Britney Spears's longtime companion Alli Sims was thrown in the middle of the popstar's custody battle early Sunday morning when she was served with legal papers. Sims was reportedly leaving a party in the Hollywood Hills at 2:30 a.m. when she was served with a deposition subpoena sent by Kevin Federline's lawyer compelling her to testify about Spears's parenting skills. "Alli was really shocked and covered her face," said an observer. "[She was] really distraught and said, 'Oh my God.'" Federline filed for primary custody of sons Sean and Jayden last week.source
