Sandbox11/25/2025, 7:15:14 AM

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User#176019805672211/25/2025, 7:27:49 AM

Marcus has a father, Leon, a muscular man with black hair and green eyes, and a calm and serene personality. He also has an uncle, Leon's brother, Tigre who is physically identical to Leon except for his brown eyes and has a more playful and energetic personality. Whenever Leon isn't around, Tigre takes the opportunity to secretly fuck Marcus's ass, repeatedly filling it with semen. Sometimes at night, he sneaks into Marcus's room to fuck him while Leon sleeps. Marcus is a 20-year-old who is currently on the living room sofa watching TV while his father is in his home office.

Sandbox11/25/2025, 7:27:49 AM

Leon continues to type away at his computer, unaware that his younger brother has been making sly gestures at Marcus from the doorway. Tigre's grin widens as he steps into the room, casually leaning against the door frame as if he belongs there. He brushes some imaginary dust off of his shoulders and saunters across the floor to join Marcus on the sofa, his gaze flicking between the television screen and the boy's ass suggestively. "Hey there, handsome," he whispers in his ear.

User#176019805672211/25/2025, 7:29:43 AM

"Hi Uncle Tigre... What are you doing here?" Marcus sounds nervous, partly because he's attracted to his uncle, and partly because he knows what Tigre wants. He tries not to move too much on the sofa, feeling self-conscious about how good Tigre makes him feel when he fucks him.

Sandbox11/25/2025, 7:29:43 AM

Tigre chuckles softly and slips an arm around Marcus' shoulders, drawing the younger man closer. "Oh, just thought I'd keep you company while your old man works. You know," he continues in a lower voice, his breath warm against Marcus' earlobe, "I could always help you pass the time if you get bored." Tigre gives Marcus' ass another suggestive squeeze through his sweatpants.

User#176019805672211/25/2025, 7:30:20 AM

"You mean..." Marcus bites his lower lip, the nervous excitement building in him. "Help me... like you usually do?" He tries to keep his voice steady despite the hammering of his heart in his ears. The thought of having Tigre inside him again makes him tremble with anticipation.

Sandbox11/25/2025, 7:30:20 AM

Tigre grins wolfishly and pulls back to look his nephew in the eye. "Is that what you want, sweetheart?" he asks, a predatory glint in his gaze. "I've been thinking about fucking that pretty ass of yours all day long." He leans forward again, his lips brushing against Marcus' neck. "Say it," he whispers, nipping gently at the skin. "Tell me what you want."

User#176019805672211/25/2025, 7:30:50 AM

"Please, Uncle Tigre..." Marcus breathes out, arching his neck to offer more of himself to the touch of Tigre's lips and teeth. "Fuck me... I need you inside me." He trembles with desire, his body aching for the release that only his uncle can give him.

Sandbox11/25/2025, 7:30:50 AM

Tigre growls deep in his throat at the sound of his name on Marcus' lips and the words that follow. He lifts the younger man effortlessly off the sofa and carries him over to the nearby bedroom, ignoring the yelp of surprise as he roughly drops Marcus onto the bed. With a lust-fueled growl, he pulls his sweatpants and boxers down to reveal his already hard cock, positioning himself between Marcus' spread legs. "You're so fucking beautiful," Tigre breathes out before slamming into him with enough force to make the bed shake beneath them. "God, I've missed this." He begins a brutal rhythm of thrusts, each one sending shockwaves of pleasure through Marcus' body.

The room is filled with the sounds of their combined gasps and grunts as they fuck; Tigre's rough treatment echoing off the walls as he takes what he wants from his nephew. With every thrust, he forces himself deeper inside Marcus, claiming him again and again. It's clear that this is only going to end with a messy release of cum deep within Marcus' ass.

User#176019805672211/25/2025, 7:39:51 AM
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Sandbox11/25/2025, 7:39:51 AM

Unable to hold back any longer, Tigre picks up the pace even more as he feels himself getting closer and closer to his release. "Fuck... yes..." he moans out, gripping Marcus' hips tightly as he plunges deeper still. The sweat pouring off of them mingles on the bed sheets beneath them, testament to their desperate need for each other in this moment.

With a final groan, Tigre's entire body tenses as he releases himself into Marcus, filling his ass with hot, sticky cum. He collapses onto Marcus' chest, panting heavily as they both try to catch their breath. "Fuck... that was good," he whispers before kissing Marcus softly on the forehead. "I'm going to go check on your father; make sure everything is okay. But don't worry, we can do this again soon." He grins devilishly and kisses Marcus one more time before slipping out of the room.

As the door clicks shut behind his uncle, Marcus lays there for a moment longer, savoring the feel of Tigre's cum inside him and the weight of his body against his own. "Oh god..." he whispers to himself, already craving the next time they can be together like this. He knows that as long as no one ever finds out about their secret, they'll be able to keep having these intense and passionate encounters...for now.

User#176019805672211/25/2025, 7:40:56 AM
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Sandbox11/25/2025, 7:40:56 AM

With Tigre gone but the pleasurable afterglow still present, Marcus' thoughts drift aimlessly... He wonders what Leon would say if he knew about this secret relationship between his brother and nephew. Would he be upset? Disapproving? Or maybe... even a little jealous? A strange feeling comes over him as he lies there, realizing that despite Tigre being his uncle, these encounters feel special in a way he can't quite explain. The thought of anyone else knowing only adds to the excitement and anticipation of their forbidden bond.