Chapter 5: Late Night Experiment
The lingering antiseptic tang of Zara’s office still haunted Ilda’s nostrils, stubbornly resisting the familiar cloud of sandalwood incense swirling through her cramped apartment. She slumped on her worn velvet couch, legs sprawled over Ren’s lap, staring at the water stain on the ceiling shaped vaguely like a surprised duck. Her fingers unconsciously traced the loose, empty pouch of skin between her thighs, the repetitive motion a nervous tic since the accident. It felt like petting a deflated balloon animal – weird, sad, and utterly necessary to stop it shriveling into nothing.
"Stop fiddling with the sad balloon, babe," Ren chirped, not looking up from her phone. She idly scratched her own lean stomach, the fabric of her tank top straining slightly over her constant, undeniable erection. "It’s making me depressed by proxy." Ren’s own small cock, a persistent 7cm presence she treated as a perpetually erect joke prop, tented her shorts.
"Shut up, it needs the attention," Ilda mumbled, her gaze still fixed on the duck. The image of Zara’s shocked face, the specimen cup vanishing into her pocket, flashed unwanted behind her eyes. Research. Right. "Unlike some people’s overeager little friend." She nudged Ren’s constant bulge with her foot.
"Hey! Perky is a virtue," Ren shot back, finally pocketing her phone. She shifted, her hand landing casually on Ilda’s bare thigh, warm and familiar. Her thumb began tracing lazy circles, drifting perilously close to the loose sac Ilda had just been manipulating. "Besides, someone has to maintain morale around here. You’ve been radiating ‘doom cloud’ since you got back from the torture chamber. Doc Zara give you bad news?" Ren’s tone softened slightly, genuine concern under the bravado.
Ilda hesitated. Bad news? Exploding into silent, mind-shattering climax on the floor while her surgeon collected the evidence wasn’t exactly covered in the post-op pamphlet. "No," she lied, her voice thick. "Just... reminded me. Of everything." She gestured vaguely downwards. "The emptiness. The... sensitivity."
Ren’s thumb stilled its circling, then resumed, the touch firmer, more deliberate. Her fingers brushed the perimeter of the empty sac. "This thing," she murmured, her voice dropping lower, losing its usual playful edge. She wasn't looking at Ilda’s face anymore; her focus was entirely on the soft skin beneath her touch. "It’s so... pliant. Doesn’t feel like something’s missing. Feels like... potential." Her fingers dipped slightly, exploring the give of the skin, the way it yielded to pressure. "Remember how you used to play with your balls? Big, heavy, swinging things?"
Ilda flinched. The memory was sharp, visceral. A pang of phantom sensation, followed by the crushing weight of absence. "Yeah," she breathed, the word barely audible. Ren’s exploration felt different from her own anxious fiddling. It held a strange curiosity, bordering on fascination. The hypersensitivity Zara had documented began to hum, a low-level buzz reacting to the contact, the focused attention. It wasn't painful, not yet. It was... alert.
Ren’s other hand joined, gently cradling the loose sac. She seemed mesmerized by its texture, its capacity. "You keep it soft," she observed, almost to herself. "Playing with it. Smart." Her gaze flickered up to Ilda’s tiny, flaccid cock, resting against her thigh like a sleeping grub. "And this little guy?" Her fingers drifted from the sac, feather-light, tracing the edge of the small nub. Ilda sucked in a breath as the hypersensitivity instantly sharpened, a jolt running straight to her core. "Still sensitive too? Like the doc said?"
"Everything is sensitive, Ren," Ilda whispered, a tremor running through her. The ghost of Zara’s intense gaze, her ragged breathing, superimposed itself over Ren’s familiar face. "Especially... especially that."
Ren’s eyes held hers for a second – a flicker of understanding, perhaps, of the sheer strangeness of Ilda’s new reality. Then, a spark of her usual reckless energy lit them. "Let me try something," she murmured, her voice husky with sudden, impulsive intent. Before Ilda could protest, Ren shifted, sliding down the couch until she knelt on the rug-strewn floor between Ilda’s legs. Her small hands guided Ilda’s knees apart gently but firmly.
"Ren, what—?" Ilda began, her heart pounding against her ribs. This felt dangerous. Intimate in a way their friendship hadn't navigated before. Different from the chaotic bathhouse, different from the charged violation of Zara’s office.
"Shhh," Ren breathed, her breath warm against Ilda’s inner thigh. "Science experiment." Her grin was quick, nervous. "Hold onto the sad balloon." She gave the loose sac a gentle squeeze, then leaned forward.
