just do it. people dont like it, well fuck them. to me, for every one person who dosent accept you, there at least one who does. as for your sister, she cant stop you. you wont be dis-owned from your family. youll still be loved. its no different than telling people that you smoke ganja. they might not agree with it or think its wrong, but your still their child. id rather be unliked than be living a lie.