I guess I should have been more specific about the 'kitten' he is almost a year old and they get along fine. Sometimes cuddling and sometimes 'fighting' (play fighting, i think!) Both are cared for regularly by our vet and are in good health. The behavior is not 'new' but Kit Kat did need surgery after she ate a drawstring and a rubberband and this seems to be a result of that.
Since we have moved I havent noticed it as much but it really perplexes me why she prefers to go on my boyfriends clothes and side of the bed.
thanks for the help!