Mini mogul Mary-Kate Olsen has sparked rumors that she is dating Superbad comic Jonah Hill after the stars were spotted together at LA’s Chateau Marmont Hotel last week.

“It was a shock to see Mary-Kate together with, of all people, geeky Jonah,” a celebrity mole has revealed to the National Enquirer.

“They were on a double date with another couple, dining at the hotel around 10 pm. 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,” the source adds.