Chapter 5: The Anal Angle
The coffee in Aidan’s hand had gone cold. He’d been staring at the same line of code for twenty minutes, the characters blurring into a gray smear. His body felt like a borrowed thing, still humming with the ghost of a rhythm from Lena’s office. The memory wasn’t just visual; it was a full sensory replay—the tight heat, the choked sounds, the look in her eyes after. Clinical. Always clinical. Even when it wasn’t.
His desk phone buzzed, a jarring internal line. He jumped.
“Aidan. Conference room B. Fifteen minutes.” Lena’s voice was back to normal, crisp and dry, as if the ragged whispers of the morning had been someone else entirely. “Bring the supplemental kit from the supply closet. You know the one.”
He did. A small, unmarked black case. Inside were items not covered by the office’s regular budget: high-end lubricants, silicone stretching aids, soft restraints, waterproof pads. He’d been told to inventory it his second week. He’d thought it was a bizarre joke.
When he pushed into Conference Room B, the dynamic had shifted. This was a group project.
Lena stood at the head of the table, her tablet propped up. Sasha was there, leaning against the wall with her arms crossed, a defensive posture belied by the nervous tap of her heel. Cho sat quietly in a chair, her posture perfect, a notepad already open on her knees. Catriona was practically vibrating with energy by the window, her gaze fixing on Aidan the moment he entered.
“Close the door,” Lena said. “We have a cluster of related reader questions. The common variable is significant girth and anal receptivity. Sasha has relevant lived experience and has volunteered as the primary test subject.”
Sasha didn’t look like she’d volunteered. She looked like she’d been drafted. “I just said it comes up a lot in my inbox,” she muttered. “White boys with big dick fantasies. They never think about the logistics.”
“Hence, we provide the logistics,” Lena said smoothly. “The core question is about preparation and initial penetration. The anecdotal data from Sasha’s previous… personal research… suggests a pronounced physiological response she finds inconvenient for objective study.” A tiny, almost imperceptible smirk touched Lena’s lips. “She orgasms immediately upon penetration. Multiple times. It clouds the data.”
Sasha’s cheeks darkened. “It’s not inconvenient. It’s embarrassing. I say they can’t handle me, then I’m the one who loses it.”
Aidan stood frozen by the door, the case heavy in his hand. He felt like a walking, talking specialized tool.
“Today we map the pathway to penetration,” Lena continued, as if discussing a marketing funnel. “We control the variables. Lubricant type, amount, digital preparation, angle of entry. We document Sasha’s physical responses minute by minute. The goal is to see if, under controlled conditions, her climax can be delayed, or if it’s an inevitable neuromuscular reaction to a specific threshold of fullness.” She nodded to the large, padded therapy couch that had been brought into the room. “Sasha, assume the position. On your knees, forearms on the couch. Arch your back. Cho, you will stabilize her left hip. Catriona, the right. Note any tremors, clenching, or attempted withdrawal.”
The room moved with a surreal efficiency. Sasha, with a sigh that was all affected irritation, pushed off the wall and walked to the couch. She moved with a natural, rolling grace. She wore a simple knit dress. She hiked it up around her waist, revealing a deep blue thong that contrasted starkly with her skin. She didn’t look back as she got into position.
Cho and Catriona took their places, hands resting lightly on Sasha’s hips. Cho’s touch was clinical, measuring. Catriona’s grip was eager, possessive.
“Aidan.” Lena’s voice pulled him forward. “Open the kit. Use the silicone-based lubricant. Begin with two fingers. Report on resistance.”
His fingers felt thick and stupid. He squeezed lubricant onto his hand, the smell artificial and clean. The room was silent except for the hum of the fridge in the corner. He placed his slicked hand at the small of Sasha’s back, a warning touch. She flinched, then forced herself still.
He pushed the fabric of her thong aside. He applied more lubricant, then slowly pressed the pad of one finger against her.
“Tight,” he said, his voice too loud. “Very tight.”
“Note the initial tonic state,” Lena said, typing on her tablet. “Proceed.”
He worked one finger in, slowly. Sasha hissed, a sharp intake of breath. Her back muscles corded. “Relax,” he murmured, automatically.
“Don’t tell me to relax,” she snapped, but her body obeyed, opening another millimeter.
He added a second finger. The stretch was profound. Sasha groaned, a deep, guttural sound that seemed to surprise her. She dropped her forehead onto her forearms. Cho’s eyes were wide, watching. Catriona licked her lips.
“Significant stretching reported,” Lena narrated. “Recipient is vocal. Preparing for entry. Aidan, apply lubricant to yourself. A generous amount. When ready, attempt slow, steady penetration. Stop at her first verbal command.”
Aidan’s hands were slippery. The cold air of the conference room contrasted with the heat he knew was coming. He positioned himself, the broad head pressing where his fingers had been. The pressure was immense, a buckling resistance.
