Selkirk Rexes are usually good with other cats, and breeders and rescues alike describe them as among the easier cats to integrate into an existing feline household. Their tolerance is not indifference: a settled Selkirk commonly grooms companions, shares sunny spots and defuses tension by simply wandering off from brewing arguments.
Why Selkirk Rexes Behave This Way
The breed's social nature, easy-going with people and other animals alike, explains the fit. Selkirks have kept a flexible, unprecious attitude to company, and their playful style is inclusive rather than guarding: toys and games are shared more readily than in cats who treat resources as property. The resident cat's personality still matters more than the newcomer's breed, since a Selkirk arriving in the territory of a defensive, under-socialised cat will have a harder start than the reverse arrangement. Age mixing usually works well too, with a placid adult Selkirk absorbing a kitten's nonsense with notable patience and good humour.
Setting Up for Success
Introduce as you would any pair: newcomer in one room with its own litter, food and scratching post, bedding swapped between the cats, meals moving gradually toward the shared door. Let them see each other through a gate before free contact, and judge by eating, playing and resting near the barrier rather than by a single hiss, which is information, not failure. In the shared home, duplicate the resources that cause friction: litter trays at the one-per-cat-plus-one guide, feeding stations apart, and enough high and hidden resting places that neither cat must negotiate for a nap or queue for a sunny spot.
Signs the Arrangement Is Not Working
Persistent guarding of doors, food or litter, one cat's world shrinking to a single room, or stress grooming are signs the integration needs a reset to an earlier stage rather than more time at the current one. Most Selkirk pairings settle within a few weeks; a household still seeing daily ambushes after a careful month deserves a behaviour consultation. Also watch the Selkirk's dense coat in a multi-cat home, because a cat avoiding shared areas may also miss grooming attention, and its curls mat quietly when routines slip behind everything else that is going on. Sex and age combinations rarely predict success as well as temperament does, though two relaxed adults often settle fastest, and a kitten introduced to a patient resident Selkirk usually learns feline manners from the best available teacher in the house.
Deciding Whether the Fit Is Right
If you already have a cat and are choosing a second, a Selkirk Rex is one of the truly lower-risk additions you can make, particularly as a companion for a sociable resident. If your existing cat is a confirmed soloist who has rejected company before, respect that evidence over any breed's reputation, including this one's, and consider whether a second cat serves the resident at all before falling for the newcomer. When the answer is yes, KinsLe Family Sharing keeps both cats' profiles, feeding spots and litter arrangements in one place, so the whole household works from the same multi-cat plan.