Chapter 11: The Collar's First Night
The collar was still warm against his skin when consciousness crept back in, slow and syrupy like honey dripping from a spoon. Kan's eyes fluttered open, the ceiling mirror catching his reflection in fragmented pieces—a flush of skin here, a tangled limb there, the silver glint at his throat that seemed to pulse with its own quiet life.
His belly was still swollen, a tender weight that shifted when he breathed. The sheets beneath him were soaked through, ruined beyond repair. He should have cared about that. He didn't.
Rei's footsteps padded across the floor, and then warm water was trickling down Kan's thighs, gentle and reverent. A cloth followed, soft against his oversensitive skin, wiping away the evidence of their excess. Kan hissed when the fabric grazed his entrance, still gaping, still raw.
"Shh." Rei's voice was a low murmur. "Almost done."
Kan let his head loll to the side, watching Rei work. There was something deeply intimate about being cleaned by the man who had just wrecked him, something that made his chest ache in ways he didn't have words for. Rei's brow was furrowed in concentration, his touch methodical, careful—as if Kan were something precious rather than a used-up thing dripping with his seed.
The cloth moved higher, tracing the curve of Kan's hip. Then Rei's fingers brushed against the collar.
Kan's entire body seized. His hole clenched violently, a reflexive spasm that made him gasp. The sensation was electric, shooting from his throat down to his groin, reigniting embers he thought had been thoroughly extinguished.
Rei froze. His eyes lifted, dark and knowing, meeting Kan's gaze in the mirror's reflection.
"Already needy again?" Rei's voice was silk wrapped around steel, curious and sharp all at once.
Kan's mouth opened, but nothing came out. Because yes. Yes, he was needy. His body was screaming for more even as his muscles protested, even as his belly still bulged with Rei's cum. The collar was a trigger he hadn't anticipated, a direct line to something primal and desperate inside him.
"It's the collar," Kan managed, his voice wrecked. "Every time you touch it, I—"
"I know." Rei's fingers traced the silver band again, feather-light. Kan whimpered, his hips bucking involuntarily. "Phra Chan's work is... effective. The collar responds to touch. Especially the touch of someone who holds power over you."
Kan's breath came in short, sharp gasps. His body was betraying him, his cock stirring despite having nothing left to give, his hole clenching around emptiness, desperate to be filled again.
"Please," he heard himself say. The word felt strange on his tongue, but right. So right.
Rei's smile was slow, devastating. "Please what?"
Kan's cheeks burned. But the need was overwhelming, consuming, wiping away any semblance of pride. "Please fuck me again. I need you inside me. I need to feel the knot stretch me open—"
Rei didn't let him finish. He pushed Kan onto his back, spreading his legs wide. Kan's swollen belly shifted, sloshing obscenely, and the sensation made him moan. Rei's hands gripped his thighs, pushing them toward his chest, exposing everything.
The gaping hole was still leaking, a steady trickle of white seeping from the wrecked rim. Rei's fingers traced the edge of it, collecting the cum, pushing it back inside. Kan cried out at the intrusion, his body eagerly accepting the digits, sucking them deeper.
"You're so hungry for it," Rei observed, his voice thick with awe. "Like you were made for this. Made to be filled."
"Yes," Kan sobbed. "Yes, I was. I am. Please, Rei, stop teasing—"
Rei's fingers curled inside him, finding the spot that made Kan's vision white out. He pressed hard, rubbing against the prostate with merciless precision. Kan screamed, his hands flying to grip Rei's wrist, though he didn't have the strength to pull him away.
"You came so much," Rei murmured, working his fingers deeper. "But I don't think you're done yet, are you? I think you need more. I think you need to be stuffed until you can't think."
"Please—" Kan's voice broke. "Please, Rei, I need your cock. I need the knot. I need—"
Rei withdrew his fingers, and Kan sobbed at the emptiness. But then Rei was positioning himself, his cock somehow still hard, still massive, despite having already come twice. The serum had done more than give him a knot—it had given him endurance beyond human limits.
The head pressed against Kan's entrance. Kan could feel the beginning of the knot, already swelling, already demanding entry. He begged. He wasn't ashamed of it anymore. He needed this too much for shame.
