As the title says, looking for a story thats a bit of an odd one. It had a college guy who I believe takes some sort of supplement that makes his balls fill up with massive amounts of fattening jizz and when he ends up having sex with another coed she gains weight from him emptying into her. She likes it and ends up telling all her sorority sisters about it and he fattens them all up. They eventually turn on him and fatten him up as well. No idea on title or characters as it was a long time ago that I read it.