Work Text:
Kirei awakes to the sound of the door opening. The intruder stops instantly, hoping the priest recognizes him and doesn't throw one of his swords. Kotomine blinks, trying to adjust his eyes to the darkness, so that he can observe the infant figure beside the threshold.
—Gilgamesh? —the priest rebukes. A chuckle escapes the boy's mouth. It is not uncommon for the king of heroes to spend long periods of time away from the church. Far from being a loyal servant like a dog, Kirei might compare him to a cat. Coming in and out of the house as he pleased, breaking things just for the pleasure of it, and coming to him when he needed shelter or food.
—Move it Kirei, I've had a long journey and I want to rest. —The boy takes off his shoes and walks over to the bed, slipping under the covers.
—You have a room of your own, go sleep there. —Kirei claims.
—I've always slept with you. —Gilgamesh whispers as he climbs up to the pillows—. What's the matter, Kirei, are you upset because I look like a child? Don't worry, I won't wet the bed… unless that's what you want.
The priest's huge hand grabs Gilgamesh's head and pushes him across the mattress. Kirei turns around, facing the window and turning his back to the king. He can feel the boy move across the mattress, pulling his infant body closer to the man's.
—Gilgamesh. —This time Kirei reprimands him.
—I've been gone too long. —The blond speaks—. You didn't miss me, Kirei?
—No. I didn't even notice you were gone.
—Liar. —Gilgamesh lunges at Kotomine, mounting the priest's chest and resting his hands on his shoulders. It would be hard for an outsider to read a Stoic fellow like Kirei, but not for Gilgamesh. He notices the lie in his master's refusal.
—Go to sleep, Gilgamesh. —Kirei raises his hands, grabbing the boy's waist to pull him off him.
—I want to fuck. —The king confesses. For Kirei it's not unusual for that to be the reason for his return, this time at least he had the decency to wait a bit to ask for it. In previous situations, he would have just jumped into his lap, without asking permission and knowing that Kotomine would not refuse.
—When your potion wears off, we can do it. —Kirei replies.
—I want to do it now.
—Didn't you say your journey was long?
—It was a lie. It is your duty to please my desires, and I want to fuck. —Gilgamesh insists.
—You should have thought better of it when you timed the potion.
—I didn't miscalculate, this appearance is on purpose.
—What kind of pervert do you think I am? —Kirei pushes the boy, pulling him down from his chest.
—Come on, Kirei, aren't priests supposed to like children?
—What kind of statement is that?
—Father Kotomine, I've been a very bad boy. —Gilgamesh adjusts himself on the priest's lap, playing with his hands, feigning nervousness and using an unpleasantly childish tone of voice—. I've had obscene thoughts...
Kirei's hand covers the boy's mouth to prevent him from speaking further. As he tries to push him off his lap, Gilgamesh's fingers clutch at Kotomine's shirt, tugging at the garment so that the adult can't move him. The blond opens his mouth, running his wet little tongue across the black-haired man's calloused palm; causing the priest to remove his hand.
—Listen to me Kirei. —The king's reddish eyes flash with a palpable malice in the gloom—. The problem with being with children is supposed to be that they are imbeciles and cannot give consent. I'm a demigod a thousand of years old, the only thing childish about me is this appearance.
—It's not the only thing, Gilgamesh. It is everything. If you need sexual release, you can go masturbate in another room.
—You can't say something like that to me, Kirei. Just do your part of the deal, let's explore something new. The potion's effect only lasts for a couple of days, if it's not something that gives us pleasure, we'll just never do it again.
The boy leans in, bringing his lips close to Kirei's ear. His small tongue slides across the priest's skin, as he slides down to his neck. The king of heroes' tiny hands clutches at Kotomine's shirt, pressing against his chest and moving his hips to urge him on.
Kirei grips the boy's waist, helping him set a rhythm that might be pleasurable. Gilgamesh brings his lips close to the priest's, pressing his small mouth to the adult's. Opening his cavity and pushing his tiny tongue between Kotomine's teeth. The boy moans against the adult's mouth, choking back his sobs.
Kirei's hands run up the incredibly narrow waist, he can almost wrap his fingers around it. He touches the soft skin that is not covered by the top he wears. As he lets his appendages climb up his shoulders to undo the white trench coat. The priest can now size up the proportions of the younger boy. His small, slender shoulders, with bones that feel fragile to the touch.
The priest's calloused hands slip under the small shirt. Lifting the blue cloth and pressing the barely formed muscles in his boyish chest. The young Gilgamesh shudders, trembles at the cold touch of the heartless man on his flesh.
