Hamster .... This is something you stated ( sorry I don't understand how to do the quote stuff)

~~I already have three cats. Two are mine and one is a foster kitty. I have already talked to them about the possibility of having a baby: they said that if I continue to feed them well, they will accept a new arrival.~~~

Do you mean you talked to your cats about accepting a baby and they said if you feed them well they will accept a baby ?????????????????????

Really ? Seriously? I hope you are Ok ... I'm worried about you.