Duncan is doing great. Except I think you made a huge mistake and sent me a dog when I asked for a cat. :-)
 
I have never had a cat so friendly and so into everything. He likes to go everywhere. Explore everything. Eat anything and everything (he is a bottomless pit). He is afraid of nothing. He likes to meet and play with everyone. Play with everything he can get his paws on. Even store bought toys. What cat plays with store bought toys? Favorite illicit toys: Kleenex tissues, my hair, my house plant (so far tin foil and cayenne pepper can't keep him out.) He loves to be picked up and cuddled and held. Even carried around the house. All other cats I have known acted like that was an affront to their dignity. He licks my face while I hold him. He likes me to hold him for an hour or two after his dinner. He takes his after dinner bath in my arms, and then his after dinner nap. He is still so tiny, I hold him with one arm, and try to go about my business with the other. Are you sure he is a kitten?
 
Riley is ok with this now. She started out completely freaked out and growling. Then she figured out what he was, and was just mad, and started hissing. Then she got curious. We have finally reached a state of tolerance. No more growling or hissing. And they are playing together. They play chase, and they wrestle so far.
 
 
This is Riley just sharing and tolerating.