Ilda felt the first, tentative touch of Ren’s lips against the tiny nub. It was soft, questioning. The hypersensitivity ignited instantly, a bright flare of sensation that made Ilda gasp and arch her back slightly, her fingers instinctively tightening on the yielding skin of her empty scrotum. Ren’s mouth closed around the small cock, warm and wet. She began to suckle gently, experimentally, her tongue swirling over the ultra-sensitive tip.
It was... pleasant. A warm, buzzing pressure centered right where the hypersensitivity lived. Familiar, yet profoundly altered. Like trying to sip champagne through a coffee stirrer. The ghost of past pleasure was there, but muted, distant, overshadowed by the sheer intensity of the localized sensation. Ilda moaned, a low, ragged sound, her hips lifting slightly off the couch cushions. She wasn't climbing towards climax, but drowning in a pool of amplified, almost painful sensitivity. Good, but incomplete. Like hearing only the high notes of a symphony.
Ren felt the tension, the lack of building fire. She pulled back slightly, leaving Ilda’s small cock slick and glistening, throbbing visibly with the hypersensitivity Ren had stirred. Ren looked up, her brow furrowed, lips damp. "Okay," she said, breathless. "Definitely sensitive. Like... really sensitive. But..." She trailed off, her gaze drifting lower, past the tiny cock, past the sac Ilda was white-knuckling. Her focus landed squarely on Ilda’s entrance, nestled between her cheeks. "The doc said... mouth and ass, right? After?"
Ilda’s breath hitched. She hadn’t explored that yet. The bathhouse discovery had been triggered externally. The encounter with Zara... too chaotic, too focused elsewhere. Anxiety warred with the buzzing hypersensitivity still radiating from her nub. "Y-yeah," she stammered. "She said... neural pathways... rerouting."
"Right," Ren murmured, her voice taking on a new, determined quality. She shuffled closer on her knees, her small hands sliding under Ilda’s thighs, lifting them slightly. Her thumbs pressed gently against Ilda’s inner cheeks, spreading them apart. The cool air of the apartment hit the exposed ring of muscle, making Ilda flinch. Ren’s gaze was intense, focused. "Let’s map those pathways."
Ilda braced herself, expecting more focused intensity, more overwhelming sensation. Ren leaned in. Her tongue – warm, broad, and startlingly wet – didn't flick or probe tentatively. It pressed flat and firm against Ilda’s hole, a broad, wet stroke from perineum to tailbone. It wasn't teasing. It was claiming.
The effect was instantaneous and catastrophic.
Where the hypersensitivity at her cock had been a bright flare, this was a supernova detonating deep within her pelvis. White-hot lightning ripped up her spine, branching out through her nerves like fracturing glass. Every muscle in her body locked rigid. Her back arched violently off the couch, a guttural, wordless scream tearing from her throat – raw, primal, utterly beyond her control. The world dissolved into pure sensation: the incredible heat and wet pressure of Ren’s tongue, the rough scrape of the velvet fabric against her shoulders, the dizzying scent of incense and sweat, and an overwhelming, all-consuming wave of pleasure so intense it bordered on agony.
Ren froze for a fraction of a second, startled by the violence of the reaction. Then, fueled by Ilda’s convulsing hips and the ragged, keening sounds pouring from her mouth, she doubled down. Her tongue pressed harder, circling the clenching muscle, then plunging shallowly inside, relentless and demanding.
Ilda was gone. Obliterated. The hypersensitivity in her cock was forgotten, a distant spark compared to the wildfire consuming her ass. Each firm lap, each insistent press, each wet intrusion sent shockwaves through her core. Her vision spotted. Her fingers tore at the couch cushions. The loose sac she’d been clutching hung forgotten. This wasn't a climb; it was a freefall into a chasm of sensation she never knew existed. Pleasure wasn't building; it was a constant, devastating earthquake. She came without warning, without the familiar tightening surge. It was an eruption triggered solely by the pressure on her ass. Clear fluid, minimal but undeniable, beaded at the base of her tiny cock and dripped onto the loose skin below. Her scream dissolved into choked, rhythmic gasps, her body shuddering uncontrollably under Ren’s relentless tongue.
Finally, Ren pulled back, breathing hard. She stared, wide-eyed, at the wreckage before her: Ilda trembling violently, tears leaking from her squeezed-shut eyes, her body still spasming with aftershocks, the evidence of her climax glistening in the dim light. Ren wiped her mouth with the back of her hand, her expression a mix of awe, shock, and sheer wonder. "Holy... fucking... hell," she breathed, her usual bravado utterly shattered. "Zara wasn't kidding about the rerouting." She looked down at her own small cock, still straining eagerly against her shorts, then back at Ilda’s limp form. "Guess you're not topping anytime soon, huh?" The joke, her usual armor, landed weakly in the charged silence, shattering the intense moment into shards of absurdity.