"Do it," Kan gasped. "Just push it in. Break me. I don't care. I just need—"
Rei thrust forward.
The knot forced its way inside in one brutal motion, and Kan's world exploded into white-hot pleasure. The stretch was agonizing, overwhelming, more intense than the first time because his body was already so sensitive, so wrecked. He screamed, a raw and guttural sound that echoed off the walls.
The knot locked into place, sealing them together. Kan could feel the pulse of it, the way it had expanded to fill every inch of him. His belly, already swollen from the previous load, now pressed against Rei's pelvis, making him feel impossibly, devastatingly full.
"Oh god," Kan whimpered. "Oh god, oh god, oh god—"
Rei didn't give him time to adjust. He began to move, pulling back just enough for the knot to drag against Kan's walls, then slamming forward again. The motion was slower than before, more deliberate. Rei was savoring this, drawing out every sensation.
"You feel incredible," Rei groaned, his forehead slick with sweat. "So tight. So perfect. Like this is exactly where I'm meant to be."
Kan couldn't form words. His mouth hung open, drool spilling from the corner, his eyes rolled back. Every thrust sent shockwaves through his body, the fullness reaching depths he hadn't known existed.
Rei leaned forward, his mouth finding Kan's chest. His tongue traced a wet path to Kan's nipple, circling the sensitive bud before sucking it between his lips. Kan shrieked, his back arching off the bed.
"No—" he gasped. "Rei, that's too much—"
But Rei didn't stop. He sucked harder, his teeth grazing the tender flesh, worrying it until it was red and throbbing. His fingers found the other nipple, pinching and twisting with cruel precision.
Kan's body convulsed. The sensations were converging—the fullness in his ass, the assault on his nipples, the weight of the collar around his throat—all of it building toward something catastrophic.
"I can't," Kan sobbed. "I can't, I can't, it's too much—"
"You can." Rei's voice was dark, commanding. "And you will. You'll take everything I give you, and you'll beg for more."
The knot swelled further, if that was possible. Kan felt his hole stretching to its absolute limit, the ring of muscle burning with the strain. Rei continued to move, each thrust grinding against his prostate, sending bolts of lightning through his nervous system.
Rei switched to the other nipple, giving it the same brutal attention. Kan's hands fisted in the sheets, tearing them. His body was no longer his own. It belonged to Rei. To the collar. To whatever dark path they were walking together.
"I'm going to come again," Rei growled against Kan's chest. "And you're going to take every drop. You're going to let me fill you until you're drowning in it."
"Yes," Kan begged. "Yes, fill me. Make me yours. Please—"
Rei's hips slammed forward one final time, the knot locking impossibly tight. And then the flood began.
Kan felt the first pulse of hot cum against his walls and screamed. His own cock, which had been limp and exhausted, suddenly erupted—a full orgasm wracking his body without any stimulation. He came untouched, his seed spraying across his own stomach and chest, mixing with the sweat and drool.
But Rei wasn't done. The second pulse followed, then a third, each one filling Kan further. His belly began to distend again, the swelling becoming obscene, grotesque. Kan could feel himself stretching, the skin taught and burning, the weight of the cum pressing against his organs.
Another pulse. Another scream. Kan's body was wracked with continuous orgasm, his muscles seizing and releasing in rapid succession. His vision went white, then black, then white again. He couldn't tell up from down, couldn't remember his own name, couldn't do anything except feel.
The knot pulsed again and again, each flood of come triggering another wave of pleasure. Kan's belly was a tight, swollen drum now, visibly pregnant with Rei's seed. He could feel it pressing against his lungs, making it hard to breathe. It was terrifying. It was transcendent.
"Please," Kan sobbed, though he didn't know what he was begging for. "Please, Rei, I can't take any more—"
But he could. He knew he could. His body was built for this, had been reborn for this purpose. He took everything Rei gave him and craved more.
Rei finally stilled, the knot slowly beginning to shrink as his orgasm subsided. But he didn't pull out immediately. Instead, he pressed his hand against Kan's swollen belly, feeling his own work through the thin layer of skin.
"Look at you," Rei murmured, wonder in his voice. "So full. So perfect. Like you were made to carry my seed."
Kan's eyes were glassy, unfocused. He couldn't speak. His mouth moved soundlessly, trying to form words that wouldn't come.
