The salty, bitter taste went straight to his head, bringing tears to his eyes again. "嗚嗚... Mom, I licked it... please don't punish me anymore..." he whimpered softly, his buttocks burning with pain, each movement feeling like a knife cutting into him.
His mother watched him lick, then suddenly stopped. She turned away from her son's pitiful face and said to Xiao Ya, "Xiao Ya, take him to the bathroom and wash him, clean him up. Don't torment him anymore. Mom knows you're angry, but he's your brother, forgive him this time." There was a hint of concern in her voice; although her anger hadn't completely subsided, maternal love had prevailed. She patted her wide hips, got up, and walked towards the bedroom. The dampness in her underwear made her steps a little awkward, and the unknown addictive pleasure made her heart race—beating her son felt so good? She shook her head, closed the door, leaving the lingering warmth in the living room.
Xiaoya stood there, her eyes narrowed to slits, a cold smile playing on her lips. She was usually bullied terribly by her brother; at school, he would laugh at her in front of the whole class, calling her "flat-assed, like a girl with no anus," making her hate him intensely. Now her mother had spoken, but she didn't care about that. The opportunity for revenge was right in front of her; how could she let it go? "Come on, brother, Mom wants you to take a shower, I'll help you 'clean up'." Her voice was sweet and syrupy, but with an ominous undertone. She grabbed Xiaoming's arm and dragged him towards the bathroom. Xiaoming's legs were so weak he couldn't stand steadily, his penis dangling, half of the cucumber still stuck in his anus. He gasped in pain: "Sister... gently... my butt hurts so much..."
The bathroom door slammed shut with a bang, and Xiaoya locked it from the inside, her eyes fixed on her brother. He bent over, supporting himself against the wall, his trembling hands trying to pull the cucumber out of his anus. When the thick thing was halfway out, it brought out a stream of mucus that dripped onto the floor. Xiaoming cried out in pain, tears streaming down his face: "嗚嗚... this damn thing... it's finally coming out..." He didn't notice that behind him, Xiaoya's breathing was getting heavier. She had forgotten her mother's words; the flames of revenge were burning in her chest. Suddenly, she pounced on him from behind, wrapping her arms around his waist, her slender but strong hands pressing directly on the end of the cucumber, pushing it forcefully inward!
"Ah—! Sister! No! It hurts so much!" Xiaoming screamed, his anus stretched even wider. The cold intrusion made his legs weak, and he almost knelt down. The cucumber was deeply embedded, rubbing against the sensitive intestinal wall. He cried even harder, leaning forward, his hands on the ground, like a dog. Xiaoya pressed against his back, her flat buttocks pressing against his lower back, her voice low and malicious: "Didn't you love to bully me? Laughing at my flat butt at school, laughing at me for having no breasts and no curves? Now it's your turn to taste what it's like to have something shoved up your ass! Don't move, you little bastard, let me give you a 'deep cleaning'!"
Xiao Ming was sweating profusely from the pain. He knew he had bullied his sister before for fun; at school, he liked to see her blushing and angry, that kind of sibling teasing made him feel excited. But now, he regretted it, regretted it so much he felt sick to his stomach. Women in this world were too strong; how could a effeminate man like him withstand this? "Sister... I was wrong! Wuwu... I only bullied you for fun, I did it because I liked you... Now I regret it! Please, pull it out, I swear, I'll never bully you again! I'll be your dog from now on, okay? Sister... please spare me..." He cried out, twisting his butt to try and escape, but Xiaoya's hand was like an iron clamp, squeezing his soft buttock flesh, making him groan.
