You'd be sexually abusing her and she'd be scarred for life.
Oh GODD dudes and dudettes give it a rest. Back then you were allowed to marry your own sisters . Game of Thrones great example yet all of you watch it :) . Still dude who wrote this society doesnt except such behaviour find yourself a girlfriend but get out of this fantasy. People will bully you and call you names and then emotionally scar you for life. So get a grip and man up.
go and take a ice cold shower
I have same problem. Kik me @ theamazingtino
noo thats not good at all :( & beside that u need help