Lori Loughlin Jokingly Tells John Stamos to ‘Move Over’ in Sweet Photo with His Son Billy

Lori Loughlin is spending time with John Stamos’ baby — and amatory it!

The Fuller House star — who plays Rebecca Donaldson-Katsopolis to Stamos’ Jesse Katsopolis on a array and a predecessor Full House — is gaga over a actor’s baby baby child William “Billy” Christopher, pity a image of herself cuddling a darling 5-week-old.

“Move over @johnstamos there’s a new child in town!” Loughlin jokingly captioned the proposal post on Wednesday. “Billy The Kid and he’s already hidden ❤’s! #iminlove

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RELATED: Dave Coulier Says Costar John Stamos Is “Going to Be an Incredible Dad” to Son Billy

Baby Billy has already met mixed members of the Full House family given Stamos, 54, and his new mother Caitlin welcomed him into their lives on Apr 10.

Last week, a actor shared a print of an darling impulse on Instagram where he hold Billy in his hands as Loughlin, 53, and Bob Saget focussed over him and smiled.

Billy, whose behind was incited toward a camera, wore a black onesie that review “Jesse and a Rippers,” a anxiety to a rope that Stamos’ impression Jesse plays in.

RELATED VIDEO: New Dad John Stamos Opens Up About Fatherhood and Reveals Which Parent His Son Looks Like

Loughlin — herself a mom to daughters Olivia Jade, 18, and Isabella Rose, 19 — raved about her TV father in February, revelation Megyn Kelly during an coming on Megyn Kelly Today of Stamos, “He will be a smashing dad.”

“We’re [still] unequivocally good friends. He got married,” she continued, adding of a 32-year-old indication and first-time mom, “[Caitlin]’s a smashing girl. She’s unequivocally good for him and I’m unequivocally happy for him.”