From yoga with goats to weddings for cats—America’s latest pet trends are wild. But the newest one? It’s something no one expected: pet tattoos.

Pet owners across the country are getting matching tattoos with their dogs, cats—even parrots. Not on the animals, of course—but on themselves. A paw print. A nose boop. A silhouette of their pet’s ears. Some even get tattoos of their pet’s actual heartbeat, printed from vet scans.

Social media is full of people showing off their ink with hashtags like #PetInk and #PawsForever. Some laugh, others cry. One man even got his late dog’s name across his chest: “He saved me, so I carry him always.”

Critics say it’s extreme. But for these pet parents, it’s a tribute that runs deeper than fur.