David Arquette, Christina McLarty are reportedly expecting a baby

David Arquette is reportedly going to be a father two times over: His girlfriend, Christina McLarty, is said to be in her fourth month of pregnancy.

Arquette, who’s been on and off with “Entertainment Tonight� correspondent McLarty for two years, has allegedly been bragging to friends on set about the baby, TMZ first reported Tuesday. He’s working on a movie in Vancouver, the site said.

A source told Us Weekly that the couple had been trying to keep the news quiet. The pregnancy “came as a surprise,� a source told the mag, adding that the mom- and dad-to-be were both happy.

Arquette, 42, is already father to Coco, 9, his daughter with ex-wife Courteney Cox. Cox and Arquette’s divorce was finalized in May.

It’ll be the first child for McLarty.

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