While sons Sean Preston, 23 months, and Jayden James, 11 months, are away (with mom Britney Spears this weekend), it was Kevin Federline's turn to play... into the early hours of the morning.
Federline, who has kept a low profile as his child custody battle with ex Spears looms, hit the Venetian's Tao Nightclub in Las Vegas Friday night with a party of 25.
"He was drinking straight from the vodka and Jagermeister bottles," an onlooker said. "I didn't see him with a drink in his hand that much, but he drank out of the bottles a few times."
Federline and his group arrived at the club around 11:30 p.m. and had dinner at Tao's Loft before retreating to the club at 1 a.m., says a source. There, Federline, dressed in jeans and a yellow polo shirt, started the party with bottles of Jack Daniels, Grey Goose and Jagermeister.
Stationed at his VIP table, Federline chatted with a few of the girls surrounding him, and later migrated to the table full of women adjacent to his. "He was grinding up on a few of the girls," the source said. "He had a flashlight and was shining it on some of the girls around him."
Thoughout the night, Federline flashed his gold necklace to the deejay, DJ Reach, and even held up a cigarette lighter when the deejay played Jay-Z's "Big Pimpin'.
Smiling and chain-smoking throughout the night, Federline finally left the club around 4 a.m.