Sister in law gets bred

This happened in 1986. My SIL had been trying to have a baby. She got pregnant at least ten times but would naturally abort. It was found that her husbands sperm didn't mix with her. She was working in the office of a fire dept in south Fla. So her and my wife cooked up a plan. We went down to visit when her husband was not at home. They had me and two fireman over to the house. The plan was we would each jack off in a glass and she would draw the sperm up in a injector and shoot it deep in her pussy. And no one would know who knocked her up. My niece ? is now 27.