It'll Be a Boy for Chip and Joanna Gaines

Chip and Joanna Gaines' touching sex reveal for their fifth child starred a very special guest named Gage

Chip and Joanna Gaines are seeing blue!

The Fixer Upper couple are going to add a son to their household, Chip announced on Twitter Wednesday alongside a sweet clip featuring a little boy named Gage, taken over the weekend during their attendance at a golf event for the Tim Tebow Foundation.

In the adorable video, Chip jokes in his explanation to Gage that he and his wife are about to have another baby — their fifth child — because “Uncle Chip has lost his mind.”

“I can’t think of a D-name. Can you help me think of a D-name?” he asks Gage, who replies, “A boy?” — a great guess, considering the couple’s sons Duke, 9, and Drake, 12.

“A boy! Is that a secret? I don’t know — that might not even be allowed on Twitter,” Chip jokes, telling Gage, “You better keep that to yourself, dude!”

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The spouses’ “amazing weekend” spurred an Instagram gallery featuring photos of them together and with football star Tim Tebow — plus one snap taken on a beautiful sunny day on a golf course, where Joanna’s bump is just visible under a white shirt.

“What an amazing weekend with the @timtebowfoundation ✨,” she captioned the post. “Thank you for giving hope and love to so many #ttfgolf2018”

Joanna Gaines/Instagram

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The spouses — also parents to daughters Emmie Kay, 7, and Ella, 11 — announced their little one on the way in early January, with Chip sharing a photo of the couple cradling his fake baby bump while Joanna shows off hers under a gray sweater.

“Gaines party of 7.. (If you’re still confused.. WE ARE PREGNANT) @joannagaines,” he captioned the hilarious post.