Lindsay To Paris: Take That, Hoochie Mama!

Lindsay Lohan's got a new man and let's just say Paris Hilton won't be happy.

We caught up with Lindsay at Dragonfly nightclub in Hollywood Sunday evening where several sources inside the club tell TMZ she was making out with Paris Hilton's ex-boyfriend, Stavros Niarchos.

Though Lindsay went to great lengths not to be seen with the Greek shipping heir outside the nightclub -- hiding behind a sheet and telling photogs to "f*** off and die" -- the two were all smiles when spotted together earlier that night. Lohan and Niarchos were photographed looking very flirtatious while hanging out at the Chateau Marmont, Lindsay's home, before heading to a concert at Dragonfly.

You'd think Lindsay would take great delight in sticking it to Paris Hilton, who has been somewhat instrumental in creating Lindsay's now-famous nickname, "Firecrotch." TMZ's video of Brandon Davis on a "Firecrotch" rant, Paris right by his side, is now firmly embedded in pop culture.