My wife had told me that her friend from work, Beth, and Beth's husband Robert were having trouble starting a family. It seems Robert has a low sperm count and they both desperately want to have a child.
I told my wife that I would be more than happy to help Beth out.
My wife gave me a stare and said, "I bet you would."
"I am being serious, I would give Beth my sperm if they want a baby so bad."
My wife finally gave me a serious look.
"If you really mean that, I will tell Beth."
I told her yes, I meant it. My wife relayed the message and a few weeks went by. Eventually my wife came home from work one day and told me the news. Beth and Robert would accept my offer. This was her fertile time of the month and I was to stop by this upcoming Saturday. Of course I was told it would be very antiseptic lovemaking. Put my cock in, cum, then pull out and leave.
I went to Beth's house on the following Saturday. I was to go directly upstairs to the bedroom. Robert would not be there, in order to avoid any embarrassment of the various parties. I went inside the house and climbed the stairs. I looked into the bedroom and there was Beth, naked on the bed. The blinds were closed and all the lamps were off. It was pitch black, but I could still see her.