—Kirei, stop playing. —The young man reprimands. Kirei slides off his shirt, tousling the blond hair and uncovering the infant's chest. The younger boy's small hands move to his own belt to undo the knot of his trousers. The camouflage fabric of Gil's trousers is rough to the touch, Kirei feels it as he helps the boy undo his garment. Gilgamesh stands up, then lets the trousers fall to the bed.
—You're not wearing underwear. —Kirei stares at the small, hard member in front of his eyes. The splendid, pure nakedness of the young Gilgamesh in front of his face. The younger boy slides his hands over his stomach, leaning towards Kirei to kiss him again. Dropping his naked body onto the priest's lap. His hands now on the adult's broad shoulders slide down to the nape of his neck, allowing his fingers to tug at the long dark strands.
The older man's rough hands grasp Gilgamesh's buttocks, pulling the tender flesh apart. The king of heroes is then pushed down onto the bed's messy sheets. A low moan of pain escapes the boy's lips as Kirei's body presses him against the soft surface.
Gilgamesh spreads his slender thighs, inviting the priest closer. Gil lifts his small feet to rest on Kirei's shoulders. The older man approaches, as he spreads his lips and takes hold of the hard little cock. The boy lifts his hips, pushing his member into Kotomine's cavity, as he takes the black hair between his hands.
The priest sucks the boy, bringing his fingers up to the little boy's small hole. Saliva trickles down Gilgamesh's flesh, soaking his opening to ease his appendages into the king of heroes. The blond curves his back as he sobs, pounding the priest's back with his feet. Kirei pulls the flesh apart and pushes down to the knuckles, sliding them out again.
Gilgamesh tugs at the sheets of the bed he shares with the priest. A third finger joins the appendages that open the King's entrails, pulling his hole apart and letting Kirei peer into his throbbing bowels. The godman stands up, pulling the blond's small cock out of his mouth.
The priest opens one of the nightstand drawers, groping for some essential oil, the jar of Vaseline or at best the bottle of lubricant. Gilgamesh despairs as he hears the rattling of objects inside the wooden drawer. Just as he is ready to protest, the movement of Kirei's hand accelerates, striking his delicate core with force.
The boy startles, his eyes snapping open as he notices the sharp whip inside. The priest's fingers slide out of his hole, drenching his hand with the oil he manages to get from the drawer. It's not the most appropriate substance, but Gilgamesh has been travelling for six months, and it's all he can get his hands on. Kirei hurries up, pushing his appendages back inside the king of heroes, to avoid the blond's anger.
Gilgamesh feels the warmth of the viscous liquid on his rims, wetting his bottom and draining the excess down to the sheet. The boy can see Kirei unzip his pyjama trousers and pull them down his hips. His hard cock revolts against his abdomen, reaching below his navel.
The younger boy lets out a sob as the priest's large hands grasp his slender body, forcing him to roll over and pinning his boyish face to the soft surface of the mattress. Gilgamesh gasps as he feels the throbbing flesh against his hole, sensing the slippery wetness on Kirei's glans, who begins to force his length inside the king of heroes.
—Kirei. —The boy squeals, his reddish eyes opening wide. Feeling his flesh open and his hole stretch, accommodating the priest's member. Kotomine slides his hand down the hero king's stomach, feeling the small lump forming on his belly. Gilgamesh's now infantile body is barely large enough to contain him.
The priest gasps, holding one of Gil's cheeks with his free hand, squeezing his tender flesh. Kirei watches him, taking sadistic delight in the way the hero's slender body stretches to contain him. The blond trembles and jerks, giving short spasms as he tries to adjust to his size. Tears trickle from the corners of his eyes, running down his cheeks. His chest heaves, catching his breath, as Kirei begins to sway.
Squeezing both buttocks in his hands, leaving red marks on the white dermis. Kotomine pulls completely out of the hero's loins, only to push himself back inside. The boy moans, clutching at the pillow. Noticing all too clearly the deep thrusts in his belly, vibrating through his body, like an electric shock coursing from his hip to the back of his neck.
—Kirei, Kirei, Kirei. —The hero sobs, trying to lift his face, so he can look at the priest. The older man leans down, resting his hands on the bed, wrapping them around the younger man's body. Gilgamesh bites his lips, stifling the miserable sobs that come from his mouth.
—Isn't this what you wanted? —the older man rebukes. Still whipping the younger man's body, lifting his knees off the bed with each blow.
—My stomach. —Gilgamesh speaks as his voice trembles, breaks as his words turn to sobs. It is different from how they usually do it, perhaps because his body is small now, because the priest's cock goes so deep it is almost painful.
