Patrick Schubing with his sister Susan Karolewski ( Image: cas.sk) Inbreeding brothers who fell in love and had four children together continue to call for an end to laws banning their troublesome relationship. Patrick Schubing was reunited with his younger sister Susan Karolewski more than 20 years after he moved into a foster home in what was then East Germany when he was attacked by their father. Six months after he rediscovered his biological family, the then 23-year-old and Susan, who is mentally disabled, began sharing a bedroom after the death of their mother, Anna Marie. The illegitimate couple gave birth to four children, two of whom are severely disabled. In 2001 the couple promised to change German laws that make sex between siblings illegal, which led to the Human Rights Court in 2012. Patrick served two prison terms for incest at the time. At the time, Mail Online quoted Patrick as saying: “We do not feel guilty about what happened to us. The couple has fought to change German incest laws ( Picture: cas.sk) “We want the law that makes incest a crime to be repealed. “I became the head of the family and I had to protect my sister. “She is very sensitive, but we helped each other in this very difficult period and eventually this relationship became natural.” Although he had already had a normal relationship with a woman, he insists: “We did not even know we did something wrong when we started sleeping together. We did not think of using a condom. We did not know that it was illegal to sleep together. “Our mother would not have approved it, but we are the only ones who have to judge us now.” Susan defended their union, explaining that they did not know each other when they were growing up, as her brother moved in at the age of three when their now-dead father attacked him with a knife. He added: “We did not know each other in childhood, it is not the same for us. “We fell in love as adults and our love is real. There is nothing we can do about it. We were both attracted to each other and then nature took us. It was so simple. “What else could we do? We followed our instinct and our heart “. Her brother underwent a vasectomy in an attempt to change the courts’ view to allow him to live with his sister without the risk of spending more time in prison. He added: “There is no reason for me to be imprisoned now. “I do not want to go back to prison and I know we will never leave each other voluntarily. “If anyone doubts our love, they should just see that we will not be separated.” Germany’s incest laws were introduced by the Nazis. There are currently 22 nations around the world that have not criminalized incest, including France, Argentina, Brazil, Japan, South Korea and Turkey. The practice is punishable by death in countries such as Afghanistan, Iran, Saudi Arabia, the United Arab Emirates and Nigeria. It is illegal in the UK, punishable by life imprisonment. read more Greenwich stabbing: Man stabbed in “violent act” with the killer still free read more Woman saves property by renovating the dirty slab and doing it herself for 16 £