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."

Britney’s only hope now is for Ali to either disappear forever, or to develop a pathological condition that forces her to lie for Britney. TMZ says K-Fed is only after the money:

K-Fed is going back to court asking for more custody of the kids. Kevin Federline just agreed to a 50/50 split. Then, he turned around almost immediately and filed papers asking for 70/30. So why such a sudden change of heart?

Alli Sims, Britney’s cousin, was served over the weekend. Kevin’s lawyer wants to take her deposition. Now here’s what’s telling. Federline’s lawyer also wants to take Britney’s depo, but a source connected with Alli says the deposition notice Britney received is all financial — in other words, the references are all about money, not the kids.

When a guy does it, he’s only after the money, when a woman does it, she’s only doing it for the kids. Sexist. If Britney had not already proven her love for sex with a different guy every night, nearly substantiated lesbian rumors, been to rehab for drug and alcohol abuse, nearly dropped Sean Preston a few times, and put her children’s safety in jeopardy over and over again, then maybe the case could be made for K-Fed only being after the money. Of course he wants the money, and to make sure his kids are safe. K-Fed didn’t engage in a custody battle with Shar Jackson, probably because she’s a better mother than Britney Spears. Sad isn’t it? Who knows, once K-Fed gets the kids, Shar might help him raise his kids, and they will probably turn out better. Britney was raised by a pack of wolves, and look how she turned out. Wolves are so over-rated.

Britney Spears went shopping yesterday and conveniently forgot that a changing room is for covering your nudity. Is that a guilty expression on her face? Maybe she has her newest legal troubles on her mind.

We kept hearing about this escalation in the Britney vs. her Mom feud. With additional details surfacing, it’s getting uglier.

Apparently, Brit-Brit is in a snit-snit about Lynne’s friendship with Kevin Federline, Shar Jackson, et al, and is still fuming that her mom sided with Federline during the rehab/intervention and during custody wrangling.

According to X17, "a source" is confirming that Britney Spears is about to file a request for a restraining order against her mother, Lynne Spears.

Our source tells us that the paperwork is completed and that Britney is claiming her mother is abusing prescription pain medication and that she should be kept away from Sean and Jayden. The papers are supposed to be filed today or tomorrow.

Since Britney and Lynne are estranged, Grandma Spears has to visit the grandbabies when they’re with Federline. The restraining order, if it goes through, will stop those playdates.

In the topsy-turvy, Cheetos-fueled, head-shaving, nip-slip world of Britney it’s hard to tell whether any of it is true.

The strain doesn’t stop her from going out every night or shopping with her friends by day.

If Grandma is banned, who is watching those kids she’s so concerned about?

Shar Jackson (30) showed up at the Ratatouille premiere on Friday night with her four kids that are 16, 11, 4 and 2. Kevin Federline fathered the two youngest kids. With this many kids it’s easy to see why some might believe the story that Shar is pregnant again with K-Fed’s baby, but she’s so skinny in these pictures it’s obvious she’s not. Shar’s still young though, and no doubt she’s got another baby’s daddy lined up.

Shar Jackson has hired attorney George Gallegos in her fight against Star Magazine’s claims that she is pregnant once again with ex Kevin Federline’s baby.

Shar, who denies the mag’s claim, says her children are being affected by the rumors, and said through her rep, "When my kids hear things at school and then ask me if they are getting a new brother or sister, I have to put my foot down."

Shar says she is willing to prove to the magazine that she is not pregnant, and tells Star’s editor-in-chief, Bonnie Fuller, "I stand by my truth by offering you an EPT test if you stand by yours and reveal your ’source’ to me." Star Magazine recently said they were standing by their story.