Ren stayed buried inside Ayako for a few more slow breaths. Then he leaned close to her ear, voice low and calm.
"Clench for me, Mom. Keep it all inside."
Ayako nodded quickly, still trembling.
She tightened her walls around him as he slowly pulled out.
A single thick drop of cum escaped and slid down her inner thigh before she squeezed harder, trapping the rest deep in her womb.
Ren kissed her once, slow and deliberate, then fixed her skirt and stepped back.
He left the kitchen without another word.
Kushida had already slipped away the moment she saw him finish.
The hallway was empty when Ren walked through it. His mind was already turning over the next problem.
'How do I break my sister properly this time…' he thought.
'She's jealous and wet. She's desperate for approval. All I need is the right time.'
He reached his room and pushed the door open.
To his surprise, Kushida was already inside.
She sat on the edge of his bed, back straight, eyes fixed on him with a mixture of disgust and something darker.
Obsessive. Hungry. Her hands were clenched in her lap.
The door clicked shut behind him.
"I saw everything," she said, voice low and shaking with barely controlled fury.
"You and Mom. In the kitchen. You think you can just fuck her whenever you want and then blackmail me into your submissive slave? I'm done being the only one who suffers, Ren. From now on you do what I say… or Dad finds out exactly what kind of son he's raising."
She lifted her chin, trying to look confident.
Trying to seize control the same way he had always done to her.
Ren stared at her for a long second.
Then he smirked.
The expression was slow, amused, and completely unafraid.
He closed the distance between them with unhurried steps until he stood right in front of her.
Without a word he reached out, gripped the collar of the thin t-shirt she wore around the house, and tore it open in one sharp motion.
Riiip.
The fabric split down the middle.
Her bare breasts sprang free, soft and full, nipples already tight from the tension coiling inside her.
Kushida squealed, high and sharp, like a cornered rat.
Her arms flew up instinctively to cover herself, eyes wide with shock and something else that looked a lot like fear mixed with heat.
Ren's hand slid into her hair. He forced her head down until her face was level with the hard outline straining against his pants.
His voice dropped into that same calm, absolute tone that had always made her body betray her.
"Open my pants. Lick it."
The order landed like a physical weight.
Kushida's breath hitched.
For a second her mind screamed to refuse, to fight, to follow through on the threat she had just made.
But her hands moved on their own.
Fingers trembled as they found the button and zipper, pulling them open.
The heavy length of his cock sprang free, still faintly glistening from their mother's cunt, the thick scent of sex rising between them.
Her pussy clenched hard at the sound of his voice alone.
'Why… why am I doing this…I should be the one controlling him not the opposite' she thought, even as she leaned forward.
Her tongue slipped out and dragged slowly along the underside of his shaft, tasting the mixed fluids of mother and son.
A soft, involuntary shiver ran through her.
The dominating tone had already sunk past her resistance, and her body answered before her pride could catch up.
It was her first time licking a dick.
She had only ever watched people do this on the internet, and now the real thing felt heavier, hotter, and far more intimidating than any video.
She tried to copy what she remembered, licking from the base upward in slow, uncertain strokes.
Ren's hand tightened in her hair.
"Take it in your mouth."
Her eyes widened. She looked at the thick, veined length only inches from her lips.
It was massive. Bigger than anything she had ever seen on a screen. The idea of fitting it inside her mouth seemed impossible.
Still, she opened her lips and leaned forward.
The broad head pushed past her teeth and rested heavily on her tongue. Her jaw stretched.
Saliva welled up almost immediately.
She could only manage a few inches before the thick girth forced her to stop, eyes watering at the sudden fullness, she thought, even as her lips sealed around him and her tongue pressed tentatively against the underside.
Her teeth grazed him as Ren pulled her head back at once. The wet cock left her mouth with a soft pop.
"If your teeth touch it again," he said, voice flat and cold, "you don't get to have it anymore."
Kushida nodded weakly, eyes glassy.
He pushed her head forward again.
This time she was careful.
Her lips wrapped tightly around the shaft while her tongue moved in slow, deliberate strokes along the underside, trying not to let her teeth make contact.
"Use your tongue more," Ren said.
"It seems Mom's mouth is better than yours."
The comparison hit her like a slap. Inferiority and jealousy flared hot in her chest.
She began to work harder, tongue swirling and pressing with more urgency, mouth sliding up and down as far as she could manage. Her hands rose to cradle his balls, massaging them gently while she sucked.
