"Do you think this is going to be enough?" Susan asked Kate, eying a palette of giant barrels sitting outside Sonny's cabin.

"It should for today at least." Kate replied. "Come on, let's get these inside. He's probably starving, the poor thing."

Susan opened the door to Sonny's cabin and was met with a horrible stench as the rank air started wafting out. Kate dragged one of the barrels inside and set it next to the huge blob of Sonny, while Susan started bringing in the rest. He took his squinted eyes off the TV immediately and stared at the barrel. Drooling, he grunted as the robotic arms stuffed his face with cheese sticks and cake, while his ass parted to let out a heavy fart that ended with a splash in the toilet.

"Whew, you're really stinky Sonny." Said Kate, fanning her nose. "Oh well, look what Susan and I brought you!"

"Ugh... *URP*... f-fat..."

All of the barrels contained the fat and weight gain liquids the girls were mixing with Sonny's food. It was Kate's brilliant idea that Sonny start drinking it straight from the barrel, and in just a few weeks, Sonny was closing in on 10,000 pounds. Susan and Kate had succeeded in making Sonny a true mountain of fat, he resembled that more than a human. All of his features were swallowed up by the immense folds of sweaty blubber that surrounded him. His chest and love handles molded around his obscenely fattened limbs, camouflaging the folds of his arms against the folds of his body. The only real way to tell they were arms was by the deeply indented fingernails on the round blobs that were his hands. His wide ass spread out behind him in two giant mounds that formed a thick slab, slowly rising with each new pound of fat.

His blubber tapered towards the top, capping Sonny's mountain of fat with his food stuffed face and a mess of unkempt hair. His neck had all but vanished, hidden from view ever since the padding on his shoulders rose up to his ears. Many food stained chins sagged heavily onto his chest, while a pair of blubbery cheeks and a puffy forehead forced his eyes into a constant squint. Sonny had grown fatter than he even thought possible, but despite weighing almost five tons of blubber he still could only think of one thing as the robotic arms stuffed him... getting even fatter.

"*BURP*... Kate... n-need... fat..." He mumbled through food.

"Alright Sonny, just calm down." Said Kate, as she finished attaching a plastic tube to the barrel. "See? Now all you worry about is eating, okay?"

Kate pushed the tube into Sonny's mouth as it started to pump the fattening liquid, while one of the robotic arms came to hold it in place. The remaining robot arm started to feed him more of his favorite cheeseburgers. The burgers were getting drenched with the liquid as he chewed them into a wet paste, gulping endlessly. Concentrated solely on eating and nothing else, Sonny's gut started to rumble as he let out a trembling fart and began pissing himself.

"Ooohh... *FRRRRT*... so... good..."

Kate smiled at the literal mountain of fat Sonny had become.