Donor 401 is a very popular guy. He's fathered at least 25 children by 18 women, and left them begging for more.
No one knows who he is, but it's common knowledge that he tans well, has German heritage, and shares a "warm relationship with his mother." Fairfax Cryobank ran out of his DNA, but a California woman scrounged up 17 vials and offered them to satisfied customers who want their kids to be full siblings.
The woman who had the extra sperm told the mothers that she had purchased the vials from Fairfax, but then didn't need it. The vials sell for at least $175 each. "It's just incredibly generous," said Leann Mischel, the mother of two 401 babies, who is thinking about a third. [Link]