"Travis is the perfect uncle," the Philadelphia Eagles center exclusively told E! News at Thursday Night Football's red carpet premiere of his new documentary Kelce in Pennsylvania on Sept. 8. "He really is."
As for what makes the Kansas City Chiefs tight end deserving of this title?
"I know we give him crap. We will not leave him alone with them. They're too young," Jason—who shares daughters Wyatt, 3; Elliotte, 2; and Bennett, 6 months, with wife Kylie McDevitt—continued. "But Travis just has such a zest and virality for life."
And he noted his kids are their uncle's biggest fans.
"My daughters, they're so drawn to him immediately—partly because he's gorgeous, but then also he's just a fun human being," the 35-year-old said. "He's exciting. He has energy for days."
Indeed, their mom, Donna Kelce, indicated there's no play Travis won't complete to make Jason's girls happy.
"He'll get down on the floor and he'll crawl into a dollhouse," she told E! News. "He does whatever they want."
Ultimately, there's a lot of love in this squad, and Jason loves being a girl dad.
"We had zero girls in the household growing up other than mom, so it was a very testosterone-dominated household," the athlete shared. "But my girls are so young right now. And I only have girls, so I don't know what it's like to be a boy dad really. All I know is a girl dad. And I love my girls. I love my children. They teach me things sometimes when I think that I'm trying to teach them."
"For instance," he added, "I'm reading the kids' book, Oh, The Places You'll Go! [by] Dr. Seuss, and it's in the documentary. And I'm like, 'I feel like I'm getting more out of this than the kids are right now.'"
And becoming a father has given Jason a new perspective on life.
"I think children look through the world differently, right?" he said. "They're very open to the world around them, gathering everything in, and they have no preconceived notions. And I think looking at it, my children experiencing life, causes you sometimes to look at the world differently and not take for granted little things that you pass by every single day."
Fans can catch Jason and his family members in his documentary Kelce, which premieres on Amazon's Prime Video Sept. 12.
— Reporting by Nikaline McCarley