"I would like to get the world record," Watson told the Daily Mail. "Make sure no one else is going to break it. Get as many as possible. Within four years I would like to crack a thousand, if I can."
"My second wife knew I did it, and (that) I was never going to stop doing it. I think she accepted it. I don't know if she really liked it though. It's a bit weird even though it's all done in plastic cups."
Watson has two sons, aged 19 and 17, from his first marriage. He has a 10-year-old daughter from his second marriage.
Watson recently parted ways with his girlfriend of three years.
"She was fed up with what I do," he said. "She actually told me she despised it. I'm always running off here and there to donate, so it must have got on her nerves."
But Watson, who took over his parents' aromatherapy business before focusing full time on his donation business, has no plans of changing industries. He also said he's always willing to meet the mothers and children.
"I've got no plans on stopping as long as everything still works," he said. "I've got children all over the world now, and the parents are always so grateful."
