K-Fed Parties with Shar Jackson in Vegas

Now that Kevin Federline has been awarded full custody of the two sons he shares with ex-wife Britney Spears, it looks like the former backup dancer, who had been keeping his nose clean during the custody battle, can now let his hair down a bit. And who else to let loose with than the mother of his other two children, actress Shar Jackson.

The former flames were both in Las Vegas over the weekend and spent a good deal of time together. First, they relaxed away a Friday afternoon, catching some sun poolside at TAO Las Vegas. They were joined in K-Fed's private cabana by both of their parents, his brother and a few other family and friends. According to eyewitnesses, the entire party enjoyed Kobe beef burgers and sipped on Jack Daniels and shots of Patron.

And then the two were out and about again that night when Kevin joined Shar as she hosted a party to celebrate her 32nd birthday (which isn't technically until Sept. 4) at Blush Night Club inside the Wynn Las Vegas resort and casino.

While Kevin made an early exit from the party, he reunited with Shar later in the evening at Prive Las Vegas, where he took to the DJ booth to wish her a happy birthday in front of the partygoers.

Kevin and Shar have two children together, Kori, 6, and 4-year-old Kaleb, who was born after the wannabe rapper had left Shar to begin dating Britney.