The National Enquirer magazine claims that the actress, 22, has been secretly seeing Knocked Up star Jonah Hill.
Olsen and Hill were spotted getting cozy at Los Angeles’ Château Marmont hotel on Aug. 26 – just one night after the famous twin stepped out to a rock concert with beau Nate Lowman.
A source tells the tabloid, “It was a shock to see Mary-Kate together with, of all people, geeky Jonah.
“Mary-Kate and Jonah sat close together and seemed totally into each other. They were both wearing plaid shirts that almost matched. It was the cutest thing.
“He’s such an improbable ladies’ man – but when you get to know Jonah, he’s very charming.”
Mary-Kate has been dating New York conceptual artist Nate since last fall, and has been romantically linked with Greek shipping heir Stavros Niarchos and the late Heath Ledger.
“I’m sure Nate would have been floored to see the spectacle – the poor guy is being two-timed,” the source added.
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