Just because they are kneeding on something furry doesn't mean they are trying to hump it, jeez. Houdini, who is a spayed female does that to anything furry, her target, Dylans little stuffed lion. It's because it's soft, that's the only reason. It's not because they are trying to hump it. Houdini even puts her face down low, and some cats may scruff it, but this shouldn't be confused with actually doing something sexual. And YES, cats CAN and WILL mate even if they are neutered.