"Mmm… nn…"
Soft, wet sounds filled the room as she grew more frantic, determined to prove she could do better. Minutes passed.
Her jaw ached.
Saliva dripped down her chin. Still she kept going, tongue and lips moving furiously, hands never stopping their careful attention to his balls.
Suddenly Ren's grip tightened.
He pushed her head farther down, forcing more than half of his thick cock into her mouth. The head pressed against the back of her throat.
"Nngh—!"
He came hard.
Thick pulses of cum flooded her mouth in heavy spurts.
Kushida had no choice but to swallow. Gulp after gulp of hot, salty fluid slid down her throat while he held her there, making sure she took every drop.
When he finally released her she pulled back, gasping, lips shiny and swollen.
A thin string of saliva and cum connected her lower lip to the tip of his cock for a moment before it broke.
'It's a little salty and masculine… but also a little sweet,' she thought, the realization startling her even as her pussy throbbed helplessly between her legs.
Ren looked down at her, still smirking, and waited to see what she would do next.
"Lick it clean," he said, voice quiet but absolute. "Every drop."
Kushida's throat worked.
The old defiance tried to surface one last time, but it crumbled under that tone.
She leaned in again.
Her tongue dragged slowly over the head, then down the shaft, careful and thorough.
She cleaned the remaining cum from the underside, from the ridge, from the base where it had mixed with the faint taste of their mother.
Schlick.
Soft wet sounds rose between them. Her own breathing grew uneven.
Between her legs the ache had only gotten worse. Her panties were soaked through.
When she finished, Ren's hand slid under her chin and tilted her face up.
He studied her for a moment, then hooked his hands under her arms and pulled her to her feet in one smooth motion.
He walked her backward until the backs of her knees hit the edge of the bed.
A gentle push sent her down onto the mattress.
She landed on her elbows, staring up at him. Ren reached for the waistband of her shorts, hooked his fingers, and dragged them down her legs along with the wet panties.
The fabric peeled away, leaving her bare from the waist down.
He tossed the clothes aside, then finished tearing the ruined shirt the rest of the way off her shoulders so nothing remained between them.
Kushida's thighs pressed together instinctively. Ren simply pushed them apart and settled between them.
He lowered his head and dragged his tongue in one long, slow stroke from the bottom of her slit all the way up over her clit.
"Ah—!"
He did it again. And again. Long, deliberate licks that parted her folds and tasted how wet she already was.
Kushida's hands fisted in the sheets.
Soft, broken moans spilled out of her as his tongue worked her open, circling her clit, dipping lower, then returning to the sensitive peak with steady pressure.
Her hips started to roll against his mouth without permission.
The pleasure built fast, tightening low in her belly until her breath came in short, desperate gasps.
Just as her thighs began to tremble and her voice climbed higher, Ren pulled away.
Kushida's eyes flew open. A frustrated, needy sound escaped her throat.
He rose over her, wiping his mouth with the back of his hand, and looked down at the flushed, dripping pussy he had left aching on the edge.
His cock rested heavy against her inner thigh, still hard, still thick.
"You won't cum today by my tongue, sister," he said calmly. "I will fuck you today until you can't cum anymore."
The words landed like a brand. Kushida's eyes went wide.
Terror and heat warred across her face at the same time.
She stared at the heavy length of him, at how massive it looked against her smaller body, at the way the head was already nudging against her soaked entrance.
Her tight hole clenched visibly at the sight.
"N-no… no, wait… Ren, it's too big, I've never…"
He ignored the protest.
One hand pinned her hip to the mattress.
The other wrapped around his cock and rubbed the thick head up and down through her folds, coating himself in her wetness until both of them shone.
The friction alone made her whimper. He lined himself up carefully, the broad head pressing against her entrance, and then drove forward in one firm, unbroken thrust.
Her hymen tore.
"Ahhhh...."
Kushida's scream tore through the room, raw, sharp, pure pain.
Her back arched hard off the bed. Tears sprang instantly to her eyes.
Her nails dug into his shoulders as the thick cock forced its way through the tight virgin resistance and buried itself deep inside her in a single stroke.
Hot blood mixed with her arousal around the base of him.
Ren stayed buried deep, feeling the raw, vice-tight clamp of Kushida's virgin pussy trying to squeeze the life out of his cock.
