Swift's rep, Tree Paine, tells PerezHilton.com:
Wow. Wow. Wow.
Kanye is straight-up INSANE!!!!!
Has this threesome turned into a foursome??
Having partied the night away at WeHo's Bootsy Bellows, Breezy Boy couldn't help but let this mystery blonde rub her booty ALL up on his lap!
But don't worry Rueche and Rih. We hear playboy declined a free ride for the lady, having eventually shut his car door without the shoeless party popper on his crotch.
Hmm… wonder if this was before or after Chrissy routinely checked RiRi's whereabouts…
[Image via AKM-GSI.]