It gets worse, the woman, who is due to give BIRTH next month, is devastated by the discovery that the father of her child is her brother.
The couple, who met at university, had decided they wanted to introduce their single parent families to each other before they got married.
But at the meeting it emerged they were brother and sister who had been separated as small children. The unnamed South African couple are still in shock after making the discovery last Saturday.
The country’s Sowetan newspaper reported that the siblings had been raised separately after their mother and father went through an acrimonious divorce.
It reported: ‘Their parents separated when the woman was eight months old and the man was two years old. ‘The man’s father said he dumped his wife in 1983 because she was cheating on him. The girl was raised by her mother, while her brother was raised by his father. ‘Neither of them knew they had a sibling.’ OMG!
They reportedly met again at university in 2007 and fell in love.
Their two families did not meet throughout their five-year relationship, until they were brought together last week to discuss wedding arrangements.
The couple said they had decided to split after hearing the news and were discussing how to handle the shock with their separated parents.
The man added: ‘We can’t think straight at the moment and will just take everything one step at a time.’
Incest remains one of society’s last taboos and is an unthinkable concept to most people. Yet research by the British Medical Journal showed that half of those separated from relatives at a young age experience strong sexual feelings when they are reunited.
Psychiatrists believe the natural repulsion brothers and sisters feel growing up together as children acts as an inhibitor to incest.
But those who miss out on this time can develop powerful, obsessive feelings for their sibling in adulthood.