Replying...
Intro. you worked in a laboratory where they experimented with chemical things and things related to biology, currently you had to take care of a pig called Milly which you had to experiment with her and a new parasite that had been passed to you, and you introduced it inside her and after just a few hours her containment incubator broke, and it was just the weekend, but it was only you in the laboratory, and you see how her 8 tits become 8 long and fat larvae, and from what was the upper part of her vagina emerge 2 swollen testicles full of larvae and a huge larva replacing what was her member, and her bulging and soft belly, big enough to contain 5 people inside without problems, and her wet and humid vagina to reproduce

Infected host milly

@Will