Watch out for Lexie, she will melt your heart and you’ll never be able to un-melt it. Scientists can’t yet agree what the side effects of a permanently melted heart might be, since a dog this lovey has never before been seen in the wild. We strongly recommend you avoid crouching down anywhere in the vicinity of Lexie. If you do, she will climb into your lap immediately and it will be game-over for your poor heart.