Feeling satisfied from his huge meal, the boy happily tromped, half naked through the field, even venturing into the small woodland on the edge of his neighborhood. What had once been a scary forest was now an eye-level wonderland. The boy pretended he was Paul Bunyan, knocking over the tall pines with his bare feet.
Inside, his father was begging and pleading for escape, but the boy couldn't hear him, engrossed as he was in his imaginative play. Throughout the morning, the giant boy released humongous belches that tasted progressively more and more like meat. He was delighted as each thunderous burp scared flocks of birds out of the trees. After a while, he slowed down, finding a lake he had never before discovered. To him, at his new gigantic stature, it was the size of a pool. Stripping down to his skin, he jumped in, displacing so much water that countless forest creatures were swallowed up in a tidal wave and drowned.
Unbeknownst to him, his father, after spending an hour in his giant son's own lake - this one composed of digestive acids and enzymes - had recently drowned and was already melting into thick, nutritious goo, scheduled to ooze into the huge kid's winding intestines any minute now.
"Hey! This is fun. Daddy, I'm sorry I never let you take me camping out here. I guess I was just too scared, right Dad?... Dad?... Helooo..." The only response was a low gurgle emanating from his flat pale belly. "Huh... guess you're already on your way to my butt, huh?" The boy strained and then a huge eruption of bubbles rose to the surface at his back. He blushed as a formation of geese feel out of the sky overhead. "Heh! Sweet! Silent but deadly!" Another burbling eruption of ticklish bubbles. "Well... maybe not so silent. BUUUUUUREEEEEAAAAP!"
All afternoon, the boy delighted himself in the gaseous eructations that his dad caused. They smelled more and more like vomit, which his dad was becoming. Eventually, the gas his poor father was producing was directed downward, through a grisly network of undulating squishy piping that terminated at a giant butthole.
As the sun set, the boy became slightly worried about the dark, but soon found that his massive strength made rubbing two trees together an easy task. Enough friction caused smoke, smoldering, and then fire. Camping for the first time in his life, the boy began to fell timber and soon found he enjoyed the peace and quiet.
"You know, Dad, it's nice that you're being so quiet." FRRRRRT "Hey, quiet down in there!" FRRRRT "I mean it, Dad, you'd better sto...." FRRRRRBBBBBBBTTTTTTHHHHHTTTTT The boy erupted in giggles at his own joke and marveled as the methane stoked the huge fire he had built.
He soon fell asleep to the sounds of the crackling fire and of his father's own digestion deep within his innards. Inside a colon as big around as a manhole, the festering and solidifying remains of the unfortunate man were slowly slithering toward a... boyhole.
The boy wakes up in the morning and a rumble in his belly reminds him. He wants to find...
... some breakfast
... out what his father looks like now.