The Futa Parasite:
This Parasite eats one thing and one thing only,..Futa cum. Once inside a futa cock, the parasite will live inside its new host and survive off by eating any cum it can find, when eating cum, the parasite's size will increase, thus making the Cock it's living inside it increase as well. The only way to get rid of this parasite is to transfer it to another person. To do that the Infected Host will have to find a girl with a healthy futa cock full of cum and force her cock into the Host's urethra. The host will start the pennetration by moving her hips rapidly, forcing the healthy cock deeper into her massive infested cock. She will need to push it in and out constantly untill she has a strung urge to cum. She will then need to blast out any cum she has left in her balls in order to push the parasite out of her cock and into the other girls urethra. When complete, The cock should go back to it's healthy normal size, while the new infected girl will need to transfer the parasite to a new host.
-Birdway