A wild Rapidash is galloping down a long rocky beach on a bright day. With a flick of her flaming tail, she lays down near a flock of Wingull's while watching the waves drift in and out. A short distance away, a large sewer drainage pipe drips a green slime, slowly turning purple. The Wingull's fly away while her ears perk up, she sniffs the air as a stench wafts through her nostrils with a raise of her head. A large oozing Muk stare's down at her with a face of puzzlement, jumping back onto her hooves, her burning mane rises as she widens her mouth for a flamethrower.

Muk takes notice to this as he quickly power-up punches his arm down her throat, causing her belly to inflate with the backed-up flamethrower. Her eyes widen as the skin of her stomach tightens while Muk liquefies his fist down her esophagus, filling her with himself as she tries to spit him back out. Subtly bloating her out with liquid ooze, Muk's body shrinks as Rapidash expands outward with a loud pop of her navel. With only a quarter of his body still stuffing itself into her maw, she stands on her hind legs with the jiggle of her painfully rounding girth as the last of the purple sludge seeps in. Lowering her hooves back-down, her belly button rubs the sand as she groans loudly. Now pregnant with Muk, he churns himself around inside of her causing a wicked tummy ache - it's super effective.

She lets out a harsh nay in both pain and fear as a shiny green Muk makes its way down the beach in her direction. Standing back up on her rear legs in a noisy gurgle, she bounces herself straight up into the sky leaving a perfectly round shadow behind. As her huge body turns in mid-jump, she hurdles herself down in Muk's direction with a powerful mega horn aimed. Half-way to the ground, a purple hand regurgitates back up her throat - forcing her mouth open as she whimpers in mid-air. Formed into a stream of ooze, the shiny Muk blasts himself up into her gullet, making her belly quickly double in size before her horn stabs into a rock beneath the sand - dangling her in place like a helium balloon. Her hind legs kick around as her mass rumbles loudly with stretch marks appearing, the rock cracks in half from the intense weight - causing her girth to fall to the sand with a jiggling thump. As her belly groans with the gooey twins pushing around inside, Rapidash drags herself towards the ocean while her rear legs hang aloof from her massive stomach. Her back hooves affectively raised off the ground.

Dipping her muzzle into the salty sea water to try drowning the pesky Muk's, a wild Horsea suction cups its mouth onto hers as her eyes widen. Rolling onto her back with her hooves rested on her sloshing gut, her navel points to the sky while a powerful stream of water jets down her throat as she moans hoarsely. Her head bobs back and forth from the intense water pressure - her belly bloats out further, the Muk's panic as they punch at the interior of her stomach in an attempt to flee. “GULP, GULP, GULP, GULP!” Rapidash's face turns red as the Muk's faint inside from drowning. Her eyes tear up as she slowly reaches bursting point while smacking the persistent Horsea with her hooves, her gargantuan girth strains as a perfectly spherical balloon belly. Rumbling loudly as her front hooves fall to the sand, she turns her head side-to-side in desperation that the Horsea would spare her. “MMMPH!!!” She cries-out as her belly explodes in a watery mess, drenching a portion of the beach while she lies fainted and flattened out.

Moments after, the Horsea detaches itself from her mouth and hops back into the sea. A Munchlax with a gentle nature walks over to the deflated Rapidash holding a max revive. Dropping one down her throat, she jolts up with a wag of her blazing tail. With a gentle lick across Munchlax's cheek, he blushes as he offers her an oran berry. THE END