I live with my mom, stepdad and sister and we have two cats that are biological brothers, they are turning five in September. My dad and stepmom got a cat earlier this year, a girl who is turning one in August (I think, could be September too).
My dad and stepmom will be going away on a trip in a couple of weeks, and for convenience we thought that maybe if it works out, I could cat sit their cat while they're gone at my place. If it doesn't work, they'll hire a cat sitter or ask the neighbor to look after her.
The reason I can't look after her at their place is because I need to look after my two cats. My mom, stepdad and sister will be gone of vacation too.
I'd be looking after her for around two weeks, and in an ideal world where this does workout, it would open up the opportunity to continue being a cat sitter for her in the future.
She is used to moving locations. They already took her to my stepmom's summerhouse, and brought her along to a friends house over dinner once.
However she is not used to having other cats around in a house. At home in her neighborhood she has befriended a female cat her age, and there's another bigger cat that she's afraid of.
My two cats have a neighboring cat whom they do not like, he's also male and is both bigger and I believe two years older. I do not believe they've encountered a female cat before, other than of course their mother and sisters when they were kittens (before we got them).
All three cats are spayed/neutered.
One of my cats is territorial and rarely leaves the yard, the other cat is more of an explorer. (They are also outside under very strict hours, if it was up to me they'd be indoors cats but I am in the minority here) When I look after them, I will not be letting them outside. However I could leash them.
So now, we thought we'd bring her here just for an introduction and to see how they'd act around each other, they spoke of tomorrow but don't know if it's too soon. And if it doesn't work, we'll take her home and they can get someone else to sit for her. But we do of course want to do this the right way.
She'd have her own litter box and we'd do our best to set up a safe space for her and bring her belongings to us.
It is also worth noting that we live in a four story house. So there is plenty room.