As Ty enjoys the pleasures of these women he thinks of something. What if they get pregnant. He doesn't want to be responsible for these kids so he transforms his sperm to be the sperm from that bully Darren who has been teasing him all his life.
Darren is a 6'10" 250# muscled guy. As he fucks the girls he makes sure that he is particularly potent.
Each of the girls becomes greatly pregnant and Ty finds that each one makes the octomom look barren.
As they grow more and more pregnant each one of them blames Ty and as they are tested not one shows paternity to Ty.
Needing bed rest the last couple of months the girls eventually give birth. So many have a curious resemblance to Darren and although the girls all claim that they were never with Darren an off chance was tested with one of the girls and Darren and there was a positive match. There wasn't even a doubt that all 8 of her kids were his.
The next girl was tested and she also tested positive for all 12 of her kids.
Over and over 9 kids were tested and proved to be his. There wasn't any doubt that he impregnated them.
All 10 girls had 107 children total all proven to be his.
They moved to Utah where he was allowed to marry all 10 women and raise his kids and the women took care of him and his kids.
Darren should have taken care of the women but they all got jobs and he took care of the kids. Each woman would have more children by Darren and of the Mormons he had the most children in his polygamous marriage.
But they weren't the only ones that became pregnant with Darren's children. Whenever Ty got amorous he would change his sperm to Darren's and have Darren make a quick visit back to his old town so that there would be a reason to believe that they were his.
Although he had been a muscled when Ty first got back at him his time as caretaker to his thousands of children took their toll on his body. His cooking was fattening and of course he had to taste test them so it started showing on his body. But that wasn't the biggest change that Ty had made to Darren. Taking on the female roll his hips started to round out and his man boobs began to become more full and saggy. Ty didn't want to turn him into a woman but have him take on more female traits in his looks. He let his hair grow long and would pull it back in a pony tail. He began to get a swagger as he got fatter and rounder to swing his hips from side to side. He would sit with his babies in his arms and sing to them and nestle them into his hairy breast almost as if he were breast feeding them. He did grow a beard but he kept it nice and trimmed as he did his hair. Just like a woman he worried about his appearance.
The girls would slap his ass as if they were tapping a hooters waitress and his wives soon numbered in the thousands. He was now just a piece of meat for their use and even though if the authorities tried to look at his micro penis and wondered at how he ever got any of the women pregnant they all tested positive and how could he deny it.