Chapter 15: Extra Helping
Water pooled around Donna’s feet on the bathmat as she stepped toward him. The air in the bathroom was thick, steam condensing on the mirror until their reflections blurred into ghosts. Clark didn’t move from the doorway, a dark silhouette against the hallway light, his cock a stark, upright claim in the humid space.
Her body moved on a current of pure need, past thought or caution. As she passed the vanity, her hand shot out almost of its own volition. The jar was there, lid off. Without breaking stride, she dug her fingers into the cool, translucent substance. She didn’t scoop. She grabbed. A thick, glistening mound filled her palm, excess dripping between her fingers onto the tile floor with soft, wet plops.
“Donna—” Clark started, his voice a mixture of awe and alarm.
She ignored him. Her other hand spread her labia. In one crude, sloppy motion, she crammed the entire handful into her own opening. It wasn’t an application. It was a packing. The gel was shockingly cool, a stark contrast to her fevered flesh, and there was so much of it. It bulged within her, a strange, internal slurry, leaking out around the edges of her fingers as she worked it deeper with a frantic, grinding push.
“Do you know what you’re doing?” Clark asked, his eyes wide, fixed on the mess she was making of herself.
“I know what I need,” she panted, her voice ragged. Her cunt felt stuffed, stretched by the cold, formless mass. The gel’s characteristic tingle began, but muted, buried under the sheer volume. It was a deep, internal pressure, a promise of something more.
She closed the distance between them, her wet body leaving dark footprints on the oak floor. She took his hand, slick from his own touch, and pulled him toward the bedroom. He followed, his erection bobbing, his movements stiff with a potent mix of lust and apprehension.
The sunset was a bloody smear through the half-open curtains, casting the rumpled bed in a failing, caramel light. The room smelled of their earlier tryst, of sweat and sex and the faint, ever-present metallic hint.
Donna climbed onto the bed, kneeling over him as he lay back. The gel within her shifted, a cold, heavy slosh. She loomed above his cock, which looked inhuman in the gloom—thick, veined, the head gleaming with moisture. Bigger than the toy. A real, living instrument.
She guided him to her, her fingers slick with stray gel. The tip of him pressed against her swollen, overstuffed entrance.
“Oh, fuck,” Clark breathed, watching, his hands coming to rest on her hips.
Donna bore down. She pushed, a low grunt escaping her lips. His cockhead parted her, but it also plunged into the cool reservoir of gel. There was a wet, squelching sound, vulgar and loud in the quiet room. The substance was forced inward, outward, around the invading shaft. Icy rivulets of it mixed with her own heat and trickled down his balls, onto the sheets.
She sank lower, taking him in an inexorable, messy descent. The stretch was immense, breathtaking, but the sensation was bizarrely muted, mediated by the slippery buffer between her nerves and his flesh. She could feel his girth, his shape, but it was like feeling it through a numb, buzzing glove. The fullness was total, apocalyptic, but the sharp, defining edges of pleasure were blurred.
“Jesus, you’re packed with that shit,” Clark groaned, his hips lifting to meet her slow, grinding impalement. His fingers dug into her flesh. “It’s everywhere.”
She bottomed out, his pelvis meeting hers with a soft slap. The displaced gel had seeped out, coating their joining in a slick, cooling paste. She began to move, a rocking, rolling motion. Each rise and fall produced that same squelch, a rhythmic, obscene soundtrack. The gel churned inside her, a chaotic slurry.
The gel churned inside her, a chaotic slurry. Clark’s thrusts grew more urgent, driving deeper. Each plunge displaced the cool substance with a wet, rhythmic slap.
“Fuck, it’s burning,” Clark grunted, his face tensing. He slowed his hips, a wince flickering across his features. “A little.”
Donna, lost in the overwhelming fullness, shook her head. Her inner muscles fluttered, trying to grasp what was happening. “No,” she breathed, her voice trembling with revelation. “It’s not burning. You’re getting bigger.”
The sensation was unmistakable. The familiar, electric tingle of the gel, which had been a surface buzz on her clit and a low hum in her channel, suddenly spearheaded deep into her core. It stabbed at her cervix, a sharp, effervescent ping that made her gasp. Clark felt huge inside her, a stretching presence, but now she felt a gradual, insistent pressure increasing against her most intimate gate.
He was growing. Not a swift, impossible inflation, but a slow, relentless expansion. She could feel the dense flesh of his cock thickening, the already prominent veins becoming fuller, harder ridges against her sensitized walls. Her body, traitorously, began to adapt. A deep, visceral unlocking occurred within her pelvis; her vaginal canal, spurred by the gel’s deep penetration, seemed to soften and yield, extending itself to sheath the increasing girth.
