Mary-Kate Olsen Gets Protective of New Beau

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In romance news, don't mistake Mary-Kate Olsen for a pushover just because she's an anorexic, scary-looking, alien-like stick-figure.

The itty-bitty former Full House star maintained what is being called a "tight grip" on her rocker-looking "date" while making the scene at NYC hotspot Bungalow 8 with sister Ashley on Thursday night, the New York Post.

Olsen Twins Look On

It seems Mary-Kate, who was reportedly seen getting up close and personal with Killers drummer Ronnie Vannucci a few days back, had good reason to be clingy. Trouble began brewing when Keith Richards' daughter, Alexandra, turned up and began eyeing MK's companion.

"[Mary-Kate] got into a huge fight with Alexandra and totally told her off," claims a witness, adding that the teeny teen twin "started full-on making out in territorial, 'this is my man' style."

Olsen has admitted she was crushed when Stavros Niarchos dumped her for Paris Hilton, and apparently doesn't want to get burned again.

Wow, Stavros Niarchos sure gets around... with the nastiest chicks on Earth.

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Mary-Kate Olsen Biography

Mary-Kate Olsen of Weeds
Mary-Kate Olsen looks a lot like another former child star. We're talking about Ashley Olsen. We're saying Mary-Kate and Ashley Olsen are... More »
Sherman Oaks, Los Angeles, California
Full Name
Mary-Kate Olsen

Mary-Kate Olsen Quotes

It's weird to be called a celebrity or talk about it. I don't talk about being a celebrity in my business meetings. I don't talk about it with my friends. It's not a part of my life. It's a media perception of who I am.

Mary-Kate Olsen

He does not have a good temper.

Mary-Kate Olsen [on Spencer Pratt]