A lawyer who donated sperm to pay his way through college has learned that he has fathered an astonishing 70 children. More than 15 of those have already attempted to contact 33-year-old Ben Seisler. The donor confessed to his fiancée as part of a new reality show, Sperm Donor, that aired on the Style Network on Tuesday. Seisler donated sperm for three years while attending law school at George Mason, Virginia. He earned around $150 per donation.