He couldn't help himself.
Ed picked up Jack and lifted him up to ride his cock to the hilt.
Passing out from the intense pain Jack was like a rag doll.
Ed lifted his little fuck puppy up and down till his balls began to churn.
It didn't take long. Ed was incredibly horny and as he shot his load he felt the weight of Jack filled with even more weight from his balls.
This was the first time in history that a man impregnated another man but when Jack woke up he felt Ed pressing on his stomach massaging the gut filled with sperm trying to get it to leave his friends belly with no success.
Jack looked like he was 9 months pregnant and this was just the sperm. His belly showed stretch marks and he was unable to sit up with the load he had taken.
Ed picked him up and put Jack on the toilet and attempted to press the sperm out of him.
The sperm worked it's way into Jack's balls and the massaging stimulated him causing the sperm to merge with Jack's sperm and moving back up into his stomach creating the first child to have two Y chromosomes. Not all his babies would have that but there were a significant number that did creating a new human.
The ubermale.
Jack's belly got no smaller the entire 9 months he carried the babies. As a matter of fact within weeks he was too big to move from bed.
They attempted abortion, going up through his anus to attempt the procedure but the found that there was an impenetrable wall that protected the babies. They also tried to do a c section but they found the wall encircled the children. Jack would have to carry the over ten thousand babies to term or die trying.
When the babies came Jack's ass became so stretched out it would be easier the next time Ed fucked him but the babies, particularly the ubermales, came with such quickness that within 5 days all children were born.
The ubermales were similar to Ed in that they could impregnate anyone but they also were very masculine. Some big bears some muscle men some extremely hairy but all had penises that were more than 3 feet long and this as their leg.
Ed was a proud papa and Jack was a proud mama.