Rod wakes with a start and realizes that he isn't just dreaming of filling the Chad sex doll he is actually doing it.
His cock isn't attached to Chad's mouth but he is unable to remove himself from the incredible pleasure of the blow job that he keep pumping his hips into Chad's mouth.
Chad the sex doll had been a rather limp rubberized shell but as Rod pumped more and more seed into his he began to fill out.
But Rod was becoming dehydrated. His face became drawn and gaunt. Where he had a nicely muscled torso his ribs began to show. His legs and arms became as thin as skeletons.
No Rod didn't die but when he finally released from Chad his cock had shrunk to the size of a nub and his body was incredibly thin.
Chad tried to move but his body was almost all liquid. It wasn't full but all he could muster was a bit of a roll as if he were a slug or a snail trying to move off the bed.
That was when Bobby came in.
Bobby was a quite rotund boy. All the jocks made fun of him and the girls never gave him a notice.
Rod had long since gone when he saw the gelatinous Chad rippling on the bed. Fortunately Chad's head hung off the side right at the perfect level for Bobby to stick his nub inside Chad's lips.
Once again Chad began to suck the participant but Bobby having such a small cock in the first place the drain was first on the fat that he carried when his cock popped out of Chad's mouth.
He looked at his body in the mirror and all that was left was muscle. His skin wasn't even sagging from the years of being obese. He looked like a Greek god not that that would help him if he didn't change his ways but for now he was sexy.
Bobby knew several other fat friends and even though they didn't believe it was him at first they each in turn used Chad filling him till he looked like an over filled waterbed.
Chad would look very different if he was ever able to turn back to human.