Lonely holidays for Britney Spears?

It may be a blue Christmas for Britney Spears.

The singer has been looking forward to spending Christmas morning with her sons. But those few hours of toddler time could be in jeopardy now that her ex-hubby Kevin Federline's lawyer is threatening to ask a judge to take away her visitation privileges.

On Wednesday, Brit blew off a grilling that K-Fed's attorney, Mark Vincent Kaplan, was due to give her in the couple's child custody battle. Sure, she's done that before, but this was her first court-ordered deposition.

A gaggle of reporters and paparazzi gathered Wednesday at 10 a.m. outside the building where Kaplan has his firm. Spears' high-priced attorney, Sorrell Trope, did roll up in his Bentley — but without a client.

A little before 11 a.m., Kaplan came outside to announce that he'd been told that Britney was ill, The News' Soo Youn reports. The silver-haired, collar-pinned lawyer said Spears' said the "illness" was "described to me as a very general condition. I don't know what the condition is."

Britney's friend Sam Lutfi later told OK! magazine that "she's very sick with high anxiety."

Kaplan said the deposition would be rescheduled for another day, which he didn't specify. He also said, "I may exercise my right to ask the court for relief." That could mean asking Judge Scott Gordon to scale back the little visitation time Spears has with 2-year-old Sean Preston and 1-year-old Jayden James.

Meanwhile, the avenging angels at the Catholic League are riled by suggestions that Spears might play the Virgin Mary in a movie called "Sweet Baby Jesus."

"She is seriously miscast," fumed league president Bill Donohue. "She would be better suited to play the lead role in a flick called 'Monica' [as in Lewinsky]. If she did, the Catholic League would be delighted to send her a box of cigars!"

The group got their rosaries in a twist after the movie's producer told Us Weekly Spears was looking at the script for the Nativity satire. Spears, the mag said, "likes the idea" of playing Mary, a pregnant 19-year-old in Bethlehem, Md., who finds herself without a baby daddy as she goes into labor on Christmas Eve.

If it all comes to pass, Donohue says, "Let's just hope it doesn't open wide."

Britney Spears calls in sick for deposition

LOS ANGELES — Britney Spears was a no-show Wednesday morning at a scheduled deposition in her ongoing child custody dispute with ex-husband Kevin Federline.

A throng of news media and paparazzi was waiting for the pop star to show up at 10 a.m. Wednesday at attorney Mark Vincent Kaplan's office. Shortly after 11 a.m., Kaplan, Federline's attorney, said he had been informed that Spears was not coming.

Kaplan said he was told Spears didn't feel well and that she would give her court-ordered deposition at a later date.

Spears and Federline have been wrangling for months over custody of their sons, two-year-old Sean Preston and one-year-old Jayden James.