Quivina’s words hung in the humid air, a challenge and a promise. Her fingers, still tracing the vein on his shaft buried inside her sister-in-law, were a brand. Osa shuddered beneath him, her body clenching reflexively around his semi-hard cock at the sheer depravity of the suggestion.

“Again?” Adunbi’s voice was a ragged scrape. His muscles screamed with exhaustion, but a deeper, more primal part of him stirred. The feel of Osa’s impossibly slick heat, the possessive grip of her well-fucked pussy, the visual of Quivina’s slickness shining on Osa’s chin—it was fuel on a dying fire.

“Yes, again, ” Quivina purred, her dominance absolute. She shifted her weight, a sleek panther moving its prey. “But not like this. I want to see everything. Osa, my gorgeous girl, up. On your knees. On top of him.”

She helped guide Osa’s trembling form. Adunbi, with a groan that was equal parts effort and anticipation, slowly withdrew from Osa’s clasping warmth. A thick, obscene gush of his spend followed his exit, painting her inner thighs and the desk with a glistening, white trail. The sight made his spent cock twitch with renewed interest.

Quivina guided Osa to straddle Adunbi’s hips as he lay back against the cool wood. Osa moved with a dazed, sensual grace, her body a symphony of ripe curves outlined in the low light. She positioned herself above him, her knees framing his waist, her back to his chest. Reverse cowgirl. The view was breathtaking. The elegant line of her spine dipped into the deep, shadowed valley of her lower back, which then curved out into the magnificent, full swell of her ass. Her cheeks were round and heavy, still flushed from his earlier attentions. Between them, he had an unimpeded view of her glistening, swollen sex, her puffy labia parted and dripping his cum, and just below, the tight, clenching furl of her asshole.

“Now, ” Quivina instructed, her voice husky with command. “Take him inside you, Osa. Do it yourself. Show me how much you want your brother’s thick fucking cock.”

Osa’s hands reached behind her, her fingers wrapping around the base of his shaft. Adunbi’s breath caught. Her touch was electric. She guided the broad, slippery head of his cock to her entrance. It was already thickening, lengthening under her ministrations, the purpled head beading with fresh moisture.

She began the same gentle, torturous ritual he had used on her earlier. She rubbed the fat crown up and down her soaked slit, smearing their mixed fluids, painting her sensitive lips. Each pass drew a soft, shuddering sigh from her. She pressed the tip against her opening, applying a gentle, rhythmic pressure. In. Out. Just the very tip. Each time she sank him in that first glorious inch, her head would fall back, her dark hair brushing his stomach. Each time she withdrew, her stretched entrance would try to cling to him, making a soft, wet sound of protest.

“Quivina...” Osa moaned, her rhythm faltering.

“I’m here, baby, ” Quivina murmured, moving closer. She knelt beside them, her full breasts swaying. She leaned down, her mouth finding one of Osa’s erect, dark nipples. She didn’t just suckle; she drew the entire areola into her mouth, her tongue flicking mercilessly at the hardened peak.

The sensation was a bolt of lightning straight to Osa’s core. Her body bucked, and with a guttural cry, she sank down, impaling herself on Adunbi’s length in one smooth, breathtaking slide.

Adunbi saw stars. The tight, hot clasp of her was absolute, her inner walls stretching to mold themselves perfectly to his resurrected girth. He was fully sheathed, buried to the root inside his sister, her ass pressed firmly against his hips.

“Fuck, Osa, ” he grunted, his hands flying to her hips, his fingers digging into the soft flesh of her waist.

Quivina switched to her other nipple, lavishing it with the same hungry attention. “Now ride him, ” she commanded, her words muffled against Osa’s breast. “Ride that huge dick, you filthy girl. Make him fuck you from underneath.”

Osa began to move. The position was exquisite torture. She rose up, his slick shaft sliding almost all the way out, her inner muscles fluttering in a desperate attempt to keep him inside. Then she sank back down, a slow, grinding descent that took him deeper than he thought possible. From this angle, every stroke rubbed directly against her most sensitive spots. Adunbi could only watch, mesmerized, as her beautiful ass slapped against his stomach, her glistening pussy devouring his cock over and over.

Quivina’s hands joined the fray, one pinching and rolling the nipple her mouth had just abandoned, the other snaking down Osa’s trembling stomach to find her throbbing clit.

“You feel that, Adunbi?” Quivina’s voice was a dark, thrilling whisper. “You feel how her cunt is gripping you? It’s still dripping with your last load and it’s still this tight. It’s like she’s trying to milk every last fucking drop from your balls. She wants it all. She wants you to breed her so deep there’s no way it won’t take.”

Her filthy words, combined with the visual of Osa’s body bouncing on his, the feel of her silken heat, the sound of their sweat-slicked skin meeting—it was a feedback loop of pure, unadulterated lust. Adunbi’s hips began to piston upward to meet Osa’s downward strokes, his thrusts becoming harder, faster, more desperate.

“I’m close, ” Osa cried out, her movements becoming erratic, her inner muscles beginning to spasm around him. “So close!”

“Then come, ” Quivina growled, rubbing hard, fast circles on Osa’s clit. “Squeeze his fucking cock. Milk his seed out. Make him give you that baby.”

The command shattered her. Osa’s body went rigid. A raw, shattered scream was torn from her lungs as her orgasm ravaged her. Her pussy clamped down on Adunbi’s thrusting cock in a series of violent, rhythmic pulses, a velvet fist milking him, demanding his very essence.

It was the most intense climax of his life. He drove up into her one last, brutal time, his own release tearing from him with the force of a volcano. “Osa!” His roar was pure, animal possession.

Inside her, the world dissolved into a white-hot inferno. His cock, buried to the hilt, swelled and jerked as the first scalding jet erupted from him. It wasn't a trickle; it was a geyser, a torrent of thick, potent seed that fired directly into her waiting cervix, already softened and welcoming from her climax. Spurt. Spurt. Spurt. The pulses were relentless, a seemingly endless flood that filled the space his cock had claimed, hotter and thicker than before. She could feel the liquid weight of it, a profound internal gushing that overflowed her womb’s entrance, pooling in a deep, fertile lake. Her own contracting muscles seemed to actively pull it deeper, drawing the essence of her brother into the most sacred part of her.

Quivina watched, her own breath catching, as Osa’s stomach seemed to quiver with the internal deluge. She leaned in, her lips brushing Osa’s ear.