My cat will lightly bite me when he hears kitten noises

I noticed that if I’m watching a video with little kittens in it, my cat will: stop what he’s doing and come over to investigate. He will look for the kittens and then he sometimes will bite my hand or arm.

He’s a fixed male cat who hasn’t been around kittens since he was a kitten.

Is this a paternal instinct?

Also, since his litter mate bonded brother passed away last month, he’s been the only cat at home. He’s very spoiled by me but I plan on getting a new kitten in 8 weeks. Do you think his paternal instinct or the way he’s curious about kittens might make him decent or happy to be around one? The new kitten will be 12-13 weeks old.