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"Ishika, are you sure this is safe?" A naked white tiger pleads with a green cobra naga standing next to him. The naga, Ishika, tightens the leather belts on the tiger. The tiger squirms and attempts to pull his arm free, but to no avail.

"Of course, Aren. Science is completely safe." Ishika smiles and sticks his tongue out. Aren relaxes on the cold steel table he's stuck to. Ishika slithers behind a wall of bulletproof glass, straps on an x-ray vest and his signature dark green goggles on top of his yellow eyes.

Aren's eyes widen and he struggles against the restraints. "You bastard! You said it was safe!"

"Yeah, for me!" Ishika flips a switch and a giant laser gun retracts from the ceiling. It points right at Aren's body. "Now, don't squirm so much or it may miss." Ishika grabs a joystick and controls the gun around. He presses a button and aims it right at Aren's stomach. Shaking, the tiger moves to the right, the laser barely missing him. "Now I told you not to move!"

"You also said it's an experiment!" Aren relaxes his body, his stomach moving back to the middle. "You have no idea what's gonna happen!"

"That's why we experiment!" Ishika aims for Aren's bare crotch and presses the button. A direct hit! "For science!" Aren shifts his eyes around. His eyelids feel heavy, then light, then heavy again. He's having a hard time staying awake. Ishika comes out from behind the bulletproof glass wall and adjusts his goggles to the top of his head. He throws the x-ray vest off his body and to the ground "Aren? Are you okay?"

"You horne bastarrr, whas goin on?" Aren shuts his eyes and relaxes on the steel table. Ishika releases his latches and looks over the tiger's body. Nothing seems to be out of the ordinary.

"Hmm, could it have been a miscalculation?" Ishika huffs and flips over the unconscious tiger. The naga lifts himself on the table and rubs Aren's back. His burned wing scars are still there, his fur long gone. His scaly paws drift to his striped butt, giving each cheek a squeeze.

Aren's eyes shoot open and he twists his body around. He grabs Ishika's hands and pins him on the cold table. "How many times do I have to tell you no touching my butt?" Aren snarls slightly, but something feels off.

Ishika notices it too. The tiger is bare naked. Shouldn't there be a fuzzy sheath and balls touching Ishika's long body? They both turn their gaze from each other and to Aren's crotch. In the absence of a sheath and balls, a pair of lips are in place. "Well, seems like the experiment is a success."

"Success?! Are you a mad man?! I want my cock and balls back!" Aren grabs onto Ishika's hood and glares into his eyes.

"N-now, Aren, calm down. I'm sure there's a...way to..." Ishika sticks his tongue out, smelling the air around him. "Where is that pleasant smell coming from?" Ishika wrestles out of Aren's grip and makes his way to Aren's new part. He sticks his tongue out, briefly touching the new lips. "It's there!"

"Ishika, what are you talk-" Aren is cut off short as Ishika sticks his thin tongue inside. The tiger's new sensations shake his knees. He sits on his butt and spreads his legs, letting Ishika eat him out. "Whatever you're doing, it feels good."

Ishika opens his mouth and engulfs Aren's crotch, sticking his tongue in as far as it'll go. The tiger above him moans. He grips Ishika's hood and keeps his snout in place. Ishika lifts the tiger up and places the striped legs around his head. Aren holds himself in place, using the strength in his legs to hold him steady. Ishika wasn't making this easy for the tiger as he frenched with Aren's new equipment. Ishika pulls away from Aren and looks at the lust-filled tiger's face. The naga releases Aren's legs from around his head and guides the tiger down his body. He licks the tiger's face.

The naga wraps his body around Aren, squeezing him gently. Aren opens his eyes and stares at Ishika. "What's happening?" Aren observes his surroundings, only able to see the top of his chest and necklace. Ishika had his entire body surrounded. The naga looks over the tiger, licking his lips as if he found the perfect meal.

"The real experiment begins," Ishika smirks, rubbing his two penises against Aren's two lower holes. Aren shuts his eyes and presses himself against Ishika, taking the tips inside. Ishika tightens his coils around Aren, giving another inch of the ten-inch cocks to the tiger. Aren feels himself dripping from the front, unsure if it's from himself or Ishika's precum.

