Brittany Mahomes is sharing the sweet origin story of her beloved dogs, Steel and Silver.

“I mean, they’re basically our children,” Brittany, 28, tells PEOPLE of the pups, who work with celebrity dog trainer Tom Davis. “I consider us having four kids,” she adds.

The Sports Illustrated Swimsuit model shares daughter Sterling Skye and son Patrick “Bronze” Lavon with the Kansas City Chiefs quarterback Patrick Mahomes.

Before they became parents to Sterling and Bronze, Brittany says the couple became dog parents during her junior year of college at the University of Texas at Tyler, where she graduated with a degree in kinesiology in 2017.

“I actually got Steel when I was in college. Patrick bought him for me for a Valentine’s Day gift when I was a junior,” the KC Current FC owner shares, admitting that the Pittsburgh Steelers inspired Steel’s name.

“So, I actually used to be a Steelers fan and that’s how I got the name Steel, so that’s a great story,” says Brittany, who recently announced a partnership with PetSafe alongside Davis.

Brittany and Patrick adopted Silver a couple of years after welcoming Steel. “I think it was back in 2018 after Patrick’s first year in the league. We decided we wanted another addition,” she explains.

Both dogs are “wild and full of energy,” says Brittany, who has grown up around dogs her entire life. “I’ve always had a dog in the house, ever since I can remember. Even my parents split, and they both ended up having dogs, so I’ve grown up with dogs. I’ve never lived in a house without a dog,” she shares.

Still, Brittany and Patrick turn to Davis’ expertise to keep Steel and Silver prepared for the fast-paced lifestyle of NFL pups.

“We’ve been working with Tom for several years, and he’s the best fit for our family and dogs. I would say it was about 2019 or 2020, within about a year of us having Silver because she was a handful, and then we got introduced to Tom through a friend of ours who used him as well. And we’ve been using him ever since,” says Brittany.

Brittany Mahomes for PetSafe.Petsafe

Brittany and Patrick fly Davis out to Kansas City to work with Steel and Silver occasionally, which “just shows how much they love and care about dogs,” Davis tells PEOPLE.

“What I find endearing about both of them is that it’d be really easy for them to write off different things if they wanted to, but they don’t,” Davis shares, citing the couple’s busy lifestyles.

Brittany says having a trainer work with the dogs helps everyone stay calm and collected because “We do kind of go back and forth in the off-season between Kansas City and Texas, so the changing environments get a little overwhelming for them.”

Through her partnership with PetSafe, Brittany says she can feel confident that her dogs are safe and healthy while they explore outside in Texas and Kansas City.

“We live on a lot of property, so taking them out and about to just explore our property and let them kind of free roam has probably been one of their favorite things to do,” says Brittany, who now utilizes the PetSafe Guardian GPS + Tracking Dog Fence Collar to create a customizable fence to alert her if Steel and Silver go too far.

Davis says the GPS tracking device allows users to “manually set a fence anywhere you go with your dog, so you don’t have to dig fence posts, you don’t have to worry about where your dog is. You can literally be cooking dinner, put your phone up on the GPS app that PetSafe has, and you can see exactly where your dog is.”

Brittany and Patrick have begun utilizing the Guardian GPS + Tracking Dog Fence Collar for Steel and Silver, which has helped the couple adjust to their family’s expanding needs. “When they roam around our property, we know where they are at all times, and we can create boundaries if we need to. It is super easy on our phones through the app. Their safety and health is super important to us,” she explains.

“Now that we have two kids in the house, we’ve got to entertain everybody, so getting the dogs outside and their exercise and work in daily is pretty important.”