“Oh my god,” she moaned, her nails biting into his shoulders. Her hips stilled, awestruck by the internal metamorphosis. “Don’t stop. Can you feel it?”
Clark’s eyes were wide, dark pools in the dim light. The initial sting had faded, replaced by a torrent of other feedback—the incredible tightness, the heat, the wet, squelching noise of the gel being forced around his expanding shaft. He looked down, watching his cock, slick and streaked with the translucent cream, disappear into her. It did look different. Fuller. More obscene.
“I feel… everything,” he managed, his voice thick.
He pulled back almost all the way, until just the swollen tip remained lodged in her soaked entrance. Then he drove forward again, a deliberate, testing thrust. The sloshing cream was violently displaced, hitting her cervix like a cold, shocking tide before seeping out around the base of his cock, dripping in thick rivulets over his tight testicles. The burning he’d felt was gone, utterly consumed by a sensation of monumental pressure and friction.
The sensation wasn’t pain. It was a profound, stretching conquest, a filling so complete it blurred the line between pleasure and violation. He watched, mesmerized, as his own body, slick and streaked with the stolen cream, performed this grotesque miracle within hers.
“It’s not stopping,” he gasped, his hips stuttering in their rhythm. He could feel the engorged head of his cock, now noticeably broader, pressing against a deep, internal barrier it had never challenged before.
Donna’s head fell back, a strangled cry tearing from her throat. The pressure was colossal, a sweet, splitting fullness that resonated in her bones. “My god, you’re in my womb,” she slurred, the words thick and drunk with sensation.
Her internal muscles, overstimulated by the churning gel and his expanding girth, began to clench in ragged, involuntary spasms. That frantic fluttering, the trapped energy of her unsatisfied afternoon, finally found a focus. It triggered something in him, a primal response to the intense, sucking tightness.
A ragged shout erupted from Clark’s chest. His entire body locked, arching up off the bed, driving himself even deeper as he came. His release was a violent, pulsing torrent, hot jets of cum firing into her with a force that seemed to push against the gel, mixing with it in her deepest recesses.
The feeling of his climax, the raw, physical proof of his pleasure detonating inside her, was the final key. Donna’s own orgasm ripped through her with no warning, a seismic shockwave that whites out thought. It was a deep, full-body convulsion, her cunt milking his still-throbbing cock in frantic, greedy draws.
The pulsations began to subside, leaving them both panting, slick with sweat and gel. But the fullness didn’t diminish. It increased. A low, aching stretch continued, a slow, inexorable push.
Clark, spent, tried to slip out. He couldn’t. He remained rigid, lodged inside her. Worse, he felt a faint, impossible tightening of the skin, a further gradual expansion against her convulsing, sensitive walls.
“Don’t,” Donna commanded, her voice a husky rasp. Her eyes snapped open, locking onto his. There was no tenderness there, only a feral, hungry need. She clamped her muscles around him, a vise grip. “Don’t you fucking stop.”
She began to move again, a slow, grinding roll of her hips, forcing his still-growing flesh to move within her oversensitive channel. The sensation was unbearable, exquisite, a raw overstimulation that made her vision swim.
“It’s too much,” Clark groaned, but his hands gripped her hips, holding her in place. He was captive to it, to her, to the substance changing them both.
“No,” she hissed, leaning close, her breath hot on his face. “It’s not enough. Keep going. Keep fucking me.” She emphasized each word with a tight, internal squeeze. “Keep growing bigger.”
The command hung in the air between them, a filthy, impossible prayer. Clark’s face was a mask of strained wonder, his breath coming in short, sharp gasps that matched the rhythm of her internal pulses around him. He was trapped, not just by her body, but by the shocking, relentless feedback from his own.
He felt the slow, cellular distension. It was a deep, internal pressure, like a sponge absorbing water and expanding in a confined space. His cock, already thick and heavy with his recent orgasm, remained a rigid column of living flesh buried inside her. The sensitivity was blinding, every microscopic twitch of her vaginal walls registering as a seismic event along his oversaturated nerves.
“I can’t… control it,” he gritted out, his hands sliding from her hips to clutch at the damp sheets.
“Good,” Donna breathed, rolling her pelvis in a slow, experimental circle. The movement forced his expanding girth to rub against new, previously untouched ridges deep within her. A fresh, shocking wave of pleasure-pain made her eyes roll back. “Don’t you dare control it.”