Rei kissed him then, gentle despite the brutality of the past hour. Kan tasted himself on Rei's lips—the salt of sweat, the musk of sex, something that was purely Rei. He kissed back weakly, his arms too heavy to lift.
"I want to do something," Rei said when they broke apart. "Something that might seem strange. But I think you'll like it."
Kan blinked, trying to focus. "What?"
Rei shifted, and Kan gasped as the knot—now fully deflated—slid out of him with a wet, obscene sound. A torrent of cum followed, spilling onto the already-ruined sheets. Kan felt hollow without it, empty in a way that ached.
But Rei didn't seem concerned. He shifted position, settling between Kan's legs again. His hands found Kan's stomach, pressing gently against the still-swollen bulge.
"Close your eyes," Rei instructed. "Trust me."
Kan did. He heard something—a drawer opening, a soft click. Then Rei's hands returned to his belly, and Kan felt a strange warmth spreading through him. It wasn't the heat of a body. It was something else. Something... magical.
"Do you feel it?" Rei asked, his voice low.
Kan nodded. The warmth was seeping into him, deep into his core. His belly began to tingle, then to vibrate. The bulge started to recede, slowly but surely, the excess cum seeming to... absorb into his body?
"What's happening?" Kan's voice was barely a whisper. "What did you do?"
"A cleansing serum," Rei explained. "Phra Chan gave it to me before we left. It helps the body process excess... fluids. Prevents any lasting damage."
Kan opened his eyes, looking down. His belly was still swollen, but less so. The tingling sensation was almost pleasant now, a gentle buzzing that seemed to be repairing him from the inside.
"That's—" Kan paused, searching for words. "That's thoughtful. Unexpected, but thoughtful."
Rei smiled, a hint of that old playfulness returning. "I take care of my toys. Especially the ones I plan on using again."
The words sent a shiver down Kan's spine. He should have felt objectified. Instead, he felt cherished.
"How long until I'm ready for you again?" Kan asked, his voice surprising him with its eagerness.
Rei laughed, soft and warm. "Give it an hour. Maybe two. We've got all night." He traced a finger along the collar, and Kan's body shuddered. "And we've got a lot to explore."
Kan's hand came up, covering Rei's against the collar. He held it there, feeling the warmth of Rei's skin against the cool metal, the pulse of his heartbeat through both of them.
"I meant what I said," Kan murmured. "About being ready. About exploring Phra Chan's world together. I don't want to hold anything back."
Rei's expression softened. "I know. And I want that too. But we don't have to do everything at once. There's no deadline, no finish line." He pressed a kiss to Kan's forehead. "We have time."
The words settled over Kan like a blanket, warm and comforting. Time. He had time. Time to explore, time to learn, time to discover all the hidden depths of his desires.
His stomach gurgled suddenly, a jarring sound that broke the tension. Rei laughed, the sound bright and genuine.
"Hungry?" Rei asked.
"Starving, actually." Kan's cheeks flushed with embarrassment. "I haven't eaten since—" He paused, trying to remember. "Actually, I think I forgot lunch today. And breakfast."
Rei shook his head, his eyes fond. "You're going to need your strength. Come on." He stood, extending a hand to Kan. "Let's get some food in you before I have to fuck you again."
Kan took his hand, letting Rei pull him upright. His legs were shaky, barely able to hold his weight, but Rei was there, steadying him.
"I can't believe I'm saying this," Kan admitted, "but food actually sounds good right now. Maybe some pad thai?"
Rei's eyebrows rose in amusement. "After everything we just did, you're craving pad thai?"
"Don't judge me." Kan's stomach gurgled again. "My body just did a marathon. It needs carbs."
Rei grinned, pulling Kan close for a brief kiss. "Fine. Pad thai it is. But I'm ordering extra spicy."
"Deal."
They moved toward the kitchen slowly, Kan leaning heavily against Rei's side. The collar remained around his neck, a constant weight, a constant reminder. And as they passed by the ceiling mirror, Kan caught his reflection once more—the silver glint at his throat, the flush still high on his cheekbones, the satisfied exhaustion in his eyes.
He barely recognized himself. But he liked what he saw.
