An amazing video gives a fly-on-the-wall view of an unexpectedly intimate relationship between Peanut the rat and his feline housemate.

The rat even shuns his faithful cousin to pursue his usual foe. The cat and mouse chase doesn't last long and persistent Peanut slowly wins over its feline friend.

Ranj relaxes out on the mat with his new-found friend climbing all over him.

The victorious rat claws the cat's neck in a playful embrace, licks him and even appears to give him a kiss.

The owner describes the relationship on Yourtube as: "Rat loves cat... cat tolerates rat. A really cute interspecies relationship. My rat, Peanut, follows Ranj around everywhere! She gives him kisses and hugs."