Make a new serum that changes the DNA inside So...
copier
· original author:
sonifan1
He thought that instead of him himself becoming Sonic’s reproductive system again but to go straight to changing the DNA of the sperm produced by the testicles. Though with his large member and testicles he waddled back to his ship and once inside worked in the lab. He started mixing chemicals together making a serum that was a white color. There was only one thing he needed to do left as he pulled a strand of fur from his body and dropped it into the serum where once it landed on the surface was instantly dissolved. The serum flashed a yellow color really quick before returning back to the color white. He divided the serum into two shots and placed them in an injection gun. He waddled back outside the ship and back in the testicle. He bent down getting closer to the flesh of the teste and went ahead and injected the serum into the flesh. He then went back to the ship and exited the testicle in order to enter the other one. He then landed his ship and once he landed he did what he did earlier and got out in order to inject the serum in that testicle as well. He decided to return to the previous testicle as he set up base there and now he just waited.

At first nothing was happening until everything around him and his ship was rumbling. Outside, Sonic’s testicles were pulsing furiously as the genetic material blueprint was changing and with this pulsing caused Sonic to groan in pain while shifting in his sleep. After some time Sonic’s gonads went back to pulsing softly and he went back to sleeping soundly. Tails noticed the rumbling subsiding thinking the change was complete. He needed to make sure it was a success and at that moment the testicles produced new sperm. Using his ship he captured a sperm cell and took it into his ship to examine it. He used a machine to do a full scan on it and the results revealed that the sperm cells contains fox DNA proving his serum was a success. To make a final touch he injected the leftover of the same serum that grew his reproductive system and sperm production into Sonic’s testicle as well. Since it travels through the system he didn’t need to use his ship to travel.

Back outside, Sonic’s member and testicles were receiving the effects of the other serum as his member grew slightly longer while his testicles started pulsing quickly again as they were growing to the size of watermelons. This time though it wasn’t painful as Sonic was still sleeping soundly. Tails just watched as Sonic’s testes were being filled with fox DNA sperm and he didn’t have to do anything anymore. “Well everything looks like things are going smoothly. Sonic is being filled with my little guys instead for the rest of his life... or at least when I decide to change it back. Although I can help as well if I want to. Now let’s see what Sonic does next”. It was then that...
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June 2, 2023