A young couple have revealed how they fell in love after meeting at a nightclub, moved in together, had a child – and then discovered they were, in fact, half-brother and sister.
The extraordinary discovery was confirmed by DNA testing just last month. It has left the couple stunned and shaken – but they are nonetheless vowing to stay together and have more children.
link-->Couple discover they are siblings: Child courts blamed after strangers fall in love, have a son - and then find out they are half-brother and sister | Mail Online
Well what are the chances of you hooking up with your sister without knowing.