So my cat somehow got pregnant without my knowledge and when I came home from work there were kittens everywhere! What do I do with the kittens? My sim doesn't want that many fluffy frisky kitties.
You can go into household management and distribute the extranious kitties to other households. I did that with a puppy one household didn't want/need and chucked him in with one of my families.
Oh. And may I recommend spaying or castraiting your adult pets? Its reversable if you need it.