I have this cat that when ever i try to sleep in my brother room,he comes in and gets on top of my back.Then he starts walking in place too.When i try to get him off he meows and trys to get back on.Also when i sit down and put him next to me to lay down,his paws thouch my leg and he starts moveing them on me then bites my pants and dose what he dose on my back.I always get jim off of me but he dose it again.What should i do?