A woman has spoken of her shock after she found out she could have over 100 secret siblings and may have accidentally dated her half-brother.
Chrysta Bilton grew up in Los Angeles in the US and it wasn't until she was 23 that she discovered that dad Jeffrey Harrison had fathered many more children besides her.
Jeffrey donated sperm to Chrysta's mother Debra in the early 1980s, who only told her daughter about her father, AKA 'donor 150', when she realised her eldest daughter Bilton could be dating her own half-brother.