Xiaoya sneered, turned around to face him, one hand still inside his anus, the other reaching forward and fiercely squeezing his buttocks. The tender white flesh of his buttocks deformed between her fingers, soft like dough. Her usually flat figure made her feel insecure, but now, squeezing her brother's flesh, she felt a surge of power. "Sorry? Brother, you're too late! I've been waiting for this day for a long time!" She said, suddenly leaning forward, her lips pressing against his, her tongue roughly prying open his teeth, wildly kissing him, their tongues entwined. The kiss was loud and messy, saliva dripping, and her hand grabbed the only T-shirt Xiao Ming was wearing—his pants had been completely removed during the punishment, leaving only this tattered cloth—with a "rip," she tore it to shreds, revealing his bare upper body. His chest was fair and tender, his nipples pink, like a little girl's. Xiao Ming instinctively pushed her away, his hands against her shoulders: "Sister... no... we're siblings... this is too messed up!" But his penis betrayed him; the previous stimulation had made his body too sensitive, and that little thing instantly became rock hard, pressing against Xiao Ya's lower abdomen, the glans oozing a clear fluid. His face turned red like a cooked shrimp, and the strength in his hands weakened. Xiao Ya felt the hard object, her eyes flashing with a hungry light, like a little beast about to devour him. Her usually flat buttocks made her feel self-conscious at school, but her vagina was unexpectedly tight, and now her pussy was itching terribly, a mix of revenge and desire. "What are you pushing for? Look how hard your dick is, you perverted brother! You clearly like being played with by your sister!" She sneered, pushing him hard in the back. Xiao Ming hit the bathroom wall with a "bang," the cold, hard tiles sending a shiver down his spine.
Xiao Ya pressed herself against him, her legs squeezing between his, her knees pressing against his hard penis, and she squeezed hard—not with her hands, but with her leg muscles, rubbing up and down the shaft. Xiao Ming's penis was both painful and pleasurable, the glans rubbing against her knees, making a wet sound. "Ah... Sister... lighter... my dick is going to break..." He gasped, his hands flailing, trying to push her away, but Xiao Ya was much stronger than him—in this female-dominated world, the strength she had cultivated since childhood made him like a rag doll. Xiao Ya's mouth pressed down again, this time kissing him more fiercely, her teeth biting his lower lip, her tongue making him breathless: "Mmm... brother's mouth is so sweet... usually you laugh at my flat chest? Now, does my legs squeezing you feel good? You perverted dick, so hard like this, and still pretending to be innocent!"
Xiao Ming resisted fiercely, shaking his head from side to side, pushing her shoulders with his hands, but Xiao Ya's hands had already slid to his chest, pinching his pink nipples, twisting them as if to twist them off. "It hurts! Sister... don't pinch my nipples... I can't stand it..." He cried out, but his body instinctively arched, his penis twitching between her legs. Xiaoya ignored him, lowered her head, and took one of his nipples into her mouth, gently biting it with her teeth and licking and sucking it with her tongue. "Tsk tsk... Brother's nipples are so tender, like a little slut... I'm going to suck you dry!" She sucked hard, stretching and reddening his nipple. Xiaoming gasped in pain, but pleasure also surged through him, and more fluid dripped from the tip of his penis. "Ugh... Sister... stop... it's too hard... my dick is going to cum..." He resisted and squirmed, but Xiaoya was stronger, holding his waist with one hand and continuing to pinch and twist the other nipple, sucking and biting until the nipple was swollen like a cherry. Only then did she lift her head, her lips glistening with saliva: "Hmph, brother's nipples are so sensitive, I'm not done playing yet!"
Her pussy was getting itchier and itchier, her flat butt's vulva was soaking wet, her panties sticking to her flesh. Xiaoya panted, grabbed Xiaoming's hair, and pulled him down to his knees: "Kneel down, you little slut! My pussy is itching, lick it with your slutty tongue!" She roughly pulled down her shorts, revealing her flat butt—it was indeed flat, like a firm board, without a single curve, but her vulva was pink and tight, her labia swollen and already oozing with cum. Xiaoming knelt on the ground, his face close to the warm, wet pussy, smelling a sweet, musky scent: "Sister... don't do this... Mom will be angry..." But Xiaoya didn't care, she pressed his head forward, thrusting her pussy directly onto his mouth: "Lick! Lick my pussy hard, or I'll shove the cucumber even deeper so you can't pull it out!"
