Cover of The Experimental Endeavor (F)

The Experimental Endeavor (F)

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A woman and her girlfriend have a stale sex life and the girlfriend clearly isn't satisfied with toys for penetration; the woman decides to get a new experimental injection to grow a penis. Not only does it work, it also has other unintended side effects like breast growth. The girlfriend loves it, but wants even more.

Chapter 53: Satisfaction

The bathroom door clicked shut behind her, a sound that felt absurdly small in the thick silence of the bedroom. Evie padded back in, the old floorboards cool under her bare feet. She’d splashed water on her face, trying to scrub away the lingering phantom sensations of her own changed body, the heavy, unfamiliar weight between her legs that both terrified and thrilled her.

The scene that greeted her was one of utter devastation.

Sophie lay on her side, curled almost fetal, but the position couldn’t hide the raw, swollen look of her. Her pale skin was mottled with red marks—finger-shaped bruises on her hips, the violent bloom of a love bite on her shoulder. The sheets beneath her were soaked through with a mixture of fluids, dark and stark against the light cotton. Her long red hair was a tangled mat. She was breathing in shallow, hitched sighs, her eyes closed, but a faint, tremulous smile touched her lips. Satisfaction, deep and absolute, radiated from her spent form.

Clare was sitting on the edge of the bed, her back to Evie, her head in her hands. The powerful line of her shoulders was slumped. The dawn light cut across her spine, highlighting the tense cords of muscle. And then Evie’s gaze traveled down.

She’d seen the twin cocks before. The monstrous, coiled lengths that had emerged from Clare, that had both repulsed and magnetized her. They lay now against Clare’s thigh, flaccid but still imposing, their sheer size and alien shape a permanent disruption to the woman Evie loved. But below them…

Evie’s breath caught. A third. Nestled at the base, smaller, but by no means small. It was a thick, solid-looking cock, perhaps seven or eight inches even in its soft state, a pale contrast to the purplish hue of its larger counterparts. It looked… human. Or human-ish. A recognizable erection, not a tendril from a nightmare.

A strange, electric jolt shot through Evie’s gut. Not disgust. Not this time. It was a spark of pure, unadulterated possibility. The twin cocks were impossible. They were instruments of destruction, things that belonged in the dark fantasies she’d sketched in private moments but never dared to speak aloud. Taking one of those, let alone two, was a physical impossibility for her small frame. The thought made her clench internally with a fear that was almost sweet.

But that third one…

“Clare?” Her voice was soft, scratchy from disuse.

Clare’s head jerked up. She looked over her shoulder, and her striking blue eyes were a turbulent sea of conflict—horror, satiation, shame, exhaustion. “Evie.” Her name was a sigh. “I… I don’t know what…”

“I see it,” Evie interrupted, moving closer. She couldn’t stop staring at the new appendage. Her own body was responding, a familiar, slow heat building low in her belly. The heavy, substantial weight between her own legs began to stir, thickening, lengthening, pressing insistently against the fabric of her loose sleep shorts. She ignored it, focusing on Clare. “It’s new.”

“It grew while I was…” Clare gestured vaguely at Sophie’s unconscious form. “While we were… I didn’t control it. It just happened.”

Evie knelt on the floor in front of Clare, the mess of the bed beside them. She reached out a tentative hand, stopping just short of touching the smaller cock. “It’s different.”

“It’s still a fucking cock, Evie,” Clare said, the lawyer’s sharpness returning, edged with panic. “I have three of them. I’m a fucking monster.”

“You’re not a monster.” Evie’s voice gained strength. Her eyes flicked from the new cock to Clare’s face. “You’re adapting. You’re… giving me what I can handle.” The implication hung in the ozone-tinged air.

Clare stared at her. “What?”

“The big ones,” Evie said, her gaze drifting to the twin coils. “I could never. You know I couldn’t. I’d break. But that one…” She finally let her fingertips brush the soft, warm skin of the new cock. It twitched under her touch, a responsive, living thing. A shudder ran through Clare, and a low groan escaped her lips—part despair, part unwelcome arousal.

“Evie, this isn’t a solution. This is a fucking catastrophe.”

“It’s a new part of you,” Evie insisted, her own need making her bold. The insecurities that had plagued her for months—the fear of being inadequate, of boring Clare, of not being enough to satisfy her—were being burned away by a giddy, terrifying hope. Here was a part of Clare she could actually take. She could be filled by her girlfriend, properly, deeply, without being destroyed in the process. Her hand curled around the shaft, feeling it firm up instantly under her grasp. It grew to its full, impressive size, a solid, hot weight in her palm. “It’s perfect.”

“Look at Sophie,” Clare hissed, grabbing Evie’s wrist but not pushing her hand away. “Look what the ‘big ones’ did. That’s what I am now.”

