Details of Britney & Kfed's Seperate Vegas Weekend

Although Britney Spears and Kevin Federline were in Las Vegas on Friday, the former couple managed to navigate the social scene without running into each other.

While Spears, 26, relaxed and sipped water in a cabana at the Cinevegas party at the Palms Place, Federline drank Jack Daniels at Strip House only a few miles away. And while Spears's night ended early, her ex kept the party going past 3 a.m. at Prive Las Vegas, where he was honored as "Father of the Year".

Looking dapper in a black suit and red tie, Federline, 30, arrived at Prive just before 1 a.m. with an entourage of about 30, including his divorce lawyer Mark Vincent Kaplan. At a VIP table, Federline nodded his head to several hip-hop songs and paid little attention to the risqué fashion show that was happening on top of the club’s deejay booth.

At around 2:30 am, Federline headed to the back kitchen of the club, where he was presented with a “Father of the Year” trophy out of the public eye, an honor he told reporters "surprised" him.

Spears, celebrating Father’s Day weekend with her dad Jamie, ate fresh fruit and sunned herself for three hours Friday at the newly opened Palms Place pool. Later, she began her night with a low-key dinner with a friend and a member of her security staff at the Palms restaurant Nove, where she feasted on an artichoke dish.

After donning a short black cocktail dress, the singer attended the Cinevegas party with her father, Palms hotel owner George Maloof and his business associate Jon Gray. In a private cabana, Spears showed little emotion as she sipped water and chatted with her group for two hours.

Spears is reportedly staying the weekend in Las Vegas, while Federline is expected to head back to Los Angeles on Saturday to spend Father's Day with his children, including his sons with Spears, Preston, 2, and Jayden, 1.

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