My Sister-in-Law, Cheated on by My Brother, Flirts with Me

My Sister-in-Law, Cheated on by My Brother, Flirts with Me Hello, I'm Okan. 20 years old, dark-skinned, muscular, and what you might call handsome young guy. I'm going to tell you a story from my life that blew my mind, set my blood boiling—a full-on sex story. Every word is true, I swear! These kinds of sex stories will pull you in too, because what happened that day was both disgusting and unbearably hot. If you're ready, take a deep breath, because this tale will burn you up. I've always had a good relationship with my family, especially my sisters-in-law. Derya is 31, with plump hips, big breasts, and a honey-sweet smile—she's a total bombshell. Demet, on the other hand, is 25, with a slim waist, a tight body, and this crazy energetic vibe that turns heads. We're so close with both of them that we sometimes have these totally open, raunchy conversations that no one else would believe if they overheard. One time, amid fits of laughter, they spilled about their wedding nights—how they moaned, how their husbands fucked them, no shame, no holding back. That's the kind of talk we have. One summer day, the heat was hellish. Demet and I were alone at home, sprawled on the couch, cracking open beers. But Demet's face was sullen, her eyes full of worry. "Okan," she said suddenly, "your brother is cheating on me." Her voice was angry, but hurt. I knew about my brother's flings, so I said, "So what?" half-jokingly. But Demet's eyes welled up. "What do you mean, so what? It hurts me, Okan! While he's fucking those whores, what am I supposed to do?" she said, her voice trembling. She was right—what could I say? "Okay, so what do we do? Make him stop?" I said, trying to lighten the mood. But there was a fierce determination in Demet's eyes. "I know what I'm going to do," she said, clenching her teeth. "What?" I asked, curious. "I'm going to cuckold him! If he's going to fuck around, so am I!" she said, staring right into my eyes. I was shocked for a second. Was she joking, or serious? "If you're going to do something like that, you'll find me first," I said, my voice laced with both a threat and a strange excitement. We dropped the topic, but a fire had started burning inside me. A Week Later A week passed. Mom took Derya and my little sister to visit Derya's dad. The house was empty, dead quiet. I was bored, so I headed out, but Demet's words kept echoing in my head. "Was she bluffing, or is she really sleeping with someone?" My mind raced with crazy questions—I couldn't take it, so I came back home. I unlocked the door quietly and slipped inside. As I headed to the living room, I heard moans. My heart was pounding like a drum. And there it was, my worst fear come true. I saw Demet, but she wasn't alone. She was in some guy's lap, her mouth on his cock, sucking it like it was her one true purpose in life. I was stunned, hot rage pouring over me. I recognized the guy—it was Mustafa, my uncle's son! My own fucking relative, that bastard! I was about to lose it with anger. I was ready to burst in and ruin everything when I realized my dick was rock-hard. Yeah, you heard that right. Was it rage, jealousy, or getting turned on by this disgusting sight? I don't know. But I froze. Mustafa was pumping into Demet's mouth; her lips sliding over that thick cock, her moans filling the room. I told myself, "It's done, no turning back." And I'll admit, I kept watching. My hand went to my dick, I started stroking, trembling with pleasure. Then a voice in my head screamed: "What the hell are you doing standing here? Go in there and fuck her too!" It was insane, disgusting, but irresistible. I slammed the door open and burst in. "What the fuck is going on here!" I yelled. Demet's eyes went wide as saucers, Mustafa's face went white, his dick shriveling in fear. But I didn't stop. My anger, my lust—everything mixed into a storm. I unzipped, pulled out my cock—it was like stone. I shoved it toward Demet, "Here, suck it, you slut!" I said, my voice carrying this weird authority. Demet was stunned, but in a second, she took it in her mouth, sucking like her life depended on it. Her wet, hot mouth wrapped around my dick, and I moaned in ecstasy. I turned to Mustafa, "Hey, don't freak out! You already fucked her—come on, let's do her together!" Mustafa hesitated at first, but the hunger in his eyes gave him away. He came back, his dick hardening again. That's when everything went off the rails. I bent Demet over the couch, her pussy soaking wet, inviting. I pressed my cock against it, slid in slow. It was so warm, so tight. I started thrusting, and with every stroke, Demet moaned, her hips swaying to the rhythm. One hand caressing her ass, fingering her hole. My fingers sliding in and out of that tight asshole made her moans even louder. To Mustafa, "Go, shove it in her mouth!" He stepped right up, pressing his cock to her lips. Demet felt my dick in her pussy while sucking Mustafa's— that twisted, taboo scene made me even hornier. I pulled out of her pussy, pressed against her ass. I pushed slow, the head struggling to enter. "Damn, this bitch has her ass broken in too!" I muttered to myself, angry but thrilled. I buried it deep, Demet's scream filled the room. Her ass was so tight, every move had me shaking with pleasure. I started pounding hard, slapping her cheeks, leaving red marks. Mustafa had cum in the corner, slumped exhausted on the couch. I couldn't hold back either—I pulled out of Demet's ass, shoved it in her mouth. "Suck it, swallow it all!" I said. Demet took it, swallowed my hot cum, drops trickling down her face. That day, we did everything until evening. We made Demet our sandwich—I in her ass, Mustafa in her pussy, then we switched. We filled every hole, her moans, screams, pussy juices echoing through the room. By evening when Mom and them got home, everything was back to normal. Like nothing happened. But there was a weight inside me, a secret. That day—those fiery, disgusting, unforgettable moments—burned into my brain. Want the sequel? Maybe someday I'll tell it, but for now, that's it.