Chapter 3: The Ass That Changed Everything
The lingering warmth of that second orgasm – deep and diffuse like honey – still pulsed gently through Anya’s limbs as she lay sprawled on the beanbag. Rune’s shoulder pressed warmly against hers, the scent of incense and their shared exertion thick in the air. The vibrator on the low table continued its soft, insistent hum, a counterpoint to the fading thump of bass from another room. Anya traced a finger idly across her stomach, sticky but strangely content, her mind adrift in the revelation: pleasure could exist without rigidity.
"See?" Rune murmured again, their voice a satisfied purr. They shifted slightly, their gaze drifting downward, lingering. "Told you. Nerves are still wide awake." A playful nudge against her ribs. "Doc wasn't lying about the sensitivity upgrade, huh? Felt like I could light you up just by breathing on you."
Anya chuckled, a rusty sound that felt good. "Understatement of the fucking century." She stretched, her C-cup breasts shifting, the skin feeling peculiarly sensitized, almost tight. The doctor’s words – growing tits, super sensitive ass – echoed again, less frightening now, more… intriguing. Her gaze followed Rune’s, landing on the prominent bulge straining against the shimmering fabric of their hot pants. The sheer size of it, even hidden, was impossible to ignore. An unexpected, warm thrum echoed deep within her pelvis, a place untouched by Rune’s mouth. Her soft cock remained undisturbed, a quiet comma against her thigh.
Rune caught her looking. A faint blush crept up their neck, visible even in the low, multi-colored light. They instinctively shifted, trying, as always, to subtly angle their hips away, a gesture Anya had seen countless times but suddenly found endearing instead of puzzling. "Stop staring at the damn tent pole," they mumbled, embarrassment warring with a flicker of pride.
Anya grinned, her natural optimism resurfacing. "Hard not to when it’s trying to punch its way out of sequins." She propped herself up on one elbow, her green eyes meeting Rune’s. The shared vulnerability, the bizarre comfort of the last hour, emboldened her. "So… Doc also mentioned my ass is basically wired for pleasure now. Like, super-conductor levels." She paused, letting the implication hang. "Wanna… test that theory?"
Rune’s eyes widened. The blush deepened, spreading across their delicate cheekbones. Their gaze flicked from Anya’s face to her soft cock, then down to the curve of her ass barely visible above the bunched yoga pants still around her thighs. The air crackled, thick with possibility and the faint ozone tang of the humming vibrator. "Anya…" They swallowed. "Are you sure? After… everything?"
"More sure than I was ten minutes ago," Anya said honestly. She reached out, her fingers brushing Rune’s knee. "Feeling good is feeling good, right? Doesn't matter how it happens. And right now…" She glanced meaningfully at the impressive bulge again. "I’m kind of curious what that feels like. Especially back there." She patted her own butt cheek.
A slow, dazzling smile spread across Rune’s face, transforming their features from beautiful to breathtaking. Nervousness vanished, replaced by pure, focused delight. "Okay, Red," they breathed. "Okay. But we do this slow. Like, glacial." They pushed themselves up from the beanbag with dancer’s grace. "I mean it. You tell me anything."
"Promise," Anya murmured, her own pulse kicking up a notch. The casual intimacy of the moment felt profound.
Rune moved to a low chest adorned with swirling paint splatters and pulled out a small bottle of clear lube. They knelt beside Anya on the plush rug, the vibrant patterns almost glowing. Gently, firmly, their hands settled on her hips. "Flip over for me? Onto your front."
Anya complied, pushing the yoga pants the rest of the way down her legs and kicking them off. The cool air hit her exposed skin, making her shiver. She settled onto her stomach, turning her head sideways on the beanbag to watch Rune. The plush fabric cradled her breasts, the pressure unexpectedly pleasant against her sensitized nipples. She felt utterly exposed, her soft cock nestled against the beanbag, her ass presented. Vulnerability warred with a thrilling sense of anticipation.
Rune’s hands, cool from the lube bottle, smoothed over the curve of her buttocks. The touch was clinical at first, assessing. Then, fingers traced the cleft, feather-light. Anya gasped. It wasn't just touch; it felt like a live wire had been brushed against her skin, sending a jolt of pure sensation radiating inward. "Fuck," she breathed.
"Told you," Rune murmured, satisfaction lacing their voice. Their fingers returned, slick with cool lube now. They pressed gently against her entrance. Anya tensed instinctively. "Easy," Rune soothed. "Just relax. Breathe." Their other hand rubbed soothing circles on her lower back. "Trust me, Red."
