London, Nov 27 : The "British Josef Fritzl," who admitted to repeatedly raping his two daughters and getting them pregnant 19 times, did the evil act to get child benefit payments, claims his sister-in-law.
The 56-year-old's relative said that he fathered nine children by the girls in order to support his lifestyle.
In order to boost his income through benefits and tax credits, the Briton once offered his younger daughter 500 pounds to have another child, the relative said.
"He would always have a roll of 20 pounds notes but everyone knew he had never worked a day in his life," the Telegraph quoted the sister-in-law, as saying.
"He claimed to have a bad back but tended an allotment and built huts in his garden. He obviously thought the bundles of benefits he was getting for the children was worth the risk and was not bothered about any pain it caused them," she added.
The man, who was sentenced to 25 life sentences, has shown no regret in prison and has even written to his daughters asking them to buy him gifts, she added.
"Can you believe he still wants the girls to pay for things like a pool cue, glasses and even an exercise bike," his sister-in-law said.
"He does not regret what he has done and even praises himself for fathering all those illegitimate children," she said.
The relative also described how her brother-in-law used to treat his daughters as if they were his wives in public - and bought them alcohol when they were as young as 12.
"At night he sat in the pub making sure one of the girls was always with him. When people used to ask why he had not got another woman after his wife left he would get agitated and say 'don't even go there'," she said.