Caitlyn Jenner Will be a Grandparent for the Fourth Time

The Jenner family keeps growing.

Caitlyn Jenner’s oldest son Burt is expecting a child with his longtime girlfriend Valerie Pitalo. He posted the happy news to his Instagram with a sonogram photo of his unborn son. “I promised to wait until we had the ‘all healthy’ update, and we got it yesterday,” he wrote. “My Lil boy, just chillin…So happy I can’t see straight, he can’t get here fast enough.”

The new baby will be Caitlyn’s fourth grandchild, ninth if you count the Kardashian childrenMason, Penelope, Reign Disick and North and Saint West.

A photo posted by Burt Jenner (@bjenner) on

Burt is the son of Caitlyn and ex-wife Chrystie Scott, who she was married to from 1972 to 1981, right before Kris Jenner. He’s also been very supportive of his dad’s transition.

He previously told Esquire: “I’m very excited. Part of me was screaming to say, ‘Hey, I’ve known for 25 years and I’ve always been supportive!’ I always will be.”