Anya forced air into her lungs, willing her muscles to unclench. Rune’s slicked fingertip pressed again, insistent but patient. A slow burn flared, intense but not painful, as the tip breached her rim. The sensation was immediate and overwhelming – a deep, internal spark that seemed to ignite every nerve ending she possessed. She cried out, a sharp, involuntary sound, her hips pressing back involuntarily against the intrusion. "Oh! Gods, Rune!"
"Okay?" Rune asked, their voice tight with concentration, their finger pausing, buried to the first knuckle. The stretch was intense, the heat incredible, the sheer presence inside her almost too much.
"Y-yes!" Anya gasped, her voice muffled by the beanbag. "Just… intense! Don't stop!" It was a floodgate opening. The super-sensitivity the doctor predicted was no joke. Every millimeter of movement sent cascades of sensation through her. Rune’s finger slid deeper, curling slightly. Anya moaned, her body arching, her soft cock pressing insistently against the beanbag fabric despite its flaccidity. Pleasure, sharp and electric, radiated from her core, making her toes curl.
Rune worked her open with meticulous care, adding a second finger, stretching her slowly, watching her reactions like a hawk. The burn subsided, replaced by a profound feeling of fullness and a relentless current of pleasure that seemed to bypass her nervous system entirely. Anya writhed, gasping, her hands clutching at the beanbag beads. Her ass felt like it had become the epicenter of her entire being, blazing hot and impossibly sensitive. "More," she begged, the word torn from her. "Please, Rune…"
Rune withdrew their fingers slowly, leaving her clenching around emptiness. Anya whimpered at the loss. She heard the soft click of the lube cap, the slick sound of Rune coating themselves. She turned her head further, catching a glimpse. Rune was kneeling, their shimmering hot pants pushed down just enough. Their cock, freed, was breathtaking – thick, long, flushed deep pink, the massive balls hanging heavy beneath. It looked impossibly large. A tremor of pure anticipation mixed with daunting awe ran through her.
Rune positioned themselves, the blunt, slick head pressing against her entrance. The pressure was immense. Solid. Unyielding. Anya held her breath.
"Trust me," Rune whispered again, their voice strained, green eyes locked on hers. Their hands gripped her hips firmly, anchoring her.
They pushed.
The stretch was beyond anything Anya had ever felt. A deep, burning pressure that consumed her entire awareness. She cried out, a ragged sound, her body instinctively trying to resist the invasion. Tears sprang to her eyes. "W-wait! Wait, it’s too—" The sensation morphed. The burning pressure didn't vanish, but beneath it, through it, bloomed an overwhelming wave of pure, electric pleasure so intense it was almost painful. It flooded her core, vibrating up her spine, making her gasp. Rune paused, buried only an inch or two inside, their own breath coming in sharp gasps.
"Anya?" The concern in Rune’s voice cut through the sensory storm.
"Don't… stop," she managed, her voice trembling. "Just… slow. Oh fuck… it’s… everything." The conflicting sensations warred – the intense stretch, the deep, resonant pleasure, the sheer, shocking fullness. Her soft cock twitched violently against the beanbag, pre-come smearing the fabric. She felt hyper-aware, every nerve screaming with input. "Move… please… just… little."
Rune obeyed. A fractional retreat, then a slow, deliberate push forward, sinking deeper. Inch by impossible inch. The stretch intensified, a deep ache that somehow amplified the raw pleasure coiling tighter and tighter inside her. Anya moaned, low and continuous, her hips rocking back minutely, seeking more of that overwhelming friction, more of that electric current. Rune’s groan echoed hers, a sound of pure, strained bliss.
They found a rhythm, agonizingly slow, each thrust a deep, deliberate glide that stretched her to her limits. The slide was slick, hot, impossibly intimate. The head of Rune’s cock brushed something deep inside – a spot Anya hadn't known existed – and fireworks exploded behind her eyelids. She screamed, her body convulsing. "T-there! Oh gods, Rune! There!"
Rune gasped, their thrust faltering for a second. "Fuck, Red… you feel…" They adjusted their angle, aiming for that spot again. The next thrust hit it dead-on. The electric current surged, blindingly intense, radiating outwards, making her breasts feel swollen and sensitive, her scalp tingle. Her orgasm didn't build; it detonated. It wasn't localized to her groin; it consumed her from the inside out. A raw, guttural cry tore from her throat as her whole body locked, shuddering violently, her ass clenching rhythmically around the massive intrusion. Waves of pure, unadulterated ecstasy washed over her, wave after wave, drowning out thought, leaving only sensation and the anchoring grip of Rune’s hands on her hips.
