BRITNEY SPEARS IS ON TOP OF THE WORLD

By all accounts, Kevin Federline is serious about asking for increased custody of the two kids he has with Britney Spears, and early Sunday morning Spears' cousin/assistant Alli Sims and Spears' music producer JR Rotem were notified that they will be called to testify in the custody hearings.  Us magazine says:

They were approached early Sunday morning around 2:30 a.m. outside a party at a Hollywood Hills home and served with a deposition subpoena by Aaron Cohen of IMS Security, who, according to another source, is "one the top security guys in Hollywood."A visibly upset Sims attempted to avoid being served, and she and Rotem began to argue with Cohen. But, as an eyewitness reports, Cohen was not deterred by Sims' denials and was forced to throw the subpoena through an open car window as Sims and Rotem fled in a friend's car. Spears was spotted leaving the same party moments later and eventually joined Sims and Rotem at her Beverly Hills home.

It probably didn't help that Britney and her friends had to be served at 2:30am at a party in the Hollywood Hills, but Us goes on to say that Simms will be questioned about everything she knows in regards to Britney as a parent:

According to a source familiar with the custody battle, Sims' deposition gives Kaplan the ability to, "ask her about everything. What she feeds the kids, what's going in the bottles, how late they're staying up and about what Britney is like when she parties."

This pretty much has disaster written all over it if you're Britney.  Her only hope is to kill Alli.  Luckily for Alli, Britney is a retard, and any plan she hatches will be copied from stuff she saw on cartoons, so don't be surprised to see Britney in the ER this week covered in piranhas or painting a tunnel on the side of a mountain.