There's just something so sweet about unusual sets of animal friends [1]. Take Bubba and Rue, for instance. Pit Bull Bubba needed a new friend, and his human totally came through for him, in the form of a tiny baby kitten named Rue. This New York duo look like two peas in a pod, despite their size, age, and breed differences. We may or may not have squealed a teeny bit at the video of Bubba affectionately licking Rue's little head. I mean, does it get any cuter? Scroll through to see some of their best Instagram snaps, and be sure to add them to your Instagram feed [2] for an extra dose of cute!