Rune moaned, a low, shuddering sound. Their thrusts became desperate, losing the careful rhythm, driven by Anya’s clenching heat. "Anya… I'm… can't…" The warning was strained, broken. They slammed deep, burying themselves to the hilt, a guttural cry ripped from their throat as their body went rigid. Anya felt the hot, powerful pulse deep inside her, the rhythmic throb of Rune’s release adding another layer to her own overwhelming aftershocks.
They collapsed together, Rune draped over Anya’s back, both gasping, slick with sweat. The only sounds were their ragged breathing and the idiotically cheerful hum of the vibrator on the table. Rune’s cock remained buried deep within her, a solid, softening weight. The intense fullness was still there, the deep stretch, but overlaid now with a profound, bone-deep satisfaction. Anya felt utterly spent, yet vibrantly alive.
Rune nuzzled the nape of her neck, their breath warm and uneven against her sweat-damp skin. "So…" they whispered, their voice wrecked. "Super-sensitive ass… verdict?"
Anya laughed, a breathless, shaky sound muffled by the beanbag. She shifted slightly, feeling the incredible stretch, the lingering pulses of aftershock. "Verdict is…" She paused, searching for the word, the reality of the experience settling over her like a warm, heavy blanket. "Needs further testing. Lots." She craned her neck to look back at Rune, a slow, utterly sated smile spreading across her face. "Your place or mine?"
Rune’s breath hitched, a warm puff against Anya’s neck. "Mine," they murmured, their voice rough with exhaustion and something else – anticipation? "Beanbag’s already broken in." Their softening cock slipped free with a slick, intimate sound, making Anya gasp at the sudden emptiness, the echo of that incredible stretch still resonating deep inside.
"Broken in is one way to put it," Anya chuckled weakly, rolling gingerly onto her side to face them. Every movement sent pleasant aftershocks through her sensitized nerves. She reached out, her fingers tracing the sharp line of Rune’s cheekbone, sticky with dried sweat. "Think it can handle round two?"
Rune’s green eyes, heavy-lidded but bright, met hers. A slow, lazy smile spread across their face. "Only one way to find out, Red." Their gaze drifted down Anya’s body, lingering on the soft swell of her breasts, the curve of her hip, her flaccid cock nestled against her thigh. "You’re… glowing. Seriously."
"Adrenaline? Endorphin overdose? Near-death experience?" Anya quipped, but a genuine warmth spread through her chest. She felt seen. "Mostly just really, really aware of my ass. In the best possible way." She shifted, wincing slightly at the deep, used ache. "Good kind of sore. Promise."
Rune nodded, their own gaze dropping briefly to the prominent bulge tenting their discarded hot pants. "Good." They pushed themselves up, moving with a dancer’s inherent grace despite the fatigue. "Shower first? We’re… sticky." They offered a hand.
Anya took it, letting Rune pull her up. Her legs trembled. Standing intensified the deep throb between her legs, a constant, low-level buzz of sensation centered inside her, radiating outwards. The humming vibrator on the table seemed to pulse in sync. "Gods, yes. Shower. Then… field research." She wobbled, grabbing Rune’s shoulder for balance. Their skin was warm, smooth beneath her palm.
The shower stall was tiny, instantly filling with steam that carried the scent of Rune’s sandalwood body wash. Anya leaned against the cool tile, letting the hot water sluice over her, washing away sweat and lube and the evidence of Rune’s release. It felt incredible on her skin, especially her breasts, the nipples pebbling tight and sensitive under the spray. Rune stood facing her, carefully soaping their arms, their gaze flicking between her face and the water cascading over her curves.
"Still sensitive?" Rune asked softly, their voice echoing slightly off the tiles. They reached out, not touching, just letting the soapy water run over their fingers near her hip.
"Uh-huh," Anya breathed, watching the water droplets cling to Rune’s blonde lashes. "Everywhere. Like my whole nervous system got rewired." She hesitated, then guided Rune’s soapy hand lower, towards the apex of her thighs, but not to her soft cock – to the curve of her ass cheek. "Especially here."
