Matthew Stafford; Jason Kelce. Photo: Ronald Martinez/Getty; Robin Marchant/Getty

Matthew Stafford has some words of wisdom for Jason Kelce as he gets ready to welcome his fourth daughter.

The NFL player, 37, appeared on the Wednesday, March 12, episode of Jason’s podcast New Heights, which he hosts with brother Travis Kelce, and was asked by the former Philadelphia Eagles player if he had any advice for him about having a fourth baby with wife Kylie.

Stafford, who shares daughters Chandler and Sawyer, 7, Hunter, 6, and Tyler, 4, with wife Kelly, told Jason to “buckle up.”

“No, it’s a blast man. We saw each other not too long ago, and we were talking about it,” Stafford said. “We’re rocking and rolling, we’re in leotards all the time, doing gymnastics around the house.”

Jason Kelce Says He May Get a Vasectomy After Wife Kylie Welcomes Baby No. 4: ‘This One Might Be It’

“At this point, I’m like, I don’t even know what I would do with a boy,” said Stafford. “I can’t even wrap my head around it. I’m all in on the girls.”

“Changing a diaper with a nutsack there just feels like it would be weird,” joked Jason. “I don’t want to be a part of that.”

Jason is already dad to daughters Wyatt, 5, Elliotte, 4, and Bennett, 2.

In February, Jason spoke about his favorite part of being a dad as he marked the second birthday of his daughter, Bennett.

“Benny, she is so funny right now, and she’s at that age where she responds and can talk, but she doesn’t always know what she’s saying,” Jason said. “And it’s just adorable.”

He added, “It’s fantastic to interact with her on a daily basis. Seeing the learning process and, like, the curiosity of a child all manifesting, that’s probably my favorite part about being a parent is just watching a child figure things out and being there with them while they’re doing that.”

“And, like, how amazing something as simple as, like, figuring out how to open up the fridge … there’s gonna be something that just blows her mind that you take advantage of every single day as a grown-up,” continued the retired athlete.

“And you’re like, ‘Oh my God.’ This just made this little kid’s entire day figuring out how to screw unscrew a water bottle. Right now, that’s all she’s doing the rest of the day, and it’s like the best thing ever.”