The Saturday Night Live star and the singer welcomed the animal into their home earlier this month.
“This girl, like, she was like, ‘I want a pig,’” he told Seth Meyers. “And then an hour later it was just there. You know what I mean? Like, I’m still trying, to get, like, a Propecia refill….This chick got a pig in a f–king hour.”
The duo named the pet Piggy Smallz; however, it looks like the little guy isn’t so little anymore. In fact, Davidson said the animal is “big now.”
“The first two days it was like really new and, like, didn’t move much. But then, now, it’s starting to bite and, you know, start to do stuff like [headbutt],” he said. “Because it’s a pig.”
Still, he has plenty of love for the newest family member.
“I love it,” he said. “I want it to get big and fat.”
In fact, Davidson showed his devotion to the animal by getting a tattoo of Piggy Smallz on his body.
“I don’t think,” he said. “I just kind of do.”
Watch the video to hear him rave about the loveable pet.
It’s certainly been a busy time for Davidson. After a whirlwind romance, the comedian proposed to Grande this summer, and the two have since moved into a $16 million New York apartment together. He’s also getting ready to start his new season of SNL.
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