The kitchen light cast a warm glow over the two friends as they stood in Jim’s apartment, the air thick with the faint scent of protein powder and something electric—something neither could quite name yet. Jim, at 5’10” and carrying a hefty, soft build that spoke of comfort and indulgence, leaned against the counter with his shirt riding up over the curve of his substantial gut. Steve, shorter at 5’6” and carrying a little extra padding himself, couldn’t stop stealing glances upward. He’d always loved the way Jim towered just enough to make him feel small, loved the way that heavy belly strained against Jim’s shirts after a big meal. But tonight, Steve had a secret.
“Drink it,” Steve said, pushing the oversized shaker toward Jim. His voice was steady, but his hands trembled with anticipation. “It’s… special. I mixed in something I’ve been working on.”
Jim raised an eyebrow, his thick beard twitching with a skeptical laugh. “You’re fucking with me, right? Some weird supplement that’s gonna make me huge overnight?” He patted his belly, the soft flesh jiggling under his palm. “I’m already big enough, man.”
Steve’s eyes darkened with hunger. “You’re perfect. But I want you bigger. I’ve wanted it for years.” He stepped closer, tilting his head back to meet Jim’s gaze. “I’m gay, Jim. And I’m into… this. Big bears. You. I’ve been obsessed with watching you grow that gut. And I found a way to help it happen.”
Jim stared, stunned. He’d had no idea. Steve had always been the quiet, supportive friend—spotting him at the gym, cooking massive meals together, teasing him about his appetite. But this? The confession hung heavy between them. Jim’s cock twitched unexpectedly in his shorts at the raw honesty in Steve’s eyes.
“You’re serious,” Jim muttered, then shrugged with a grin. “Fuck it. If it works, I’m game. I’ve always liked being… substantial.”
Steve watched with wide eyes as Jim downed the shake. The change started slow—a warm flush spreading through Jim’s body, then a sudden surge. Jim gasped, gripping the counter as his bones lengthened with audible creaks. His shoulders broadened, his chest barreled out, and that already impressive gut ballooned forward, rounder and heavier. Inch after inch stacked on. Steve felt it too—a dizzying pull, like his own mass was draining away. He shrank, clothes loosening, the world growing taller around him.
When it stopped, Jim stood at a towering 7’4”, his body a massive, powerful bear of a man. His black shorts clung desperately to tree-trunk thighs, the waistband digging into the vast, overhanging shelf of his belly. Steve, now barely 4’0”, stared up in awe, his head level with the bottom of Jim’s enormous gut.
“Holy shit,” Jim rumbled, his deep voice vibrating through the room. He looked down at his hands—huge now—and then at Steve, a mix of shock and delight spreading across his bearded face. “You… you actually did it. Look at you, little guy.”
Steve’s heart hammered. The height difference was intoxicating. Jim’s belly loomed over him like a warm, soft wall. Without hesitation, Steve stepped forward, his small hands grabbing the hem of Jim’s shorts and yanking them down. Jim’s thick, fat cock sprang free—semi-hard already, easily as long as Steve’s forearm and girthy enough to make the smaller man’s mouth water.
“Steve, what the—oh fuck,” Jim groaned as Steve wrapped both hands around the base and lifted the heavy shaft toward his face. Steve stood on tiptoes, then pressed his lips to the plump head, kissing it reverently before opening wide. He had to stretch his jaw to take it, but he did, sucking greedily on the first few inches while stroking the rest with eager hands. Jim’s cock swelled fully in his mouth, veins pulsing against Steve’s tongue.
Jim’s massive hand settled gently on the back of Steve’s head, not forcing, just guiding. “That’s it… good boy. You’ve been wanting this, huh?” His belly rested heavily on Steve’s shoulders and the top of his head as he leaned forward slightly, feeding more of his fat dick into the eager mouth. Steve moaned around the girth, saliva dripping down his chin, eyes watering with effort and lust. He bobbed as best he could, worshipping every inch, his own smaller cock tenting his shorts painfully.
The sight was obscene and perfect: the towering giant being serviced by his shrunken friend right there in the kitchen. Jim’s balls, heavy and full, swayed against Steve’s chest with every suck.
After several long, sloppy minutes, Jim pulled back with a wet pop, his cock glistening. “Couch. Now.”
He lumbered to the living room, the floor creaking under his new weight, and dropped onto the wide sofa. His belly spilled forward between his spread thighs, a massive, soft dome that rose and fell with his breathing. Steve approached, stripping off his own clothes, his smaller but still eager dick bobbing free—now perfectly proportioned for what he had in mind.
“Can I… fuck your belly button?” Steve asked, voice husky with need. He climbed up onto Jim’s lap, straddling the lower part of that enormous gut. Jim chuckled, the sound a low rumble, and leaned back, lifting his belly slightly with both hands to expose the deep, inviting navel.
“Fuck yes. Use me, little man.”
Steve pressed the head of his cock against the soft, warm indent. It slid in easily—Jim’s belly button was deep and accommodating now, like a tight, fleshy sleeve. Steve groaned loudly as he pushed inside, the heat and give of Jim’s fat surrounding him. He thrust shallowly at first, then harder, hips slapping against the yielding belly flesh. Jim moaned, the sensation strange but intensely pleasurable, his own massive cock twitching and leaking precum onto his gut.
“That’s so fucking weird… and hot,” Jim growled, watching the tiny Steve hump his navel like it was the best pussy he’d ever had. Steve’s hands sank into the soft overhang of Jim’s belly for leverage, kneading the warm fat as he fucked faster, lost in the fantasy.
After a few minutes of desperate thrusting, Steve pulled out, panting. “Need more. Need you inside me.”
Jim’s eyes gleamed with dominant hunger. He lifted Steve effortlessly with one huge hand, positioning the smaller man over his throbbing erection. “You sure you can take it, shortstack?”
Steve nodded frantically. “Please.”
Jim lowered him slowly. The fat head of his cock pressed against Steve’s tight hole, stretching him open inch by inch. Steve cried out in pleasure-pain as he was impaled, his body sliding down the thick shaft until he was nearly halfway seated, belly bulging visibly from the intrusion. Jim’s gut pressed warmly against Steve’s chest and face, smothering him in soft, heavy flesh.
“Fuck, you’re tight,” Jim grunted. He began to pump, strong hips thrusting upward, bouncing the tiny man on his cock like a living toy. Steve’s legs dangled, feet kicking helplessly in the air as he was fucked senseless. Each powerful stroke made his own smaller dick slap against Jim’s belly, precum smearing across the vast expanse.
Jim fed him more—holding Steve down deeper, grinding that massive gut against him, letting the weight pin him in place while the huge cock rearranged his insides. The room filled with the sounds of skin slapping, wet squelching, and their mingled moans.
Steve came first, shooting ropes of cum across Jim’s belly, the sight pushing the giant over the edge. Jim roared, flooding Steve’s insides with thick, hot loads that overflowed and dripped down.
They stayed like that for a long while afterward—Steve draped limply over Jim’s heaving gut, still impaled, while Jim stroked his back with one enormous hand.
“I could get used to this,” Jim murmured, a satisfied smile on his face as he looked down at his shrunken, cum-drunk friend.
Steve nuzzled into the warm belly flesh, already imagining the next meal, the next growth, the next round of worship. “Me too, big guy. Me too.”
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