A teenager from a family known as the Colt 'incest clan' told school friends her sister was pregnant - but no-one knew which of her brothers was the father.
Twisted Frank Colt, who grew up on his father's inbreeding farm in New South Wales, Australia, was found guilty of raping his sister last week.
They have at least 14 kids with the parents all relatives of each other, reports claim.
After a gagging order on the shocking trial lapsed, the horrifying details of the trial have now been made public, the Mirror reports.
The case uncovered four generations of incest, with one of the teenagers having allegedly told classmates that her sister is expecting a baby with one of her brothers, however it is not known which sibling got her pregnant.
The Sun report that twisted Colt's teenage daughter told her classmate: “My sister is pregnant and we don’t know which of my brothers is the father."
Frank Cult, who was arrested for rape in 2018, was last week found guilty of sexually assaulting his 17-year-old niece, who was also his sister.
He took advantage of the victim, protected by a fake name Petra Colt, in the back seat of his car in 2015, reports the Daily Mail.
The woman had previously reported to police that she was living in a cult where "all my aunts, uncles and cousins have been sleeping together."
She also said that she had never been to school and was physically abused by members of her family.
Both victim and offender have the same father, Tim Colt, the perverted patriarch of the family who died in 2009.
The family managed to evade raising alarm bells with social services by moving from state to state, until locals noticed some of the kids didn't attend school
They travelled the country performing together, jurors were told.
Before his death, Tim had fathered seven children with his wife June, who was also his sister.
He had also fathered 12 other children by their daughter Betty and five children by his eldest daughter Rhonda as the family moved between rural Victoria, Western Australia South Australia and the Northern Territory.
Tim's youngest daughter had children to her brother Charlie, the trial heard.
In a statement tendered at Frank Colt's trial, inspector Stephen Radford described smelling urine and faeces in living areas and said there were no toilets or showers on the "commune-style living arrangement".
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