Hi all
It is nice to meet so many other cat lovers!

We need advice and help really as we are a little stressed!
On Saturday we picked up a 13 week old male kitten to introduce to our 5 year old female cat Missy! We got in on the basis of company for Missy as she used to have an older cat to play with in her previous home 4 years ago when she was a kitten.
Missy is a rescue cat but very confident, she sees other cats of her patch and is 99% of the time well behaved and loving although can at times swipe. She has free movement around our house and has about 10 different sleeping spaces that she changes all the time depending on mood! She is not a lap cat but at night will sleep on our bed but does not have a blanket!

We have brought the kitten home and set up his space in the kitchen with new litter tray, bed, toy, bowls and food. Misy has to go through the kitchen to go outside but it is not her space where she sleeps. She eats in a side room of the kitchen where her cat flap is.

We have made a huge fuss of Missy when she is in and outside, tried to mix the scents with the kittens blanket and made sure that when Missy is in she is the centre of attention. The kitten has mainly played in the lounge but on advice we have spread his scent around the house and let him look in each room.

Missy has been ok, she will walk around the house and not run off, sniffing loads and has slept in the bedroom as usual. But on face to face meetings she is hissing and growling still after 2 days.

They have met a few times either with the kitten in a cat basket and Missy watching or through a closed glass door. The kitten seems fine with Missy's scent but Missy is hissing and growling. She will sit in the room with the kitten there in the cat box but only to watch him!

She has never been a lap cat that will sit with you. She will sit on the window ledge or poof in the lounge but never on you or with you. It always has to be on her terms.

We are just worried that the hissing will not stop? The last thing we want to do is upset her but we think we have done the process right? The next plan is to have the kitten in the kitchen while we are at work and Missy in her room at the back of the kitchen with access to outside as usual when we are out, no change in routine. The glass door between the two may help them size each other up?

Help have we done this right, any advice?

Help?