This is something that could only happen at a zoo or preserve. This took place at Cheetah Experience in Bloemfontein, South Africa. Kinji the Cheetah loves the meerkats at the conservation center, but the meerkats, well, they don't like anyone. And they can be pretty fierce for their size.
See, the meerkats are protecting their family from a dangerous predator by attacking Kinji whenever he comes around. To Kinji, it's a fine little back scratch from his little friends. He just purrs and enjoys it. Dolph C. Volker of the center says,
A cheetah purr is quickly becoming my favorite sound in the world... so relaxing, calming, and something that penetrates the psyche down to the rudimentary soul for me. A purrs is designed to calm tensions; letting others around them know a friendly cat is present.
-via Tastefully Offensive