If he had eyes he would have shut with in content, he wasn't minding the petting at all, it was quite soothing in his opinion. The petentem growled softly as if at had been purring in reaction to the gentle action taken by the female. Treats were promised, maybe staying with this girl wouldn't be a bad idea, then again this girl had no idea what he was, he wasn't from the natural human realm. His own dimension's inhabitants were unable to appease him, he would see to giving this girl a chance in doing so. It was interesting to hear the way she spoke, as if he were a pup, no being would have done what this one did, getting near a petentem was a death sentence unless you were offering food. Still though, he did hunger and if this female would award with food then he'd be silent just this one time. 

Cassius growled when the human female referred to his temporal caretaker that way, it was obvious that she had a name, after all he had a name. But he'd do as told for now, his ebony black claws retracted back into his paws, the sharp spines on his back down to the base of his tail seemed to lay against his body on one side. He decided he'd at least make an attempt to clean himself, licking his front paws with his long, sticky, white tongue. Boredom was never a fun thing to experience and he was experiencing it, he was longer for a meal and sleep.