He pushed. Just the first inch.
Sasha cried out—a sharp, broken sound that cut off into a shuddering gasp. Her whole body locked up, then convulsed. A series of rapid, pulsing clenches gripped him, so tight it was almost painful. Her legs trembled violently. A low, continuous moan spilled from her lips.
“Climax,” Lena announced, her voice pure fascination. “Immediate. Upon initial penetration of approximately one inch. Duration… eight seconds. Continuing.” She leaned closer. “Sasha, can you speak? Rate the intensity.”
“Fuck… off,” Sasha panted, her face buried. Another wave seemed to hit her; her back arched sharply, pushing her hips back against him, taking another half-inch. She screamed, a raw, ragged thing that echoed off the whiteboards. “Jesus! Jesus, stop, just stop for a second!”
Aidan froze, buried a little deeper than he’d meant to be. She was pulsating around him, a relentless, rhythmic squeeze. Her skin was slick with sweat.
“Fascinating,” Lena breathed, typing furiously. “The command to stop followed a secondary, more intense orgasm. The pain-pleasure threshold appears to be a trigger. Are you in discomfort?”
“I’m in… fucking orbit,” Sasha sobbed, but it was mixed with a wild, breathless laugh. “It’s too much. It’s just too much.”
“But you took more,” Lena pointed out. “Your body initiated deeper accommodation during climax. That is the data point. The instinct is to retreat from pain. Your physiology sought more fullness. Aidan, proceed. Very slowly. Let her body guide the depth.”
It wasn’t sex. It was a guided dissection. Aidan moved, a tiny, incremental thrust. Each fraction of an inch was met with a fresh, shuddering cry from Sasha, another series of clenches, another cresting wave that left her gasping and swearing. Cho’s fingers dug into Sasha’s hip, holding her steady. Catriona’s eyes were glazed, her breath coming fast as she watched Aidan’s slow, relentless progress.
He was fully seated. The feeling was beyond anything—a crushing, silken heat that seemed to have its own heartbeat. Sasha was beyond words now, reduced to a constant, low whine that vibrated through both of them. Her earlier embarrassment was incinerated, leaving pure, undiluted sensation.
“Full penetration achieved,” Lena said. Her own voice had lost some of its crispness. She cleared her throat. “Now, we test mobility. Aidan, withdraw halfway and thrust back to full depth. One time. Observe.”
He did. The drag was exquisite. The push back in was met with a guttural scream from Sasha, her body bowing, then going completely limp for a second before tightening like a vise. “Again,” she begged, the word slurred. “Please, again.”
He looked at Lena. She gave a single, sharp nod.
He established a rhythm. It was slow, deep, and each stroke punched a broken sound from Sasha’s core. Her climaxes were no longer discrete events; they were a continuous, rolling peak that had her choking on air, her nails scraping the leather of the couch. Cho was scribbling frantically on her notepad, her own face flushed. Catriona was mouthing something, over and over, her grip on Sasha’s hip white-knuckled.
Aidan lost the plot. The data, the observers, the fluorescent lights—it all dissolved into the animal truth of the motion, the obscene, wet sounds of their joining, the shattered woman trembling beneath him. His own control was a thin wire, fraying.
“He’s going to come,” Catriona whispered, a hoarse prediction.
Lena’s head snapped up from her tablet. “Inside. For data on internal ejaculation response.”
It was the permission that snapped the wire. Aidan drove in deep and held, the release wrenched from him in thick pulses that Sasha felt immediately. Her reaction was apocalyptic. A scream tore from her throat, raw and endless, as her body seized in a final, catastrophic orgasm that lifted her knees off the floor before she collapsed, boneless, onto the couch, taking him down with her.
Silence, save for ragged, sobbing breaths.
Lena was the first to move. She stepped forward, peering at the point where their bodies were still joined. She made a final note on her tablet.
“Remarkable,” she said quietly. Then, to the room: “The data is conclusive. Preparation mitigates but does not prevent the reflex. The orgasmic response is a direct, involuntary reaction to stretching beyond a personal threshold. It is, effectively, a hardwired circuit.”
Aidan slowly pulled out. Sasha whimpered at the loss.
“Clean-up in the attached washroom,” Lena directed, all business again. “Sasha, I’ll need your subjective notes in an hour. Cho, Catriona, debrief with me.”
As Aidan stumbled towards the bathroom, the cold air hitting the sweat on his skin, he heard Catriona’s voice, hushed and thrilled: “My turn to be primary subject soon, right? For the domination queries?”
Lena’s reply was cool, absent. “We’ll see. The data comes first.”
In the bathroom, Aidan splashed water on his face. His reflection looked stranger every time—a man disappearing into a function. He thought of Sasha’s shattered expression, of Lena’s fascinated eyes. He wasn’t just a tool, he realized. He was the catalyst. And the experiment was just beginning to understand what it truly unleashed.