And somewhere in the back of his mind, he wondered what Phra Chan would think when they returned. What new depths of desire he would uncover with the collar already in place. What other hidden reaches of himself he might discover, now that he had someone strong enough to take him there.
The image of Phra Chan's knowing smile flickered in his memory, and Kan swore he could feel the collar warm against his skin.
They weren't done yet.
They were only just beginning.
They were only just beginning.
The kitchen was a different world from the bedroom—bright, sterile, mundane. Kan leaned against the counter while Rei moved through the space with practiced ease, pulling ingredients from the fridge, setting a wok on the stove. The collar caught the fluorescent light, glinting as Kan shifted his weight.
"You're staring," Rei said without turning around.
"Can you blame me?" Kan's voice was still rough from screaming. "After what you did to me, I'm surprised I can walk at all."
Rei's laugh was warm, genuine. "You'll be walking fine in an hour. The serum Phra Chan gave me has some interesting side effects for the receiver too. Faster healing. Increased stamina." He glanced over his shoulder, a wicked glint in his eye. "Increased sensitivity."
Kan's breath hitched. He could feel it now that Rei mentioned it—a lingering thrum beneath his skin, like his nerve endings had been rewired and turned up to maximum gain. Every brush of air against his oversensitive nipples sent sparks through his chest. His hole, still sore and gaping, twitched with phantom fullness.
"That's not fair," Kan managed. "You're telling me I'm going to be even more sensitive when you fuck me again?"
Rei's smile was slow, predatory. "I'm telling you that when I fuck you again, you're going to feel every inch. Every pulse. Every drop." He turned back to the stove, tossing vegetables into the wok with practiced skill. "And I'm telling you that you're going to love every second of it."
Kan's mouth went dry. His cock stirred weakly between his legs, still exhausted but already hungry for more. The collar seemed to hum against his throat, attuned to Rei's words.
"I need you again," Kan admitted, his voice barely above a whisper. "I know we just—but I need—"
"I know." Rei's voice was gentle, understanding. "The serum does that. It creates a feedback loop—the more you come, the more you want to come. The more you take, the more you need to take." He scraped the noodles onto two plates, sliding one toward Kan. "Eat first. Then we'll continue."
Kan stared at the food, his stomach growling despite the aching emptiness elsewhere. He forced himself to eat, the flavors exploding on his tongue with heightened intensity. The spices burned pleasantly, grounding him in the mundane reality of chewing and swallowing.
They ate in companionable silence. Rei watched him with those dark, knowing eyes. Kan could feel himself being cataloged, studied, understood.
When the plates were clean, Rei stood and extended his hand. "Come. I want to show you something."
Kan took his hand, letting Rei lead him back toward the bedroom. But instead of stopping at the bed, Rei continued past it, to the large mirror that dominated the far wall. It was full-length, floor-to-ceiling, and the reflection showed both of them standing naked in the lamplight.
"See yourself," Rei said softly. His hand came up to trace the line of Kan's throat, where the collar sat. "Look at what you've become."
Kan's reflection stared back at him. His chest was flushed, his nipples red and swollen from Rei's attention. His belly was still slightly distended, the lingering evidence of everything Rei had poured into him. His eyes were glassy, pupils blown wide. He looked—there was no other word for it—debauched.
But beneath the debauchery, there was something else. A serenity. A peace that Kan had never seen in his own face before.
"I look different," Kan murmured. "I feel different."
"You are different." Rei's hands settled on Kan's hips, turning him to face the mirror. "The collar has changed you. The serum has changed you. And I'm not done changing you yet."
Kan's breath caught as Rei pressed against him from behind, his cock already hardening against the cleft of Kan's ass. The sensation sent sparks through Kan's already-electric nerves.
"Look at your belly," Rei whispered in his ear. "Still swollen from my cum. Can you feel it sloshing around inside you? Can you feel how full you are?"
Yes. God, yes. Kan could feel it with every movement—the weight of Rei's seed pressing against his organs, shifting and sloshing as he breathed. The cleansing serum had absorbed some of it, but not all. There was still a substantial amount left, keeping his belly distended and tender.
"Now look at your nipples." Rei's fingers found them, rolling the swollen buds between thumb and forefinger. Kan gasped, his hips bucking involuntarily. "So red. So puffy. They look like a woman's nipples. Like a mother who's about to nurse."
