Introducing two new cats to other pets

[TomHardysBitontheside]

We have 2 cats (aged 4) and a dog (10). We are getting two more cats (age 1). Any tips on how to integrate them?

We plan to keep the new pair in one room for a few days with food and a litter tray. Both pairs are siblings, so bonded with each other. We hope they will bond as pairs too. Our existing cats get on with the cats next door, and the dog is fine. But any suggestions are gratefully received.

That sounds like a good plan - limit exposure initially but not too much unless there is a real problem. They should settle down fairly quickly but every animal is different.