I have a question for experienced breeders. Can you breed a half brother and half sister? I was told that they do that in Europe all the time. I'm very confused on this matter. The reason I'm asking is someone sold me a cat and when she sent me the papers, I noticed that She has the same father as my stud. I was very upset. She then told me that they breed like that all the time in Europe. And that she would do it. I don't want to do something like that unless it is okay. I don't want to have a litter of defected kittens. I would really appreciate any help with this matter.