly.")

"Riley isn’t dating Rob," a rep for the actress told Just Jared. "And I can confirm that Riley was not photographed at all this weekend."

Short and sweet, but there you have it. Riley and Rob are not an item. Maybe because there's really no good couple name for them.

But wait. If that wasn't Riley in Rob's truck, who was it?

Let the rampant speculation begin!

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