LONDON -- A British married couple were paid ?12,000 ($18,000) to make love three times a day for three weeks for a television documentary series, a newspaper reported Monday.And in what The Sun newspaper called a technological first, the BBC series on mankind filmed the act of love-making from the inside.Wendy Duffield, 31, had a stainless steel camera the size of a ballpoint pen fitted inside her. For some of the shots, her husband Tony, 38, also had a tiny camera strapped to his penis, the paper said."The crew would expect me to be ready to perform again after a five-minute rest but my body had other ideas, I'm not superhuman," the newspaper quoted Tony Duffield as saying.