Pumping Up

Before Icicle knew it, Midnight was leaning forward again toward him. Her lips puckered - and then settled into a suckle around his own lips, kissing him deeply. Icicle moaned into it, letting Midnight's much larger tongue invade his muzzle and savoring the power of her oral muscles as she kissed and fondled him to her heart's desire. Her great, hefty giantess' breasts, each one large enough to hold a full apple cart, squished like water balloons against his air-swollen belly, the pleasure of contact more than enough to make his little, useless limbs flail in near-ecstasy.

And then she began to blow.

It started as an exhale - a gentle sigh, almost - but soon picked up into a much stronger gust of wind. His marefriend's lungs, likely larger than he'd been before beginning, inflated powerfully as they pushed her mega-tits further out against his bloated belly. Then she exhaled, breathing out right into his muzzle - and, by extension, his gut.

Icicle groaned as his marefriend forced him bigger. His belly began to expand, his size further fueled by Midnight's oral ministrations. His shoulder blades pressed harder against the ceiling. He heard the crack of plaster - felt the tension against his back suddenly give way. The floor was groaning, the walls creaking as his massive belly and form expanded to fill every inch of their overstuffed bedroom -

With a mighty crack!, the floor shattered. Icicle found himself tumbling downward - before rebounding, bouncing off the ground floor like a giant beach ball. He thought he heard the crack of his splintering sofa beneath his mega-gut, but it might as well have been the bite of a gnat for all he felt it. His belly depressed, and then expanded again, its incredible pressure hungry to assert its dominance and size over its new environment.

Midnight didn't descend so much as grow downward. Her size increased as she fell, and she stepped gracefully onto the ground floor at the same time that his bubble-blown booty bounced against the top of the ceiling. She caught him, spun him, then laughed softly at the dazed look in his eyes.

"Enjoying the ride?" she purred.

"Yessss," Icicle slurred. Midnight's smirk grew wider.

"Good," she said. "Because you wanted big - and you're nowhere near big enough!"

This time, he expected her muzzle on his lips - though he hadn't quite expected her slender, gorgeous hand wrapping around his hypercock. His shaft was nearly half as wide as his belly by now; as she exhaled into his muzzle again, he felt every part of him growing bigger, growing wider, growing stretched. Icicle drank down the air and size of Midnight's gift greedily, like a foal guzzling down it's mother's milk - and Midnight was more than happy to provide.

Her cheeks puffed out, pulling in all the air she could - and then she breathed it all out, forcing her load down Icicle's esophagus and into his oxygen-bloated belly. Icicle's hooves wiggled happily - and then froze as he felt his sides press against the walls of his house once again. His and Midnight's expanding forms had rolled over each wall, each floor, each item of furniture until the building was little more than one gigantic room - and now, even now, it was about to become too small for the growing couple.

With a great, splintering crash, the house burst around them. Icicle's nostrils flared, his eyes widening as he toppled backward. His gigantic, roly-poly form bounced and rolled over the wreckage of his house. He settled in the debris-scattered remnants of his front yard, his air-bloated body taking up the entire space, with his head around the same height as the second story had once been.

And over him loomed Midnight, her deep indigo hide gleaming in the sunlight. Her enormous nude form was lewdly and shamelessly displayed before the neighborhood. Her tits, each a dozen feet across, bounced and wobbled at the level of the highest roofs on the block; her eyes, narrowed and slitted with lust, towered above the trees.

"Poor little Icicle," she cooed. She took a step forward - and the ground shook. "So big and plumped-up and round" - she took another step, and the earth rumbled - "that you can't even move." Her muzzle curled into a smirk, and she stopped just before his tremendous, twenty-foot ballsack. "I suppose it means I'll have to take care of you."

Puffy cheeks puffed out further. Icicle gasped, trying to hold all the air inside of him in. "Y-yes, please!"

Midnight's smirk split into a predator grin. "Mm," she crooned. She leaned forward, placing both cart-sized hands along his swollen, throbbing stallionhood. Twenty-five feet if it were an inch, it loomed above the both of them, pulsing as if possessed of a heart all its own. "I'm sure you'll make a wonderful pillow."

He grinned. "F-for a goddess like you?" Her eyes flittered down at him, and she began to nuzzle her cheek against his throbbing cock. "A-absolutely!"

"But of course," Midnight cooed. "You're just so tubby and plump." She leaned forward until her breasts were wrapping around his mountain of a member; slowly, she began to shift her weight onto his house-sized belly, pulling herself up along the length of his shaft until she could position her mega-marehood over his hyper-cock. "Ooh - oh!"

Icicle sucked in a breath - inflating an infinitesimally amount larger - as he felt his fat flare pierce his marefriend's pussy lips. Midnight moaned, her spine arching as she slid herself down, spearing herself on his meat. She groaned, both hands moving up to rub at the bulge in her belly where his cock strained against her velvet insides. Then, slowly, humming and stroking her overstuffed womb, she leaned forward and down against him.

Her belly pressed against his. Hers was hard, but hot, filled with his meat. His was softer, cooler, bouncier. She growled playfully under her breath, grinding her weight down against his - and then began to grow even bigger.

"Show me a good time, big boy," Midnight growled. She leaned forward, took his muzzle in hers, and exhaled.

Icicle groaned in elation. He could feel her weight increasing - at first slowly, then doubling, then tripling. He could feel his member growing smaller inside of her - but no, she was getting bigger. But the next exhale pushed him larger still. He inflated, squirmed, wriggled, as his every limb and belly were inflated to bigger and bigger sizes -

With a whimpering grunt, he unleashed his orgasm. Midnight cooed lovingly, her tongue twirling around his, as his hot, steaming load of sperm gushed inside of her. He could feel her womb drinking it down, swelling, bloating, sloshing until she looked heavily, impossibly pregnant. He could feel the tide of his own semen churning around his cock, weighing against his belly through the overstretched hide of hers. He could feel her cunt welcoming each flex of his shaft as her walls clenched and flexed and grew and grew.

More air. More size. More weight. More air. He was feeling so tight - so bloated - so full -

With an earthshaking pop!, he blew. His body, which by then had grown to swallow up most of the property, exploded from the sheer pressure of all the air that had been forced inside of him. It was simply too much.

Midnight groaned. Her giantess' form sprawled across the front and back yards, her abused cunt leaking her mate's seed all over the wreckage. "Unf," she murmured, kneading her hefty cum-gut. "I-icicle?"

She felt something rub against her midsection.

She blinked, then glanced down. Great tufts of hide and fur floated down through the air, the remnants of the explosion - and there, at the center of the storm, was a tiny, pony-sized Icicle lying prone on her popped-out, pregnant-looking belly button.

Midnight smiled, then lifted one five-foot finger to stroke his unconscious body gently. He squirmed beneath its weight - but then relaxed, moaning happily in his sleep.

"That's my Icicle," she murmured, petting his little body. "Just big enough."