how old is she. Is she scooting her butt on the carpet? Does she just rub the side of her but i people???? I think it is funny don't correct it just tell them that means she Really likes you! lol I am sure others will comment and give you advice on how to fix it. But if she is scooting her butt across the carpet/floor you might want to get her anal glands looked at to see if the fluid needs to be released!