Rune’s breath caught. Their fingers, slick with soap, traced the swell of her buttock, feather-light, then dipped into the crease. Anya gasped, her head thumping back against the tile. It wasn’t penetration, just that light, slick touch over hyper-sensitive skin, but it sent a jolt straight to her core, making her knees buckle. "Fuck, Rune!"
"Okay, okay!" Rune chuckled, pulling their hand back slightly, but their eyes were dark, fascinated. "Noted. Super-conductor status confirmed." They moved closer, the water sluicing over them both, their bodies aligning. Rune’s impressive cock, already half-hard again, pressed against Anya’s thigh. The heat, the sheer presence of it, even softened, sparked another wave of that deep, internal thrum. Anya looked down, then back up at Rune, a question in her green eyes.
Rune blushed furiously. "Sorry, it’s just… you. The water. Everything." They tried to angle away, but the stall was too small.
"Don’t be sorry," Anya murmured. She reached down, her hand closing tentatively around the thick base. It was heavy, hot velvet over steel, pulsing faintly under her touch. Rune made a choked sound, their hips jerking minutely. "Can I…?" Anya asked, her thumb brushing the swollen head, smearing a bead of pre-come. The sheer size was still daunting, thrilling.
Rune nodded, swallowing hard, their gaze locked on her hand. "Yeah. Please." Their voice was thick.
Anya sank to her knees in the shower spray, the tiles cool beneath her. She leaned forward, her red hair plastered to her neck. The scent of sandalwood, clean skin, and Rune’s unique musk filled her nostrils. She took the head into her mouth, swirling her tongue experimentally over the slit, tasting salt and heat. Rune gasped above her, one hand bracing against the tile, the other tangling gently in her wet hair. "Anya… gods…"
She took more, slowly, working her mouth down the thick shaft, relaxing her jaw as much as possible. It was a stretch, a challenge, but the low moans coming from Rune, the feel of them trembling under her touch, fueled her. She hollowed her cheeks, sucking gently, her hand working the base they couldn't reach. Rune’s fingers tightened almost imperceptibly in her hair, a silent plea. "So good…" they breathed, hips rocking forward carefully. "Just like that… Red…" Anya felt the familiar thrum deep in her own pelvis intensify, a sympathetic echo to Rune’s building pleasure, centered entirely in her ass, her nerves alight. She looked up, meeting Rune’s dazed, blissful gaze, and took them deeper, letting the thick cock nudge the back of her throat, earning a broken cry.
Later, much later, they were tangled on Rune’s unmade bed, the incense burned low. Anya lay on her back, Rune draped partially over her, one leg hooked over hers, their head resting on her stomach. The deep, satisfying ache between Anya’s legs was a constant companion now, a low thrum of sensation that had ebbed and flowed all night – from the demanding stretch of Rune filling her again on the kitchen counter (her soft cock rubbing against the cool granite, sending unexpected sparks), to the slow, grinding rhythm on the bed where Rune had ridden her, Anya’s fingers finding that super-sensitive spot inside them, to the final, breathless time on the rug where Anya had taken control, guiding Rune onto their back and sinking slowly down onto that impossible length, discovering angles that made stars burst behind her eyelids.
The vibrator lay silent, finally battery-dead, on the floor. Anya traced idle patterns on Rune’s bare shoulder. They were both spent, skin damp with a fresh sheen of sweat, breathing still not quite even. The first grey light of dawn crept around the edges of the blackout curtains.
"Field research concluded?" Rune mumbled sleepily into her skin, their voice barely audible.
A slow, utterly sated smile spread across Anya’s face. She felt loose-limbed, wrung out, and vitally, vibrantly alive. The anxiety that had gripped her when she’d arrived, the fear of a pleasureless future, felt like a distant, ridiculous memory. Every nerve ending still hummed, not just in her groin, but everywhere, attuned to the warmth of Rune’s body, the softness of the sheets, the quiet of the apartment. The sensitivity wasn't a cage; it was a canvas, newly primed, waiting.
"Preliminary findings are… extremely promising," Anya murmured, her voice thick with contentment. Her fingers drifted lower, tracing the curve of Rune’s hipbone. "Demand further… longitudinal study." She felt Rune’s soft laugh vibrate against her stomach.
"Greedy," Rune sighed, but their hand found hers, lacing their fingers together. "You started it."
Anya looked down at their entwined fingers, then out at the sliver of dawn light. Her sexual future wasn't doomed. It was vast. Uncharted. Bright. She squeezed Rune's hand. "Yeah. Guess I did." The thrum deep inside her was a quiet, satisfied purr.