consider: victor is actually really allergic to dogs, and since makkachin is a poodle, he's one of the more hypoallergenic dog breeds. but victor still absolutely adores all dogs even if they set off his allergies so bad. so he'll just be sniffling and yuuri can't tell if his eyes are watery or he's actually crying because the dog he just saw was so cute.
HOLY SHIT my first ‘consider’ ask thing.
Yuuri would freak out whenever they go past a dog on the street like “Please god no just keep walking don- VIKTOR NO”
The watery eyes would probably be a mixture of both tbh