Xiaoming's tongue was forced out, curling around the slippery labia, licking the clitoris, tasting the salty cum. "Mmm... yes... you little slut, put your tongue inside... fuck my pussy hole!" Xiaoya moaned in pleasure, thrusting her flat butt forward, her vulva rubbing against his face. Xiaoming licked diligently, his tongue swirling inside the hole, but suddenly, a hot stream gushed out—Xiaoya had started to pee! Yellow urine streamed directly into his mouth, the salty, bitter taste making him nauseous. "Ugh... Sister... stop peeing... I can't drink anymore..." He tried to turn his head and resist, pushing against her flat buttocks with his hands, but Xiaoya was strong, holding the back of his head firmly in place: "Drink! Drink it all, brother! This is my revenge, you've bullied me for so long, now drink my urine to atone! Gulp, gulp... You dirty mouth, open wider!"
The urine flowed continuously, splashing all over his face. Xiao Ming was forced to swallow large gulps, coughing, tears mixing with the urine. His penis, however, grew even harder; his sensitive body was aroused by the humiliation, his glans dripping. "Cough, cough... Sister... enough... I've drunk it... Ugh... your urine is so salty..." He cried out, but his tongue still had to continue licking. After she finished urinating, her vulva was even wetter, and he licked and sucked at her labia. Xiaoya climaxed, her flat buttocks trembling, her vaginal fluids spraying into his mouth: "Ah... Brother... you licked me so well... you little piss-pot brother... you'll drink my urine every day from now on!"
Xiao Ming knelt there, his mouth full of the smell of urine, the cucumber still stuck in his anus, his penis aching from its hardness. He regretted it terribly; his past "fun" of bullying his sister had now become a nightmare, but in Xiaoya's eyes, there was still an unfulfilled lust. She pulled him up and pushed him to the edge of the bathtub: "It's not over yet, brother. I'm going to use your penis to put out the fire!" She straddled him, her flat buttocks pressing against his thighs, her vulva aligned with his penis, and she thrust down completely. "Ah... so tight... my pussy is going to crush you!" Xiao Ming screamed: "Sister... stop... it's too deep..." But she began to twist and move, her flat buttocks thrusting up and down, the sound of slapping and his cries echoing in the bathroom. Xiaoya rode him vigorously, her hands squeezing his nipples: "Scream, you little pervert! Does my flat ass feel good fucking you? Will you still dare to laugh at me after this?" Xiao Ming cried and shook his head: "No more... Sister... fuck me to death... I was wrong..." His penis moved in and out of her tight vagina, the friction driving him crazy. Xiaoya's vaginal walls gripped him tightly, squeezing his glans with every thrust. Her slender figure made her movements agile, and she rode him quickly: "Mmm... Brother's dick is so hard... Sister is going to drain you dry!" She lowered her head and bit his neck, leaving teeth marks. Her pussy contracted, and another orgasm came, squeezing Xiao Ming until he couldn't help but ejaculate, his hot semen spraying inside her.
But Xiaoya didn't stop. She pulled out his penis, urine and semen mixing as they flowed down: "Turn around, brother, I'll help you with the cucumber... but in a different way." She pushed him to lie face down on the edge of the bathtub, his buttocks raised, and she held the cucumber, slowly thrusting it in and out: "Relax, you little asshole... I'm fucking you, just like you used to laugh at me!" Xiao Ming cried out: "Ah... Sister... gently... my asshole is going to split..." The cucumber went in and out, bringing out mucus, and his penis hardened again, incredibly sensitive. While she was fucking him, she used her hand to stroke his penis: "Cum, brother! Cum for me to see, your punishment!"
The sounds of water, crying, and bodies colliding mixed together in the bathroom. Xiaoya's revenge intensified, her flat buttocks pressing against his legs, enjoying the pleasure of dominance. Xiao Ming completely broke down, ejaculating again and again, collapsing in the bathtub, urine and semen all over the floor. "Sister... I surrender... I'll never bully you again..." He sobbed, and Xiaoya was finally satisfied. She pulled out the cucumber and threw it aside: "Hmph, good that you know. Get up, wash yourself clean, don't let Mom find out." She turned on the shower, the water washing over them, but in her eyes, that hunger hadn't completely extinguished.