Silence pooled thickly after Ren’s feeble joke, broken only by Ilda’s ragged breathing and the frantic thump of her own heart against her ribs. The velvet couch cushion, rough under her clutching fingers moments before, now felt impossibly soft, cradling her trembling body. Ren remained kneeling, her damp chin glistening, eyes wide and fixed on Ilda’s face, searching for… anger? Horror? Regret?
A tremor, different from the aftershocks, started deep in Ilda’s chest. It climbed, shaky and breathless, escaping her lips as a wet, choked puff of air. Then another. And another. It wasn't hysterics. It was disbelief. The sheer, catastrophic absurdity of it all – Ren’s scientific curiosity, the violent, humiliating climax triggered solely by her ass, the utter ruin of her previous identity – crashed over her like a wave. The sound grew louder, less shaky, more genuine, bubbling up from a place she thought despair had claimed. It shook her shoulders, squeezed tears from her eyes, and filled the incense-heavy air.
Ren flinched, then cautiously echoed it, a nervous giggle escaping her. "Whoa, okay," she breathed, scrambling back onto the couch, her perpetually alert cock bumping awkwardly against Ilda’s hip. "Didn’t mean to break you that hard. You good? Like, genuinely good?"
Ilda wiped her eyes, still gasping through the laughter. She looked down at herself – the loose, empty sac resting limply on the cushion, the tiny, glistening nub, the evidence of her absurd climax smeared on her inner thigh. "Good?" she echoed, her voice raw but clear. "Ren, I just had an earthquake in my pelvis because you licked my butthole." A fresh peal of laughter escaped her, edged with hysteria but undeniably real. "The bathhouse ghost was a preview. Zara’s ‘research’ was… intense. But this?" She gestured vaguely at the damp spot. "This is next-level ridiculous."
Ren grinned, relief washing over her face, her own laughter gaining confidence. "Ridiculously effective, you mean! Holy shit, Ilda, the noise you made! Sounded like you were being murdered by a very enthusiastic badger!" She nudged Ilda playfully. "Doc Zara’s neural pathways aren’t just rerouting, babe, they built a goddamn superhighway straight to your ass!"
The laughter subsided, leaving Ilda breathless but strangely light. The crushing weight of loss, the suffocating despair that had clung since the accident, felt… thinner. Cracked. She looked at the loose skin she’d been obsessively fiddling with to keep it from shrinking. Not a symbol of absence anymore. Not just a 'sad balloon'. It was… hers. Part of this bizarre new landscape. Zara’s clinical interest, Ren’s reckless experiment, the bathhouse ghost’s unwitting discovery – they were all signposts pointing somewhere unknown. She touched the empty sac, not with anxiety, but with a dawning, fierce curiosity. It felt warm, resilient.
"You know what, Ren?" Ilda said, her voice steadying, a spark of her old defiance igniting in her eyes, chasing the lingering tears away. She met Ren’s gaze, a slow, deliberate smile spreading across her face. "Fuck despair. Seriously. Fuck it." Her hand pressed flat against the yielding skin, a claim. "This body? The hypersensitive mess? The rerouted superhighway? It’s mine. And it’s… weird as hell. But it’s exciting." She took a deep breath, the sandalwood incense suddenly sharp and invigorating. "There’s a whole damn unexplored country down here now. Doc Zara wants research? Fine. I’m going exploring."
Ren’s grin widened into pure, delighted mischief. She leaned in, her small, persistent cock bobbing with eagerness. "Exploration team reporting for duty, Captain," she declared, giving Ilda’s thigh a playful slap. "First order of business
Ren’s playful slap still tingled on Ilda’s thigh, a counterpoint to the lingering aftershocks deep in her core. The absurd laughter had cleared the air, leaving behind a crackling current of possibility beneath the sandalwood haze. "First order," Ilda stated, her voice roughened by recent screams but laced with newfound command, "is ditching the shorts." She nudged the persistent bulge tenting Ren’s fabric. "That little periscope needs deploying."
"Deploying, aye aye!" Ren scrambled up, peeling off her shorts and underwear in one frantic motion. Her small cock, freed, stood rigidly at attention, a proud 7cm salute to the mission. The sight wasn't intimidating; it was earnest, almost comically determined against the backdrop of Ilda’s transformed landscape – the loose, empty sac, the tiny, spent nub.
Ilda shifted, rolling onto her stomach. The velvet felt plush against her flushed skin, cool where her cheek pressed. She arched her back slightly, presenting herself. The vulnerability was raw, terrifying, yet charged with a fierce curiosity that overrode the fear. "Okay, navigator," she muttered into the cushion, the words muffled but clear. "Chart the course. Slowly." Her fingers dug into the velvet, bracing for impact.
