Someone at Radar Online saw with their very own peepers the demise of the long time relationship between young Hayden Panettierre and the old Milo Ventimiglia Wednesday night.

We’re seven hours late for work today because we partied at Crown Bar until we passed out – no, not from drinking, from shock. It happened right after we saw 19-year-old Hayden Panettierre ALL OVER Jesse McCartney. The Heroes star was sitting on Jesse’s lap while he kissed her neck. Then she got up and did some crazy sexy dance in his lap.

The insider also saw the two outside in the smoking area get close and cuddly.

A great story from Suffern, New York. Security staff at a nightclub in upstate NY kicked Hayden Panettiere out on her nineteen year-old but last month.

As soon as one of the bouncers recognized the teenage actress, they took her ID and told her to scram. Not being used to such heinous treatment, Hayden immediately caused a scene by calling the police and demanding that the bouncer return her ID card.

Apparently the town of Suffern does not honor the underage celebrity drinking rules. Besides you can’t tell someone that has partied with the Great Wonk-Eye that she can’t drink in your club.

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Not only does she save the world every week, she frolick’s and looks adorable in a bikini too. Hayden Panettiere is really just too cute to be sexy yet, don’t you think? Click here to see more of Hayden.