Kansas City Chiefs tight end Travis Kelce was one of the stars on the field during a 27–24 AFC divisional round victory over the Buffalo Bills, but it was his brother who put on a clinic for how to be the ultimate super fan.

Philadelphia Eagles center Jason Kelce went viral after the first of two touchdowns his brother scored against Buffalo, as he stood hanging out of a suite shirtless and screaming in celebration while wearing a Chiefs beanie.

Chiefs fans loved it, the general NFL fans couldn’t help but enjoy it, and even Dallas Cowboys fans surely got a kick out of it. But the most incredible reaction may have come from Jason’s daughter, Ellie, who apparently had just four words to say to her mother when she saw her dad on television.

“Dads boobs are showing!” Kelce revealed his wife had told him via text after the Chiefs game.

The reactions to Jason’s viral clip were nothing short of spectacular, but Ellie may have taken the cake for her response to the incredible scene. Even Travis couldn’t help but laugh while admitting he wasn’t surprised to hear about his brother’s shirtless celebration.

The Chiefs’ tight end led all players in receiving, finishing with five receptions for 75 yards and two scores. Kansas City will now head to its sixth consecutive AFC championship game and is set for a showdown with Lamar Jackson and the No. 1 seed Baltimore Ravens.