Mischa Barton is Playing the (Rugby) Field

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Is Mischa Barton cheating on her greasy rocker boyfriend with a Rugby star? All signs point to yes, reports Starpulse. At least if you consider kissing a U.K. Rugby player named Mark Robinson to be cheating. Mischa and Robinson were caught kissing at a London club last week, which doesn't bode well for Mischa's current (or perhaps ex) boyfriend, Cisco Adler.

An onlooker at the party tells British newspaper the News Of The World, "Mark couldn't believe his luck. One minute they were standing there talking and the next they were all over each other in the corner of the tent. They were snogging (kissing) and running their hands over each other's bodies. They didn't seem to care who saw."

A close friend of Robinson adds, "He's been smiling all week and has told pals but won't talk publicly."

Of course, with Mischa spending her summer in London, and now spending time all the way down under in Sydney, Australia, it really doesn't look good for Adler. Who knows, maybe Mischa has realised that she's actually hot enough not to have to date gross guys who are 90% oil. Or maybe she's just easy.

More pictures of Mischa Barton in Sydney after the jump.