—I warned you to wait. —Kirei wraps his hand around the boy's neck, lifting his slender frame. Forcing him onto his palms, his back curves, allowing Kotomine's cock to strike that nerve centre in his body. Gil cries out, as the obscene slapping of their clashing skins is joined by the sound of the boy's voice.
Gilgamesh gropes for the back of the bed, in a vain attempt to find support. Clinging to the wood, feeling the rough lashing in his gut, as his insides open. The creaking of his bones as they are forced to contain the priest's member, and his reddened flesh burns from the blows.
Kirei plunges his nose into the bush of blond hair, squeezing mercilessly at the boy's neck. Gilgamesh's body contracts, trying to breathe, rhythmically squeezing Kotomine in his hole. The boy's hands reach for the muscular arms of the mage enforcer, digging his nails into his skin. Pulling at the flesh to beg him to open his grip.
The blond gasps, opens his mouth, and his eyes leak tears. Gasping sounds escape his lips as he feels the air being drained from his lungs. He shuffles his feet, kicking, pushing himself to his knees to get to his feet. But the size difference makes it impossible for his strength to overcome Kotomine. The priest's hot breath hits his forehead, as a flash of pleasure invades his dead eyes. The crooked smile is visible on the older man's lips as a crushing sense of terror overcomes the hero. That childish body is incredibly fragile, compared to his usual magnificent form.
—Ki, Ki, Kir, Kir, Ki. —Gilgamesh notices the priest's burning blood trickling down his small hands, the skin he has torn on his fingers, yet Kirei does not let go. He continues to pound his ass without the slightest mercy, as he did in all their previous encounters, squeezing his throat without giving him a chance to breathe.
Saliva runs down the corners of Gil's mouth, his face pales as the dark mist invades his gaze. The adult-turned-child's small hands stop struggling, falling limp against his thin body. Kirei opens his grip, letting Gilgamesh fall face first onto the bed. Taking in long gulps of air, filling his lungs with oxygen as he touches his neck.
—Your lungs are small. —Kirei comments, without the slightest emotion in his tone—. It's been the usual time and look at you, you're almost dead.
—You, you, by the way, Kirei. —Gilgamesh pauses between each word. Staring at the priest with his red orbs laden with contempt. Kotomine grabs him under the shoulders, sliding his cock out of the younger boy's hole. He turns the boy's tiny body around, so he can look directly into his face.
The ecclesiastic thrusts again, pounding his core with the same momentum as before. Kirei adjusts himself between the younger boy's legs, grabbing his small hips and pulling his slender body. Gilgamesh bounces up, raises his tiny hands and clings to Kotomine's back. He screams with his little mouth open and throws his head back.
From this angle, Kirei can see the bulge in young Gilgamesh's belly. The way his skin twitches, his stomach swells as it enters his loins and shrinks as he pulls out completely. The hero's small cock drips pre-semen against his belly, demonstrating the younger man's delight at the outrage.
—Kirei. —Gilgamesh shudders, his body jerking, trembling as his nails dig into the priest's flesh. His eyelashes flutter, shivering as he lets a few thick strands of come spread across his stomach.
His peerlessly tight interior compresses further, leaving Kirei trapped in his bowels. Being sucked into the boy's intestines, as if wishing to swallow him. Kotomine revels in the pressure of the infant's body, embracing the young Gil.
As soon as the young boy's tense body falls limp on the bed, Kirei continues his work. Pounding his stretched hole, sinking without resistance into that immature body to take it. The splashing of his thrusts increases, joining the hero's slack moans. Kirei's large hands grasp the blond's waist, pulling his small body to impale him. He stays impaled in his loins, his cock deep in the younger boy's bowels. The boy's body jerks, trying to escape, slamming his small fists into the priest's chest.
—Stop it, you're hurting me. Stop it, Kirei. —The whimpering on the part of the king of heroes stops as he feels the thick hot liquid cramming his insides, seeping into his nooks and crannies and spreading through his intestines. As it fills his belly, violent spurts of sperm spill out of his rims.
Kirei slides out, letting the rest of the semen that the young body has been unable to contain gush out of his hole. Dripping down his buttocks and dropping onto the bed. The boy is still trembling, closing his eyes and breathing hard.
—That will be enough for today. —Kirei says. A normal encounter would last a couple of hours, but in the current state of Gilgamesh's body he would not tolerate the next session. The priest adjusts his trousers and flops down on the bed, hoping to return to the sleep that was interrupted.
—I'll get a woman's potion. —Gilgamesh says before giving in to exhaustion.