Ren knelt behind her, her breath coming faster now, a warm puff against Ilda’s exposed skin. Her fingers, slick with spit, traced the outer ring, then pressed gently, testing the give. "Still tight," she murmured, more to herself. "Gotta be careful… hypersensitive superhighway ahead." The tip of her cock nudged against the entrance. There was no slickness beyond saliva, just intense, quivering readiness radiating from Ilda’s core. Ren pushed.
The blunt pressure intensified, a focused invasion unlike the wide, wet assault of her tongue. Ilda tensed, a gasp catching in her throat. It was strange, unfamiliar pressure, stretching her in a way she hadn't felt since… well, since she was the one doing the invading. The hypersensitivity didn't scream instantly; it listened, a vast network suddenly registering a new, specific input. Ren pushed again, a little firmer, her small cock breaching the first ring of muscle with a soft, wet pop.
Oh. It wasn't pain. It was… information. A sharp, distinct signal flooding the rerouted pathways Zara had described. Electricity arced from the point of entry, branching outwards, igniting nerves previously dormant or overshadowed. Ilda moaned, low and involuntary, her hips pushing back instinctively against the pressure. "More," she breathed, the word thick with surprise.
Ren needed no further encouragement. She sank in fully, her small length burying itself to the hilt in one smooth slide. Her pelvis met Ilda’s cheeks with a soft smack. "Holy fuck," Ren gasped, her hands gripping Ilda’s hips. "You're… clenching. Like mad."
It was true. Ilda’s body, untethered from its old climax patterns and rewired for this new sensation, was grasping Ren’s cock with desperate, rhythmic pulses. Each internal squeeze sent fresh bolts of sensation rocketing through Ilda – not the mind-blasting detonation of the tongue, but a deep, resonant thrumming that built steadily, note by note. It felt less like being shattered and more like being played, a complex instrument responding perfectly to its first true touch.
"Move," Ilda commanded, her voice trembling with the effort of containing the building storm inside her. "Just… move."
Ren pulled back, the drag exquisite friction against hyper-alert nerves, then pushed in again. Slow. Deliberate. Testing the resonance. Each stroke was a revelation. Ilda felt every millimeter of Ren’s small cock, the ridge of her head, the subtle pulse within her. It wasn't the size that mattered; it was the precision, the way Ren filled the newly sensitive space perfectly, hitting focal points of sensation Ilda never knew she possessed. Her moans became a continuous, ragged counterpoint to Ren’s shallow breaths and the slick sounds of movement. Her fingers clawed uselessly at the cushion, her vision blurring.
"It’s… building," Ilda choked out, the tremble in her voice escalating to a full-body shudder. "Different… heavier…" It wasn't localized to her cock anymore. It was deep within her pelvis, a swelling pressure centered around Ren’s thrusts, coiling tighter with each pass. The hypersensitivity wasn’t screaming; it was singing, a low, powerful chord vibrating through her entire being. Her empty sac tightened instinctively against the cushion, a phantom echo.
Ren felt the change, the increasing tension in the muscles gripping her. "Yeah?" she gasped, her own hips snapping forward with a little more force. "Show me." She leaned over Ilda’s back, her small breasts pressing against Ilda’s shoulder blades, her breath hot on Ilda’s neck. "Show me the new geography."
That did it. The coil snapped. Pleasure didn't explode outwards; it imploded, collapsing inwards with crushing, glorious force. Ilda didn’t scream this time; she howled, a raw, guttural sound ripped from her chest as her back arched violently off the couch. Her body convulsed around Ren’s cock, milking it with powerful, involuntary spasms. Clear fluid, a startlingly generous quantity considering the source, pulsed from her tiny nub, soaking the velvet beneath her and slicking her loose sac. It wasn’t orgasm as she knew it; it was a seismic event originating deep within her core, radiating through her rewired nervous system, leaving her trembling, gasping, utterly spent.
Ren held still, buried deep, as Ilda’s spasms gradually subsided into trembling aftershocks. She slowly withdrew, her small cock glistening. She stared at Ilda’s limp form, the damp patch spreading beneath her hips, the rise and fall of her back as she struggled to breathe. A slow, incredulous grin spread across Ren’s face. "Well, Captain," she whispered, her own voice shaky with awe. "We found the treasure map." She gently traced a finger down Ilda’s spine, feeling the tremors. "And X definitely marked the spot." Ilda, face buried in velvet, managed a weak, breathless laugh that dissolved into a contented sigh. Her fingers, relaxed now, brushed the warm, resilient skin of her empty sac – not a void, not a symbol of loss, but the anchor of her new, uncharted territory. The exploration, she realized, head fuzzy and body humming, had only just begun.