The comparison sent a jolt through Kan. He'd never thought about his nipples that way before—never imagined them as something that could lactate, could feed. But now, under Rei's touch, the idea took root in his mind.
"You'd like that, wouldn't you?" Rei's voice was dark, probing. "To have milk in these pretty nipples. To have them fill with cream every time you see me."
"I—" Kan's voice broke. "I don't know—"
"You do know." Rei's fingers twisted, pinching hard enough to make Kan cry out. "You know exactly what you want. I can see it in your eyes. I can feel it in the way your heat clenches around nothing, desperate to be filled again."
Kan sobbed, his body betraying him. His hole was clenching rhythmically, slick with the cum still leaking from it, desperately seeking the fullness it had known only hours before.
"Answer me," Rei commanded. "Do you want milk in your tits? Do you want to be so full of my seed that it changes your body?"
"Yes," Kan heard himself say. "Yes, I want that. I want—" He choked on the words, his cheeks burning with shame.
"Want what?" Rei's voice was relentless. "Say it. Say what you want."
"I want to be pregnant," Kan gasped. "I want to be so full of you that my belly swells and my tits fill with milk. I want to look like a bitch in heat, ready to whelp your pups—"
The words spilled out of him. He sobbed as he said them, the confession tearing something open inside him. Rei's hand came up, gripping his jaw, forcing him to look at their reflection in the mirror.
"Look at yourself," Rei said. "See what you are now. A needy little bitch, begging to be stuffed full of seed. Like a female in heat, spreading her legs for any cock that will breed her."
Kan's reflection stared back at him. He looked wild, desperate. His nipples were engorged, red and swollen. His belly was still round. And between his legs, his cock was hard again, leaking precum onto the floor.
"I'm not a man anymore," Kan whispered. "I'm not—I'm something else—"
"No," Rei agreed. "You're not a man. You're something better." He pressed his lips to Kan's ear, his voice dropping to an intimate whisper. "You're mine. A beautiful, desperate little whore who needs a cock in his ass and milk in his tits."
"Yes," Kan sobbed. "Yes, I'm yours. Forever. I'll be anything you want me to be—"
Rei shoved him forward, bending him over the dresser that stood against the wall. Kan's hands slapped against the wood, his reflection directly in front of him. In the mirror, he could see everything—Rei behind him, his cock thick and swollen with the serum. The knot had yet to form, but it would soon. Kan could see the beginning of it.
The first slide of Rei's cock into his ass made Kan scream. He was still so tight, so raw from their earlier session. But the serum was already working, loosening him, opening him, making his body accept the intrusion with an eagerness that shamed and aroused him in equal measure.
"Look at yourself," Rei growled, his hips beginning to move. "Watch your belly bulge as I push inside you. Watch your tits bounce as I fuck you."
Kan watched. He couldn't help it. His eyes were locked on the reflection, seeing the way his distended belly shifted with each thrust, seeing the way his red, swollen nipples jiggled with the force of Rei's movements.
"You look like a bitch in heat," Rei said, his voice thick with lust. "A ravenous little cockslut who can't get enough. Someone who was born to have a knot stretching her open, filling her with seed."
"I am," Kan gasped. "Oh god, I am—"
"Are you?" Rei's hand came around, gripping Kan's throat and pressing against the collar. "Are you my little bitch? My heat-maddened slut?"
"Yes!" Kan screamed. "Yes, I'm your bitch! I'm your slut! I'll be whatever you want me to be, I'll take whatever you give me, just please—please fill me up again—"
The mirror showed him everything. His belly, swollen and obscene. His tits, red and desperate. The mad light in his eyes. And behind him, Rei's massive cock pistoning in and out of his stretched hole, the knot growing larger with every pass.
"Mercy," Kan begged, even as he pushed back against Rei's thrusts. "Please, mercy. I can't—I can't take—"
"You can." Rei's hand tightened on the collar. "You will. You'll take everything I give you, and you'll beg for more."
The knot swelled, catching on Kan's rim. Rei thrust harder, working it deeper. Kan screamed as it forced its way inside, the stretch even more overwhelming than before. His body was being remodeled around this massive intrusion, his hole permanently reshaped to accept the impossible.
