The twins who were sold as babies for $10,000: Sisters start college back in America, 18 years after British couple bought them from ruthless mother in internet deal that shocked the world

Missouri-born twins Kiara and Keyara Wecker were just six months old in 2001, when Alan and Judith Kilshaw (right) from the UK tried to buy them over the internet for $10,000 The deal was already completed and the twins taken back to Wales when the Kilshaws realized a California couple had already paid to take custody of the kids through an adoption agency - all thanks to a scam perpetrated by their birth mother, Tranda Wrecker (left). The FBI got involved, sparking an international legal battle that finally ended with the children being raised by a third set of foster parents in Missouri. Now the sisters (center on their 16th birthday), who were brought up fully aware of their extraordinary story, have turned 18 and are studying social sciences at an American university, and their adoptive parents are speaking out about how they felt it was their 'duty' to give the girls a home