Kevin Federline Parties with Colin Farrell's Ex

Kevin Federline acted like a man with something to celebrate as he partied up a storm at two hotspots Thursday night.

A day after meeting face-to-face with ex-wife Britney Spears over custody issues, Federline was spotted at L.A. club Vice hanging out with Colin Farrell's ex (and former sex-tape partner) Nicole Narain at Financially Hung's Black Card Party.

"They were dancing, she had her arms on his shoulder, she was clearly making advances," an onlooker tells PEOPLE about Narain, who says she made a beeline for Federline, who was wearing his trademark fedora when he arrived shortly after 9 p.m.

Federline, who recently said he's focusing on his acting career, thanked Narain for the dance with a kiss on the cheek before posing for pictures with Hugh Hefner.

Though they left separately, the dancing partners hooked up again at Opera shortly after 1 a.m. They weren't the only ones having a good time. Next to Federline, Leonardo DiCaprio shared a table with Entourage stars Kevin Connolly and Kevin Dillon. The real-life entourage didn't stay long, much to the dismay of the ladies lingering around their booth.

Re: Kevin Federline Parties with Colin Farrell's Ex

MAJOR LOSER!!!!!!!!!!!!!!!!