Twiggy is a 10 year old female cat (adopted claw less...and now she has no teeth due to past infections) that gets along with all cats - in a few months we will be looking for a new friend her.
I forget if there is a difference or preference for adopting male or female cats based on the sex of the current cat.
One weird thing about Twiggy is that even though she has been spayed - she goes through regular periods where she exhibits sexual behaviours (rubbing, getting into a mounting positions etc.). She strictly indoors though - Leary of the outside.
Because of this we were thinking adopting a female cat might be best........
I didn't find the right solution from the Internet.