Threesome With Brother's Wife
Copyright© 2025 by Osa Oladapo
Chapter 6
Incest Sex Story: Chapter 6 - Osa goes to her brothers house for his birthday party, but things go different than expected.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Fa/Fa Reluctant Lesbian BiSexual Heterosexual Fiction Sharing Incest Brother Sister FemaleDom Light Bond Black Male Black Female Black Couple Cream Pie Pregnancy Small Breasts
For a long moment, the only sounds were their ragged breaths and the soft, wet drip of spent fluids onto the mahogany. Adunbi lay, utterly spent, his softening cock still sheathed inside Osa’s clenching heat. She was a trembling, sweaty weight on top of him, her back slick against his chest. Quivina finally pulled back, her face a mask of satisfied, wicked triumph.
“Alright, my gorgeous deviants,” Quivina said, her voice husky but practical. She gave Osa’s flank a gentle slap. “Up. Let’s get cleaned up before we stick to this desk permanently.”
She moved with a fluid grace, sliding off the desk and padding to a small adjoining bathroom. The sound of running water followed. Osa stirred, a soft whimper escaping her as she carefully lifted herself off Adunbi’s deflating length. A thick, creamy rush of semen spilled from her onto his stomach and the wood beneath them, a shocking, tangible proof of what they’d done. The air smelled of sex, salt, and musk.
Adunbi pushed himself up on his elbows, watching as his sister—his sister—swung her long legs over the side of the desk. Her movements were stiff, unsteady. The sight of her, utterly ravaged, her full ass and thighs glistening with their shared mess, sent a dull throb through his exhausted body that had no right being there.
Quivina returned with a bundle of damp, warm washcloths. She handed one to Osa and began to gently wipe Adunbi’s stomach and chest herself, her touch oddly tender amidst the carnage. The cloth was rough against his sensitive skin.
“There,” Quivina murmured, cleaning him with efficient strokes. “Better.”
They dressed in a heavy, shared silence. Fabric rustled. Zippers closed. The simple acts felt surreal, like astronauts donning suits after a walk on a forbidden planet. Osa slipped her crimson dress back over her head, the silk clinging to her damp skin. Quivina stepped into her sleek black dress, becoming the elegant stranger from the party once more. Adunbi pulled on his boxers and pants, the confinement of the fabric feeling alien after such profound, wet freedom.
Quivina led them to a small, plush sitting area in a corner of the large room, away from the evidence-laden desk. She sank into a deep armchair, crossing her legs. Osa perched on the edge of a loveseat, looking fragile. Adunbi remained standing, leaning against the wall, his arms crossed over his still-heaving chest.
The silence stretched, thick with unspoken words.
It was Quivina who broke it, her dark eyes glinting. “So. How do you feel?”
Osa’s gaze flickered from the floor to her brother, then back. A faint, incredulous smile touched her lips. “Hollowed out. Stuffed full. I don’t know.” She shifted, wincing slightly. “Sore. In ... a good way.”
Adunbi grunted in agreement. It was the understatement of a lifetime.
Quivina’s smile widened. “Good. That’s how it should feel.” She leaned forward, her elbows on her knees. “Now for the interesting part. The implications.”
The word hung between them, cold and sharp. Implications.
Osa swallowed. “You mean ... the baby talk. During.”
“I mean the baby reality,” Quivina corrected, her tone losing none of its sensual warmth even as she spoke the heavy truth. “Adunbi came inside you, Osa. Three times. Three massive, deep, fucking loads. We’re not talking about a little spill here. We’re talking about a flood.” Her eyes locked onto Osa’s. “Your cervix was practically bathing in it by the end. You felt that warmth, that weight, pooling inside you, didn’t you? That’s not just cum. That’s potential. That’s life.”
Adunbi felt a chill that had nothing to do with the room’s temperature. He’d been lost in the primal act, in the taboo thrill, in the sheer physicality of it. Quivina’s words dragged the biological stakes into the stark light.
“It was ... a lot,” Osa whispered, her hand drifting unconsciously to her lower abdomen.
“It was a fucking ocean,” Quivina said, a thread of awe in her voice. “Think about it. Right now, inside you, millions of his little swimmers are making their way through all that warm, perfect fluid. Your body is ripe for it. You were ovulating, weren’t you? You had that glow.”
Osa’s eyes widened. A slight, almost imperceptible nod.