Steven Universe sighed, breath leaving his body, and then tensed up, feeling Greg Heffley's thin, ample fingers slowly touch and stroke his cock. Even if he stayed quiet, it's not like anyone could hear—they were totally alone in their house, with nothing to do but each other.
Another lightning bolt of pleasure shot up the chubby boy's body, making him gasp in pleasure. His whole body underwent a sensation of loosening, the relaxation washing over him like a benevolent ocean tide. Greg was totally skilled in handjobs, after all, he did have an older brother.
Greg's fingers slowly wrapped around his pudgy friend's foreskin-swaddled chode, his thumb laying atop the slit of his urethra. He rolled his fingertip around the head of his penis, swirling the viscous pre-cum oozing from atop his dick around the pale, soft skin of his glans.
His breath hitched as he heard a loud, obnoxious gurgle churning inside his stomach. His pink anus slowly dilated, and a soft, thick, brown log of shit slithered out of his ass like a hazel serpent. Greg smirked complacently, and slowly pushed a digit inside Steven's loose asshole. His breath hitched at the intrusion, muscles clamping around the squirming phalange, but Greg paid no mind to his shock.
He inserted another finger, then a third, a fourth, and a fifth, until all of his fingers were lined up in a row within his companion's rectum. Greg flexed his forearm muscles and moved his hand forward, entrenching themselves further within the sanctum of his lardy arse.
"G-Greg, don't—" the chubby boy whined, but he was interrupted by the smirking Greg saying:
"Don't say a word, baby. Papa'll make it aaallll better…," cooing reassuringly. He cupped his lips around one of Steven's corpulent tits, swirling his tongue around the rose petal-like nipple centered on the lump of squishy flesh.
The slimy tissue of his tongue rolled around the sensitive nipple, making Steven tremble, dual sensation of his stimulated breasts and violated anus making thick, pearly-white strips of cum spit from the slit of his cock, streaming down his shaft like penile drool, eyes rolling in the back of his head and tongue flopping out from his slackened lips.
Greg's submerged fingers suddenly seized onto something within Steven. His friend's eyes widened, and he let out a long, terrified yelp. Greg leisurely withdrew his hand, clamped around the young boy's lower intestine. Finally, the pink tubing ripped out of his asshole, digested sludge bubbling up from the putrid ropey tract. He gripped a large piece of his intestine between his teeth and violently ripped it off, munching hungrily and swallowing.
Steven's poor body couldn't register all three sources of startlement, and he underwent intense shock. His unhealthy heart would not mend itself, and he died seconds later.
