Shuten-Douji x Bicorn (FGO)

[writer unknown, will edit if found]

Shuten aligned the flared tip to kiss with her own cockslit. Bicorn grunted at the touch of Shuten's hand. Gently but firmly Shuten started to push the cocks together, while slowly applying force from her hips. Shuten clenched as her wet opening started to give in and spread open, allowing the equine cock enter and fill the head part of her own. Well lubricated by the precum of both parties, Shuten could feel the urethral walls smoothly yet tightly caress the horsecock, making her shudder with pleasure and anticipation. The oni smiled and adjusted her posture, spreading both legs while leaning on her other arm, ready for the thrusting.

Carefully she kept the unison of large phalluses steady as she started slowly pushing deeper with her hips. Shuten could not help but hold her breath as the thickness filled and slid along her own urethra, clearly visible from the bottom side. Little by little it passed through the middle and as Shuten continued to raise her hips further, it finally stopped at almost the very base Shuten's cock. The bicorn took an empty step, signaling the mystical beast's arousal and uneasiness at the pleasurable sensation. Shuten also finally remembered to breathe, excited by the perverse sexual act and eager to press on. Now Shuten started to pull hips back down, her urethral walls sucking with wet vacuum at the horsecock snugly inside it. Then a thrust, and a pull, and a thrust. Sloppy noises repeated as the underside of Shuten's cock bulged and shrunk back and forth in a deep fellatio-like fashion. Each movement numbed both sides with pure pleasure, drops of precum flying around barely escaping the tight insertion. Even with her tremendous oni strength Shuten's body trembled in excitement. She felt her erection pulsate, while the pressure of the heartbeat ringed in her temples. Her ballsack tightened around her cantaloupe sized nuts in anticipation as she kept thrusting faster and faster and faster still, speeding up to frantic - almost violent - pistoning.

As the full speed thrusting continued, Shuten could feel herself nearing her peak, but she knew the horse-like beast would be the quicker shot of the two, despite hardly showing visible signs other than what seemed like mere impatience. However, that quickly changed as the Bicorn's loins quivered and the beast reeled back its with a distressed neigh. Suddenly the bicorn slammed Shuten's buttocks against the ground and broke up to pistoning on its own terms to reach the climax. A dozen or two thrusts rocked Shuten as she held on to the ground. Then on the final push, Shuten could fill her urethra bulge even further as the horsecock tip forced itself into a full flare, as if to further make the already tight seal now absolute and ensure the equine penis is tightly locked in place. Shuten could see the bestial scrotum clamp up tight to push its virile load as it looped forward towards Shuten's penis, millions of equine sperm flooding through ready to impregnate the partner many times over.

Shuten could gradually feel her own urethra tighten slightly more as the cum rushed along the length of the equine cock inside her own. Then a warm wet feeling splashed at her base, spreading further down inside her groin where it met against her prostate, almost instantly filling it up and expanding it, which made Shuten orgasm at that moment. Shuten clenched tight ready to cum and her ejaculatory duct relaxed open to make way. However in the same instant this allowed a new escape route for the influx of thick bestial cum which had just started to build up against the prostate. Slick wads of richest beast semen eagerly entered the ductus deferens on both sides, giving Shuten the unique sensation of a strong reverse ejaculation. Halfway the narrow passages her own cum had just started to rise up, but the direction was immediately overturned back down by a much bigger wave. As the thicker surge forced its way down, the difference was felt by Shuten when it reached the bottom and started push up again inside her epididymides. Finally foreign species cum flooded deeper inside the main testicles and invaded the every chamber of her septa, immediately inflating them to their full size. But the Bicorn wasn't done cumming yet and it kept forcing in more globlets of cum, the pressure making Shuten's septa push against the testicular walls, eventually forcing to stretch in size. Shuten's balls started to swell, her throbbing reproductive organs swirling with millions of virile horse sperm impatiently looking for something to impregnate.

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Pub: 21 Aug 2021 01:13 UTC
Edit: 21 Aug 2021 22:14 UTC
Views: 1039