Puppy love: Young boy and his French bulldog melt hearts this Valentine’s Day

A young Japanese boy named Tasuku spends quality time with his best friend, a French Bulldog named Muu. Tasuku's mother, Aya Sakai, documents the pair's relationship on Instagram and on Facebook.

In what's being called the "cutest Instagram ever," photos of a young Japanese boy named Tasuku and his best friend Muu, a French bulldog, have gone viral.

Every day, Tokyo-based mother Aya Sakai takes pictures of her son with his canine friend and uploads them to Instagram and her Facebook wall. The inseparable pair's adorable adventures — cuddling on the couch, watching TV, quietly playing, and even napping on each other — are melting hearts everywhere this Valentine's Day.

[ Photos: Boy and bulldog are best friends ]

"Probably the cutest thing I’ve seen in a long time…" admits Trendland's Cyril Foiret.

Check out Aya Sakai's heart-warming Instagram account here.

Warning: You might coo. Or sigh. Or end up buying a dog.