Every pulse of her walls gripped him like she wanted to force him out and keep him in at the same time.
Her scream still hung in the air. Tears streaked down her temples.
He did not pull back. He only adjusted his weight, braced one forearm beside her head, and started to move.
The first withdrawal dragged thick and sticky, her blood and slick coating him. When he pushed back in, the head forced her open again.
Schlck.
Kushida's breath stuttered.
"Nnh… it hurts… Ren… it's too deep…"
Her voice was small, broken, already thicker than before.
He ignored the words and lowered his mouth to her chest.
His lips closed around one tight nipple and sucked hard, tongue flicking, then teeth grazing just enough to make her jolt.
He switched to the other, biting down lightly while his hips kept that same unhurried rhythm. The wet sound of her stretched pussy taking him grew louder with every stroke.
Plap...Plap...Plap.
Minutes stretched. Kushida's cries softened.
The sharp edge of pain dulled under the steady friction.
Her walls still clamped him like a fist, but the grip started to change, growing slicker, hotter, less purely defensive. Her hips twitched once, then again, meeting a thrust without meaning to.
"Ah… ah… something's… changing…it feels good..."
Ren dragged his tongue up the side of her neck, licked the shell of her ear, then bit the lobe just hard enough to make her gasp.
His free hand found her other breast, fingers twisting the nipple while his mouth returned to the first one, sucking and biting in time with the slow roll of his hips.
"Feel that?" he murmured against her skin.
"Your little pussy is starting to like it. Squeezing me like it wants more."
Kushida's eyes were glassy.
A soft, helpless moan slipped out of her every time the thick head dragged across the new sensitive places inside her.
The pain had melted into a deep, heavy fullness that made her toes curl. She started rocking up to meet him, small, uncertain motions that still made the wet sounds wetter.
Schlick...Plap...Schlick.
Ren kept the pace steady for a long while, letting her body learn him.
He licked sweat from the hollow of her throat, bit the soft skin just below her ear, then returned to her nipples, sucking one while he pinched and rolled the other.
Kushida's hands slid from his shoulders to the back of his neck, then down his back, holding on as the pleasure built higher.
"Ren… brother… it's… it's starting to feel good…"
Her voice cracked on the last word. He smiled against her breast and finally gave her more.
The thrusts grew heavier, longer, the full length of him sliding almost all the way out before driving back in until his hips met hers with a solid slap.
The bed creaked under them. Kushida's moans climbed, high and needy, every other one ending in a soft little moan.
He braced both hands beside her head and fucked her properly in missionary, deep and relentless.
Her legs wrapped around his waist without being told. Her heels dug into the backs of his thighs, pulling him in harder.
The wet sound of skin on skin filled the room, mixed with the obscene slick sounds of her used pussy taking every inch.
Ren lowered his mouth to her ear again, voice low and rough.
"Tell me, sister. Where do you want the cum?"
Kushida's mind was already half-gone. Her answer came out in a dazed, breathless rush, the words tumbling over each other.
"I want it in my pussy… load it in your sister's pussy, brother… please… fill me…"
The filthy request made his cock throb hard inside her.
He growled against her neck and gave her exactly what she asked for.
The thrusts turned heavy and deep, each one slamming home with enough force to make her breasts bounce and her voice break into short, sharp cries.
Kushida clung to him, moaning openly now, the last traces of resistance gone.
"Yes… yes… harder… use your sister's pussy…"
Ren's rhythm stuttered. He drove in one final time, buried to the root, and came with a low, rough grunt.
Thick pulses of cum flooded her in heavy spurts, painting her insides, flooding the tight channel that still clenched around him like it never wanted to let go.
Kushida's back arched hard.
"Aaaahnnn—!"
A long, broken scream of pure pleasure tore out of her as the heat of his release triggered her own climax.
Her walls spasmed wildly, milking every drop, pulling him deeper while she came around the cock that had just broken her open.
He stayed locked inside her, grinding through the last pulses, making sure every bit of it stayed packed deep in his twin's freshly claimed pussy.
Kushida trembled under him, eyes half-lidded, lips parted, soft little aftershocks still fluttering around his length.
The room smelled of sex and sweat and the sharp copper of first blood.
Ren finally eased back just enough to look down at where they were still joined, at the messy mix of cum and her arousal leaking around the base of him.
He brushed a strand of hair from her flushed face and waited for her breathing to steady, already deciding how much more he was going to take from her before the day was over.