She leaned forward, bracing her hands on his chest. The change in angle drove him even deeper, the now-broader head of his cock applying a steady, inexorable pressure to her cervix. It was no longer a knocking. It was a blunt, sustained invasion of that deepest gate.
“It feels like you’re splitting me open,” she moaned, the words slurring with a perverse delight. “Right in my fucking core.”
Clark watched her, mesmerized by the savage ecstasy on her face. His own sensation was a confusing riot. The pleasure was there, monstrous and undeniable, a thick rope of raw feeling pulled taut from his balls to his brainstem. But woven through it was a thread of animal panic. This was wrong. His body was doing something it shouldn’t, couldn’t do. The gel she’d packed inside herself was doing it, rewriting their biology in real time.
He flexed experimentally, a subtle internal push.
Donna cried out, a sharp, broken sound. “Yes! Do that.”
He did it again, a conscious, forceful clenching of the deep muscles at the base of his cock. He felt the engorged tissue respond, not with movement, but with a further, incremental swell. The tight, hot sheath around him grew impossibly tighter, her flesh straining to accommodate him.
The slick, cooling gel was all but gone now, worked out and warming between their joined bodies, leaving only the stark, burning friction of their communion. Each beat of his heart seemed to pump a new, minute surge of blood and intention into his shaft. The growth wasn’t fast, but it was ceaseless, a slow, geologic shift happening inside her.
“Talk to me,” Donna demanded, her voice hoarse. Her forehead was damp, auburn hair sticking to her skin. “Tell me what it’s doing.”
“It’s… getting thicker,” he grunted, the admission sounding insane even to him. “I can feel it pushing out. Everywhere. You’re so fucking tight it’s like you’re trying to strangle it.”
She laughed, a low, ragged sound. “I am.” To prove it, she contracted her internal muscles with deliberate, crushing force, a series of rhythmic, gripping spasms that made him shout.
The new pressure from her triggered another response in him. The growth seemed to pulse in time with her clenches, each one met with a faint, yielding expansion. It was a feedback loop of madness. Her body challenged his; his body rose to meet the challenge, stretching her further, which only made her clamp down harder in a frantic, ecstatic attempt to conquer what was conquering her.
“Fuck, Donna, it’s too much,” he gasped, but his hips began to move again, short, shallow thrusts that were less about stroke and more about grinding the new, immense breadth of him against every nerve she possessed.
“It’s not,” she snarled, her politeness, her guilt, her earlier dissatisfaction all incinerated in this primal furnace. “It’s what I’ve needed. It’s what that cream is for. Can’t you feel it? My cunt is fucking shaping itself around you.”
Her words painted the obscene picture. He could feel it. Her passage was no longer just accommodating him. It was actively reforming, softening in some deep, secret way to take more of him, the tissues becoming pliant and hungry. The memory of her cold, silicone toy was a joke. This was living, breathing, growing reality.
The pace of his unintentional transformation seemed to subtly quicken, fed by her savage encouragement and their relentless, grinding connection. The stretch for her became a constant, blinding presence. Pleasure crystallized into something sharper, a sustained, peakless state of overwhelming sensation that held her suspended on a wire of near-agony.
She was no longer riding him. She was impaled, a butterfly pinned by the sheer, monumental girth of him. Her own orgasm was a distant memory, obliterated by this newer, more total state of being filled. Her mind emptied of everything but the present, brutal truth of their joining.
Clark’s eyes were shut tight, his world reduced to the dark, wet furnace of her body and the impossible happening within his own. The initial panic was being smothered by a rising, dominant tide of possession. She was his. And he was becoming something specifically, exclusively for her. The gel was the catalyst, but her raw, screaming need was the blueprint.
A new, profound tension built in his sac, a deep, gathering ache that had nothing to do with a second climax. It was a feeling of potential, of dormant, awful power. He opened his eyes, looking up at her ravaged, beautiful face.
“It’s not stopping,” he whispered, awe and horror finally equal in his voice.
He kept growing.
The pressure reached a new, crushing zenith. Donna’s mouth opened in a silent scream. Her body arched, then went limp, sagging forward onto his chest, held up only by the solid, unyielding column of flesh that bound them together. She was utterly, devastatingly full. There was no room for thought, for air, for anything but him.
Clark held her there, feeling the minute, inexorable expansions continue, each one settling him deeper into a territory of her body that had never been meant for invasion. The sun had fully set. The room was dark. They were locked together, breathing raggedly in the gloom, a single, straining organism fused by stolen gel and unleashed hunger.
The growth continued, a slow, relentless claiming in the dark.