As the fat shafts penetrate him, Aren shoots his eyes open. "Ishika, you're too big!" Aren struggles in Ishika's coils. His new bits aren't used to thick naga meat. The tiger tenses up, clenching on Ishika and making passage impossible. The naga holds Aren's head and brings the tiger into a kiss. Aren relaxes in Ishika's grasp. The naga slips his tongue inside and traces over Aren's fatter tongue and cheeks. Aren's holes open up, letting Ishika sink another two inches into the tiger.

Ishika pulls away from Aren and licks the tiger's cheeks. "Feel better?" Aren could only nod in response. Ishika's grin turns devilish as he thrusts three inches into the relaxed tiger. Aren's eyes shoot open, but he meows and gives out short breaths. "Good, because this is only half of me." Ishika slowly sinks further into Aren's vagina and ass.

Aren's breathing increases, feeling full from both of Ishika's dicks. He throws his head forward, pressing himself against Ishika's body and moans into it. He nibbles and licks Ishika's scales, tasting the faint green tea with lemon the naga's body is adorned in. Ishika thrusts again, burying both of his cocks inside Aren. The tiger rubs his crotch and butt against the slit that houses the naga's cocks. He grunts, feeling so full. Ishika pulls out just the base of his shafts and thrusts them back in, grinding back in response and shooting precum inside. "Do you want me to cum inside you? Give us some beautiful children?"

Aren's lifts his head and shoots daggers into Ishika's eyes. "Fuck thaaaaaaa~ Oh fuck!" Ishika grinds himself against Aren's crotch again. "Fuck it, just fucking cum inside me God damn!"

Ishika tightens his grip on Aren. The tiger thought his eyes would pop out of his skull! He struggles against Ishika's coils again, trying to get comfy as the naga fucked him. Ishika refuses to loosen his grip even as he pulls out of Aren. The naga keeps pulling his shafts out until just the tips remained inside. Aren whimpers, feeling so empty. Ishika takes this as a sign and thrusts all ten inches back into the deprived tiger.

Aren gasps and throws his head back, resting it against Ishika. He moans as the naga relentlessly inserts and removes his penises. Aren needs a release, but he's unsure how that's going to happen now. He was so used to his old equipment that he's not sure what's going to happen next. He didn't need an answer right away as Ishika pushes his lengths inside one more time and screams, cumming deep inside both of Aren's entrances.

Aren lets out a roar, feeling his juices mix in with Ishika's as they seep out from between his legs. Aren collapses and relaxes against Ishika as the naga fires off more shots of cum. Aren feels each member pulse individually, the one in his butt shooting about seven loads while the one in his pussy shot out six. Ishika relaxes and loosens his grip on Aren. Panting, Aren barely manages to speak. "N-now that you're done, how do we get my cock and balls back?"

"Aww, but I like your new equipment better." Ishika's shoulders and head droop saddened that Aren wants to go back to normal. Ishika lifts his head up and sees Aren glaring at him. "W-well, I don't really know how."

"You went through with this without knowing how to turn me back to normal?!" Aren frees his arms and pushes against Ishika's body, trying to pull free.

"Science is full of mysteries, Aren! I can't, aaaahhh~, know all the answers." Ishika moans as his dicks leave Aren's tight, warm embrace. Aren starts climbing out, using the individual coils as stairs. Aren missteps and his right striped foot paw slides right into Ishika's right dick! Aren tries to pull out, but Ishika's cock is hungry. The naga grins and devises a plan. "Hear me out, what if, just what if, you can get your cock and balls back by being eaten by my dick?"

Aren's eyes widen and he tries freeing his foot by pushing against Ishika's slick dick with his free one. "You're crazy! It'll never-" He was cut off short with Ishika plugging his mouth with a potion. Aren drinks the contents and spits the flask out of his mouth, it shatters on the ground.

"Just trust me, okay? I'm a scientist after all!" Ishika moans as Aren's maneuver fails and his other foot falls prey to the ravenous dick.

"A scientist, sure, but you're so hungry and horny all the fucking time!" Aren looks down and hears the ten-inch member swallow half of his legs, his feet bulging out the shaft. "Don't do this, come on!"

"Science, Aren! Do it for science!" Aren wasn't going to get through to the naga; his eyes are full of interest and awe. It would be nice if this wasn't weird science. Ishika flexes his cock and claims Aren's knees, dragging the tiger's feet to the base of his shaft.

Aren glares at Ishika. "If I don't come back-" Ishika duct tapes Aren's mouth shut. He muffles in protest, slamming against Ishika's body. The naga wraps himself tightly around Aren again, squeezing him.

