Chapter 1: A Father's Reluctant Duty
The clinic’s back room smelled like antiseptic and old wood. Rain tapped against the single barred window, streaking the grimy glass. Ichigo stared at a water stain on the ceiling, his fingers gripping the edges of the cracked examination table. The metal was cold through the thin paper sheet.
“Comfortable?” Isshin’s voice was too loud for the small space.
“It’s a table. What do you think?” Ichigo kept his eyes upward. His father’s shadow, cast by the flickering fluorescent light, loomed over him—a massive, dark shape.
“Right. Okay. Let’s… get the preliminaries out of the way.” Isshin cleared his throat. The sound was awkward, which was weird. His dad was never awkward. “The, uh, the manual says initial penetration should be clinical. To establish the baseline. So don’t go getting any ideas.”
“I don’t have ideas,” Ichigo said flatly. This was a regimen. A procedure. A weird, fucked-up one, but it had a purpose. A hundred. He just had to get through it. He could disassociate. He was good at that.
He heard the tear of the lube packet, the slick, wet sound. He forced his breathing even. Out. His body was a tool. This was maintenance.
The first press was a blunt, foreign pressure. Ichigo gritted his teeth. Clinical. He repeated it in his head. Clinical. It was just a physical adjustment, like popping a joint. Isshin’s hands were on his hips, big and calloused, holding him in place.
“You’re tighter than I figured,” Isshin grunted, pushing forward with a steady, insistent force.
“Sorry to disappoint,” Ichigo hissed, the stretch burning.
“Not a complaint. Just an observation. Breathe out.”
Ichigo exhaled, and his body yielded with a sudden, shocking give. He gasped. The fullness was immediate, a deep, intrusive occupancy. He felt every detail—the strain, the heat, the unbelievable intimacy of it. His knuckles were white on the table edges.
“Baseline established,” Isshin said, his voice strained. He wasn’t moving. “Okay. Step two is… rhythmic motion. To acclimatize the nervous system.”
“Just do it, old man. Stop narrating.”
The first few strokes were mechanical. Out. A steady, practiced pace. Ichigo focused on the water stain. It looked like a squid. The table groaned softly with each thrust. The sharp smell of antiseptic was still there, but underneath it now was the musk of sweat, the scent of his own body, something warmer.
“Speed increase. Now.” Isshin’s command was closer to his normal training bark.
The pace quickened. The slick, sliding sound filled the room, syncopated with the rain. The clinical detachment began to crack. A jolt went up Ichigo’s spine—not pain. Something else. He shifted, and the movement changed the angle. The next stroke dragged against something inside him that made his thighs twitch.
He bit down on a sound.
“You good?” Isshin’s rhythm didn’t falter.
“Fine.” The word came out tight.
But he wasn’t fine. The sensation was changing, mutating from intrusion to friction, from friction to a building heat. His own body was betraying him, responding to the relentless, pounding rhythm. A low thrum of pleasure began to mix with the ache. He felt a telltale tightness in his gut, a helpless stir of arousal that was absolutely not part of the plan.
“Gotta go faster. For the energy surge.” Isshin was breathing harder now. His grip on Ichigo’s hips was vise-like, possessive. The slaps of skin grew louder, sharper, echoing off the linoleum.
Each drive punched a quiet, punched-out noise from Ichigo’s throat. He couldn’t stop them. They were small, helpless uh… uh… uh sounds that evaporated into the humid air. He was hard now, painfully so, trapped between his stomach and the cold paper. The shame was a bright, sharp thing in his chest, but it was being drowned out by a raw, gathering need.
“You’re taking it so well,” Isshin grunted, and his voice was thick with something that wasn’t just effort. Pride, maybe. Awe. “My strong boy.”
The words shouldn’t have mattered. They landed on Ichigo’s feverish brain and detonated. The pleasure coiled tighter, hotter. He was pushing back now, meeting each thrust, chasing that devastating friction. The clinical premise was ash. All that was left was this—the animal reality of being filled, used, driven toward a peak by his own father.
“Isshin—” The name, not ‘old man,’ spilled out. A plea.
“I know. I know. I’ve got you.” The pace became brutal, perfect. Ichigo’s world narrowed to the sensation of being split open and completed at once. His moans were unchecked, loud, wanton things. He was babbling, nonsense syllables, yes and more and please.
He came with a shattered cry, his body seizing, vision whiting out. The climax ripped through him, wrenching and profound. Isshin followed him over, a final, deep snarl muffled against his shoulder, a hot flood that Ichigo felt deep inside, marking the first completion.
For a long minute, there was only the sound of their ragged breaths and the rain. The flickering light hummed.
Ichigo went boneless on the table, spent, devastated. The phantom pulses of his own heartbeat echoed in places he’d never noticed before. Isshin’s weight was heavy on him, a warm, damp anchor.
The hand that came up to rub his back was gentle. Almost reverent.
“One down,” Isshin murmured, his lips brushing the sweat-damp hair at Ichigo’s temple. The words were soft, but they hung in the air, a promise and a threat.
Ninety-nine to go.