@Ame
In real life, they breed depending on where they live. If they live in a tropical place, they can breed the same amount that normal cats do. If they live in a temperate place, they breed seasonally. But females usually have litters every 2 years with the size of 1 or 2 kits and a high mortality rate. But that is usually because of predators picking off the kits.
Whoever gets this cat doesn't have to follow the actual way they breed if they don't want to.