Pete Davidson‘s only sibling — a younger sister — doesn’t have kids but that doesn’t mean he can’t be anointed an uncle!

John Mulaney did exactly that, and the “SNL” star couldn’t look any prouder hanging out with Mulaney and Olivia Munn‘s 2-month-old son, Malcolm. Mulaney shared the sweet moment Friday with a couple of Instagram Stories.

READ MORE: Olivia Munn and John Mulaney's Son Malcolm Has a Play Date With Henry Golding's Daughter Lyla

In the first picture, a proud Davidson is looking down at Malcom, who appears to be having a ball with his “Uncle Pete.” That’s the text Mulaney added to the Instagram Story, which is accompanied by the “F.U.N. Song” from “SpongeBob Square Pants”.

The next Story’s a video, and in true comedian form, Davidson can’t help but crack a joke that triggers laughter from the new parents. “Yeah, babies are all head. They’re like, all head,” Kim Kardashian‘s beau quipped.

Photo: Instagram/ JohnMulaney
Photo: Instagram/ JohnMulaney

READ MORE: Olivia Munn Rings In The New Year With Adorable Picture Of Her And John Mulaney's Son

Photo: Instagram/ JohnMulaney
Photo: Instagram/ JohnMulaney

The hangout comes just after Malcolm made fast friends with Henry Golding and his wife, Liv Lo’s, daughter, Lyla. Munn took to Instagram to share the pics showing Munn and Lo holding their babies. In another pic, Lyla gives Malcolm a kiss on the head.

READ MORE: Olivia Munn Shares New Photo of Baby Son Being Snuggled By Dad John Mulaney

“Malcolm met Lyla today,” Munn captioned her post.

Golding and Lo welcomed their daughter in March 2021. When ET spoke to the 34-year-old actor two months later, he gushed about fatherhood.

“She’s a great baby,” he said. “… Literally every single day she changes. Something new comes out, she looks at you differently, she smiles. It melts your heart.”

Munn and Mulaney welcomed Malcolm in November 2021. The couple shared the first pics  of the newborn shortly thereafter.

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