arent fathers allowed to be protective? arent brothers? then why not a bf/husband? i think it only shows that they care. dont get being protective confused with being controlling. one can be protective without overstepping any boundaries.
AE, sure as much as sisters or mothers or girlfriends or wives are allowed to be protective of their men. any more and it is sick.
besides, what is so special about anyone's sister? every girl is potentially someones sister. get over the whole insecurity of "oh i must watch out for her, she is my blood" BS.