“Sophie’s smiling,” Evie countered, her thumb sweeping over the broad head, smearing a bead of clear pre-cum. “She’s fucked-out and happy. And she got the version of you I can’t handle. This one… this one is mine.”

Her own massive cock was fully erect now, tenting her shorts, a demanding pressure. She was wet, a slick heat gathering between her thighs that had nothing to do with fear and everything to do with a fierce, claiming desire. She wanted to be fucked by this new part of Clare. She wanted to prove she could take it, that she could satisfy this new, voracious aspect of the woman she loved.

“You don’t know what you’re asking,” Clare whispered, but her hips gave a tiny, involuntary thrust into Evie’s hand. The conflict on her face was being swallowed by a darker, simpler hunger. The predator, momentarily sated by Sophie, was stirring again, presented with a new, willing offering.

“I know exactly what I’m asking,” Evie said. She stood up, pulling her sleep shirt over her head. Her small breasts, her pink hair mussed from sleep, her glasses slightly askew. She hooked her thumbs into the waistband of her shorts and pushed them down, along with her underwear. Her own cock sprang free, thick and heavy, a shocking contrast to her petite frame. She saw Clare’s eyes widen, taking in the full reality of Evie’s transformation for the first time in this stark light.

“Fuck, Evie,” Clare breathed.

“See?” Evie said, a wild, nervous smile on her lips. “We’re both different now. So let’s be different together.” She climbed onto the bed, straddling Clare’s lap, carefully avoiding the two larger, resting cocks. Her own substantial length slid against Clare’s stomach. She positioned herself, guiding the head of Clare’s newer, smaller cock to her entrance. She was so wet it slid through her folds effortlessly, nudging at her opening.

Clare’s hands came up to grip Evie’s hips, her fingers digging in. The last vestige of resistance in her eyes shattered. “You’re sure?”

In answer, Evie sank down.

It was a stretch—a glorious, burning, perfect stretch. The thickness filled her completely, a solid, relentless pressure that touched places inside her that had only ever been theoretical before. She cried out, a sharp, high sound of pure relief, as she impaled herself to the hilt, Clare’s pelvis meeting hers with a soft smack. She was full. Devastatingly, wonderfully full. Not of a monster, but of Clare.

“Oh god,” Clare groaned, her head falling back. “You’re so fucking tight. So hot.”

Evie began to move, a slow, rocking grind. She set the pace, controlling the depth, learning the feel of this new part of her girlfriend. Each drag sent sparks shooting up her spine. Her own cock, trapped between their stomachs, leaked copiously, smearing pre-cum on both of them.

“Yes,” Clare snarled, her hips bucking up to meet Evie’s descent. “Fuck, yes, Evie. Just like that.” Her lawyer’s composure was gone, replaced by raw, grunting need. “Take it. Take all of it, you perfect little slut.”

The obscenity, coming from Clare’s mouth, ignited Evie. She rode her harder, faster, the wet, slapping sounds of their joining filling the room alongside Sophie’s soft snores. Evie’s insecurities evaporated with each punishing thrust. She could take this. She could handle this. She was satisfying Clare, truly, deeply, for the first time since the changes began.

Clare’s hands moved from her hips to her ass, pulling her down harder with each upward drive. “Gonna come,” Clare warned, her voice guttural. “Gonna fill that pretty little cunt.”

“Do it,” Evie demanded, her own orgasm coiling, a tight spring in her gut. “Come inside me, Clare. Claim me.”

The command undid Clare. With a roar that was part anguish, part triumph, she slammed up and held deep. Evie felt the hot, pulsing rush flood her, wave after wave, a profound intimacy that was both utterly familiar and completely new. The sensation triggered her own climax. Her cunt clamped down in rhythmic convulsions around the buried cock, milking it, as her own massive shaft jerked between them, spilling thick stripes of come across Clare’s abdomen and breasts.

Evie collapsed forward, her sweaty forehead resting against Clare’s shoulder. They stayed locked together, breathing in ragged sync. The smaller cock, still nestled inside her, gave a few final, gentle throbs.

In the quiet, Clare’s hand came up to cradle the back of Evie’s head. “Evie,” she murmured, the word fraught with too many things to name.

On the other side of the bed, Sophie stirred. One green eye opened, bleary and satiated, taking in the sight of Evie impaled on Clare’s lap. A slow, knowing smile spread across her bruised lips. “Round two?” she mumbled, her voice hoarse, before her eye fluttered shut again.

Evie didn’t move. She clung to Clare, to the feeling of being utterly claimed and utterly safe, even as the rest of the world—and the other two, monstrous cocks resting against her thigh—reminded her that nothing would ever be simple again.

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