lindsayseriousseen.jpgSenn pic courtesy MTV

I guess once wasn't enough! This story just keeps getting juicier and juicier, so keep reading...

Back in December of last year, Lindsay Lohan was reportedly getting serious with a male model from The City named Adam Senn. She even took him to meet her family! But as with most of LiLo's romances, it fizzled.

Now Linds has hooked up with her Gucci guy again at Voyeur last night, but she didn't arrive there with him!

A source inside the club tells X17online the following exclusively:

    "There was some bickering going on because Adam was there with some other chick but soon Adam ditched her to spend the night with Lindsay. And later on, Lindsay was shouting at the girl, acting so jealous for some reason! Linds kept groping and grinding against Adam before they left together. I wouldn't be surprised if they hooked up."


Scandalous! But it doesn't end there.

X17 photogs chatted with a very angry girl leaving Voyeur solo that night, and she had a LOT to say about both Adam Senn AND Lindsay Lohan!

Apparently, this bitter blonde used to be Adam's "homie" but now she's over him and how he treats all his girlfriends.

"He's a piece of sh*t!" the girl shrieks. "He dates like five girls at a time and Lindsay happens to be one of 'em and has no idea what's going on."

Adam's former homie also says Lindsay "looks horrible. I hate her." Watch the craziness below!





Could this be the girl Adam ditched for Lindsay inside the club???