Cat is a year old. He was got as Ds's cat at 8 weeks (ds is 10) so from the start DS was cuddling him, playing with him, feeding him etc. now the cat will go to him for cuddles but not me or other DS. Also, DS(10) is the only one he does play fighting with. He will pounce on his feet or hands and they'll engage in this play wrestle that DS finds hilarious. Even if the cat is lying quietly on the sofa, as soon as he hears DS' voice he goes into play mode and will be all over DS. He doesnt do that for anyone else.
So does he think DS is his sibling or parent or something? Or are the rest of us just crap at being cat friends? 