One of my poor cats (he was my 'baby') got extremely jealous and even now, 3yrs on he resents my kids. He has become very much an outdoor cat nowdays. And will happily cuddle up to DH, but will only come near me occaisionally and then will disappear if the kids come over. I have to watch him with the kids - he won't go out of his way to hurt them, but if they approach him and annoy him he will scratch.

My other Cat on the other hand LOVES the children. He will seek them out to play with them and They can do whatever they like to him (and DS gets quite rough) and he won't bat an eyelid.

unfortunately cats are like people - how they react depends so much on their personality. My advice is to watch them carefully and take your lead in dealing with your cat off their behaviour.