"Look at how full you are," Rei breathed. "Look at how your belly swells. How your hole stretches. How you take me. Every inch. Every drop."
Kan couldn't breathe. He was full beyond comprehension. His belly pressed against the dresser, his organs compressed by the sheer volume of Rei's cock and seed. His chest was heaving, his nipples brushing against the wood.
"Do you want milk?" Rei asked, his knot finally seated fully inside Kan. "Do you want these pretty tits to fill with cream?"
"Yes," Kan sobbed. "Yes, I want it. I want to lactate. I want to feed you with my body—"
"Then you'll need to be bred." Rei's hand traced over Kan's swollen belly. "There's a serum that can make you pregnant. More than that—it can make your body produce its own cum. Its own cream. You'll be a fountain of need, begging for release."
"Give it to me," Kan begged. "Please, Rei, I want it. I want to be pregnant. I want my tits to swell with milk. I want to be so full of your seed that I'm always leaking—"
The knot pulsed, and the first flood of Rei's orgasm hit Kan's walls. He cried out, his body arching as the heat filled him. But it was different this time—thicker, almost syrupy. He could feel it clinging to his insides, coating his womb (if he had one—and he would, with the serum) like a viscous cement.
So much. There was so much coming. Kan's belly swelled visibly, the skin stretching to accommodate the endless flood. His nipples tightened, tingling, and he looked down to see tiny pearls of white beading at the tips.
"Milk," Kan gasped. "Rei, I'm—I'm lactating—"
He could see it in the mirror. His nipples, once just erogenous zones, were now leaking a thin, milky fluid. His chest was changing, the pectorals softening and swelling toward something more. Something female.
"They're growing," Rei observed, his voice filled with wonder. "Your body is responding even faster than I expected. The serum was already in your system—this is just accelerating the process."
Kan watched, transfixed, as his chest continued to swell. His nipples darkened, becoming larger and more pronounced, leaking a steady stream of milk. His belly was round and full, heavy with Rei's seed. And his cock was hard again—so hard it ached, even as it leaked a thin, milky fluid of its own.
"I'm not going to last much longer," Kan admitted, the confession falling from his lips automatically. "I'm going to come again—untouched—just from the feel of you inside me—"
"Do it," Rei commanded. "Come for me. Show me how much you need this."
Kan screamed as his orgasm ripped through him. His cock erupted, spraying thick, milky semen across the dresser. His nipples sprayed too, thin jets of breast milk arcing through the air.
Rei continued to thrust, the knot grinding against Kan's prostate. The stimulation was endless, each movement sending fresh waves of pleasure through Kan's devastated body. His belly swelled further, impossibly, until he looked genuinely pregnant.
"Bred," Rei whispered. "Completely bred. Look at your belly—you look ready to give birth to a litter."
"Yes," Kan sobbed. "Yes, I want it. I want to be so full, so pregnant, so completely yours that there's nothing left of me—"
Rei came again, another flood of that thickened seed filling Kan to the brim. Kan's eyes rolled back, his body seizing with simultaneous orgasm after orgasm. He was a mess of milk and seed and sweat, utterly destroyed, completely remade.
Rei finally stilled. The knot pulsed a few more times before beginning to recede. But this time, Rei didn't pull out immediately. Instead, he leaned forward, pressing his lips against Kan's neck, right above the collar.
"Mine," Rei murmured. "My precious little breeder. My perfect filling dummy. My beautiful round-bellied bitch."
Kan couldn't respond. He was drifting somewhere far away, floating on a sea of endorphins. But he felt the collar warmth against his throat, felt the heavy swell of his own belly, felt the milk still leaking from his tender nipples.
"I'll give you everything you want," Rei promised softly. "I'll fill you until you can't be filled anymore. I'll breed you until you're so pregnant with my seed that you can't move. And then I'll start again."
Kan's hand came up, covering Rei's against the collar. It was a gesture of surrender. Of acceptance. Of belonging.
"Promise?" Kan managed, his voice barely a whisper.
"Promise," Rei confirmed.
Kan let himself drift, his body cradled in Rei's arms, his belly heavy and full. The room was a mess of cum and milk and sweat. The mirror showed them both, locked together in an intimate embrace.
But the night wasn't over yet.
There was still so much more to explore.