My 4 month old like to hump his daddy's arm and his daddy doesn't like it at all... he has tried to hump my arm couple of times which i stop it by saying stop he he does look up at me all puzzled as if asking me what? What did i do now.. i don't mind if he humps a stuff animal or pillow but i just want him to hump human... especially my husband
. Does anyone has have an idea how to teach him...