They say they started having sex by curiosity, then it became a bit obsessive, friends and family started to noticed something different between them so they decided to stop and start seeing other people. It only lasted a few months because dealing with each other's boyfriend and girlfriend was very difficult for them and more revealing of their feelings for each other. They started again and every day was harder and harder to keep the secret from the family until they didn't care about it any more and when public.