A man has confessed he has developed feelings for who he thought was his ' sister ' - and doesn't know if he should act on it or not as it feels 'wrong'. While he was under the impression growing up he and the woman he thought was his sister were half siblings , a sinister and shocking truth from his step mum revealed they weren't related at all - as she'd cheated on his dad. Despite the shock of finding out he's not related to his 'sister' the anonymous man, 39, then confessed he now has