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Join our community of cat lovers on the Mumsnet Cat forum for kitten advice and help with cat behaviour.

Cat introductions

13 replies

Crocidura · 02/05/2026 13:45

Just after some advice and hopefully some cheery success stories of feline friendship after a rocky start.

We got our 4 yr old as a kitten and she settled in fine with our then 12 yr (very chilled) cat. When he died we decided to get a new kitten and ended up with two brothers. We have had them around 10 weeks now and they’re 5 months old.

We spent the first few weeks with them in one room, where she could hear and smell them. We also did scent swapping with blankets. We would then bring them into a room where she was, always holding onto them though and staying at the opposite side of the room. She would initially just leave but seemed to be getting slightly more tolerant and could stay for a while. We graduated to letting them roam for short periods and we’re hoping the three of them will come to an arrangement but if she sees them she yowls, immediately leaves the house and sits outside looking sad. (They don’t go outside yet.) I thought we’d had a breakthrough this week when she went out and came back in again twice while they were out and about but she seems to have regressed again.

She is usually quite confident and bossed our previous elderly cat around, so we were expecting her to put the kittens in their place straight away, but she seems scared of them, even though they are not at all aggressive and tend to keep their distance. She does take a while to get used to any changes eg new bowl and is quite set in her ways and routine.

We are currently managing it by letting the kittens out to play while she’s asleep - she wakes up and leaves in a huff, we leave it for a bit and then put them back for a nap or they go and spend time in DD’s room or DH’s study and we call the older one in again.

Are we managing this in a sensible way and does anyone have any advice? Is there a point when you have to give up or will it sort itself out eventually? We have Feliway plug ins, not sure if they’re helping though. She’s not particularly food motivated and certainly wouldn’t eat if there was a kitten in view. I’m worried that the little ones will be ready to go outside soon and she might just leave at that point, if even the garden isn’t safe. They don’t fight or anything, the kittens bimble about, she sees one and yowls until she can figure out a way to get past to the cat flap and the garden. On the odd occasion they have bumped into each other accidentally, she swipes at them but they never swipe back. It’s like they’re expecting her to take charge but she is too scared. They do go all over the house now and she seems fine with the scent of them around the place but just can’t stand the sight of them.

We have had many cats and have made several introductions over the years but have never had a situation like this. Any advice welcome! I am happy to continue like this for weeks or months but would like to feel that it will all be ok in the end!

OP posts:
Notmeagain12 · 02/05/2026 13:54

Cats aren’t really a social species.

i think all you can do now really is let them get on with it and hope they learn to tolerate each other.

i had a similar situation and while they did eventually appear to get on, would cuddle together, groom, play etc, the stress behaviour showed in spraying, inappropriate toileting, and destructive behaviours. I tried to address if for years, but in the end got separate homes for them and it was immediately clear how much happier they were on their own.

i’d never have more than one cat again.

Crocidura · 02/05/2026 13:55

I forgot the tax.. here's the Special Princess

Cat introductions
OP posts:
Crocidura · 02/05/2026 13:58

And here are the Little Terrors

Cat introductions
Cat introductions
OP posts:
Crocidura · 02/05/2026 14:02

Notmeagain12 · 02/05/2026 13:54

Cats aren’t really a social species.

i think all you can do now really is let them get on with it and hope they learn to tolerate each other.

i had a similar situation and while they did eventually appear to get on, would cuddle together, groom, play etc, the stress behaviour showed in spraying, inappropriate toileting, and destructive behaviours. I tried to address if for years, but in the end got separate homes for them and it was immediately clear how much happier they were on their own.

i’d never have more than one cat again.

Thanks - I was hoping it would be ok, mainly because she has always lived with another cat and that worked fine. If I knew for sure it wasn't going to work we would rehome the kittens though. I wonder how long to give it - maybe over the summer as at least it's warm outside. I guess the decision will have to be made when the weather turns in the autumn.

OP posts:
sunflowersandsunsets · 02/05/2026 16:39

Personally I would stop putting the kittens away and just let them all co-exist in one space.

Crocidura · 02/05/2026 20:06

sunflowersandsunsets · 02/05/2026 16:39

Personally I would stop putting the kittens away and just let them all co-exist in one space.

Thank you - I am so worried she will just live outside and maybe disappear altogether once they start going outside. I have a load of shit going on in my life at the moment and ahe means such a lot to me. But I suppose at this point it’s either going to work or it’s not. I guess we can keep them in for a bit longer and see if things improve.

OP posts:
sunflowersandsunsets · 02/05/2026 20:08

I get it's upsetting but she won't have a chance to adjust to them being around if they're always put away or only come out when she's asleep.

Crocidura · 02/05/2026 20:25

sunflowersandsunsets · 02/05/2026 20:08

I get it's upsetting but she won't have a chance to adjust to them being around if they're always put away or only come out when she's asleep.

Yes I do see that. I’m wondering if there is a way to help with adjusting. Right now if she sees them she just goes straight out the cat flap and sits outside the back door looking pissed off until I call her in when they’re not around. It doesn’t help that they never seem to stop dashing around - I don’t think they’ve slept when roaming free, even when they’ve been out and about for several hours. Maybe we just need to go hardcore and she’ll have to come in when she’s hungry, even if it takes a couple of days. Not sure my nerves will stand it 😬

OP posts:
sunflowersandsunsets · 03/05/2026 08:32

Crocidura · 02/05/2026 20:25

Yes I do see that. I’m wondering if there is a way to help with adjusting. Right now if she sees them she just goes straight out the cat flap and sits outside the back door looking pissed off until I call her in when they’re not around. It doesn’t help that they never seem to stop dashing around - I don’t think they’ve slept when roaming free, even when they’ve been out and about for several hours. Maybe we just need to go hardcore and she’ll have to come in when she’s hungry, even if it takes a couple of days. Not sure my nerves will stand it 😬

Can you not lock the cat flap for a while (not for days or anything, just an hour or two) so she has no choice but to start socialising with them a bit?

Crocidura · 03/05/2026 13:35

sunflowersandsunsets · 03/05/2026 08:32

Can you not lock the cat flap for a while (not for days or anything, just an hour or two) so she has no choice but to start socialising with them a bit?

Yes that’s a good idea, thanks. We are also planning a Jackson Galaxy technique of occupying her at one end of the room and a kitten at the other - kitten will be by the door too, so no easy escape for her.

OP posts:
sunflowersandsunsets · 03/05/2026 14:02

Crocidura · 03/05/2026 13:35

Yes that’s a good idea, thanks. We are also planning a Jackson Galaxy technique of occupying her at one end of the room and a kitten at the other - kitten will be by the door too, so no easy escape for her.

Sounds good. I would also give her places up high to jump up to if she's able - but keeping her in the same space. We've introduced lots of cats to each other over the years and while they get the huff initially, they've always been fine eventually.

Crocidura · 03/05/2026 15:28

sunflowersandsunsets · 03/05/2026 14:02

Sounds good. I would also give her places up high to jump up to if she's able - but keeping her in the same space. We've introduced lots of cats to each other over the years and while they get the huff initially, they've always been fine eventually.

Thank you - that does give me hope! I think she just needs to plot a couple of escape routes and learn that they’re really not that interested in her and she could easily dominate them if they were (for now at least). But you’re right that I am not giving her the opportunity to do that. I will toughen up a bit, stop mollycoddling her and hopefully she will figure things out 🤞

OP posts:
sunflowersandsunsets · 03/05/2026 15:34

Good luck! I hope it works out. Our oldest cat can be a real contrary bugger but we've introduced three cats to him over the years and he's softened up with all of them eventually Grin
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