"Yeah, yeah, I know. Our friends won't take too kindly if you just up and disappear, but let me enjoy this...for science!" Ishika pumps his fist in the air and moans as he takes in Aren's crotch and butt. Aren's eyes relax as Ishika's pre touches his used privates, moaning into the duct tape. He was too lost in his lust to feel Ishika's cock crawl up his belly, shooting precum on his chest.

Ishika grinds his secondary member against his engorged one, pressing it against the bulge Aren makes as he journeys into the naga's slit and his hidden sack. Aren's feet poke into the container of Ishika's cum, his feet dip into the warm semen. The tiger wiggles his toes as he's dragged deeper, his chest claimed by one of the naga's members. Aren stares into Ishika as the naga releases the tiger from his coils. Ishika admires his work, checking out the bulging tiger. The naga flexes both of his cocks and drags Aren's shoulders inside, leaving just the tiger's head left.

Ishika leans forward and presses his lips against Aren's. "Thanks for doing this, for science and all." Ishika pets Aren's head. The white tiger nuzzles into Ishika's hand, but that's when the naga shoves Aren fully inside. His cock gulps down the rest of the tiger, massaging him as he journeys deeper into Ishika's dick.

Aren's body is coated in cum and precum as he's sent down the tight tube. His legs and crotch are able to get some wiggle room as they're deposited into Ishika's balls. Ishika presses his face against his Aren's, licking the bulge and tasting himself. He follows Aren's head until it too disappears into his slit. Ishika leans back, admiring his hard shafts as they throb and leak pre. Once again, he's raring to go!

Aren spills into Ishika's sack, getting coated and filled with cum on his used crotch. He sinks his head below the cum and blows bubbles. He opens up and swallows some down, finding it tastes as sweet as honey. Aren raises his head and takes a deep breath, his lungs filling up with the musky air. "That sneaky naga must have experimented on his cum." Aren leans against the walls and rubs against them. "As long as he can return my equipment, I'll be...fine." The white tiger closes his eyes as the area around him shakes. "Must be horny again." Aren purrs against the walls as he drifts to sleep, the cum starting to claim him for the naga's body.

Outside, Ishika's using both of his hands to stimulate himself, but it's not enough. "Why can't I fucking cum!" The naga rests his arms against his belly. His shafts throb as they drool precum. Ishika tastes the air; something is different. He leans to his cocks and tastes the precum. "This tastes like...Aren!" He runs his tongue along the precum trail and to the slit of one of his penises. "Ohhhhhh~ His juices must have mixed in with mine! It tastes so divine!" Ishika opens his big mouth and takes both members inside. It's a bit of work as there's not enough room to fit both in without one slipping out, but he eventually gets a rhythm going. He wraps his mouth around the cock that consumed Aren and extends his tongue to taste the other.

The naga sucks on himself as he dives deeper, taking half of his member already. He's sensitive after his romp with Aren and eating him soon after. Against his second cock, he flicks his tongue; the smell gets stronger as he descends closer to his slit. He must have the source of this delicious smell! Opening his mouth wider, Ishika takes another three inches into his mouth, letting his second member brush against his cobra hood and leak precum down his back.

Ishika opens his mouth wide and presses down, letting half of his cock bulge out his throat as he takes the last two inches of his cock. He unwraps his tongue from his second shaft and shoots it directly into his slit, licking over the base inside. He rolls his eyes to the back of his head as he swallows his member and the pre accompanied by it. The naga rubs his hood against the middle of his second shaft. Ishika moans and closes his eyes shut. His cocks throb and pulse as they shoot the naga's load into and on him.

Ishika greedily swallows every rope shot into his long throat. Half of the amount Aren made went straight into Ishika's belly while the other coats his back and hood, leaving the naga sticky from the thirteen total loads. Ishika pulls off himself, licking the cum from the first dick as it leaves his mouth. The second member grinds against his hood, leaving a cum trail as Ishika pulls back. He eagerly sticks the second member in his mouth and licks the head, cleaning it of any excess cum and swallowing it down. He gives each of his members a kiss as they slowly slither back into Ishika's slit.

The naga reaches down to his belly, the cum bloating it out to the size of a soccer ball. "Damn, Aren. Didn't think you'd give me that much. I wonder if it's because of the experiment. That pheromone, what could have caused it? Hmm." Ishika slithers to his desk next to the table that held Aren down. He jots down notes as to what happened from Aren getting a vagina to the pleasant smell that came from it and how the smell transferred to Ishika after.

"I need more testing, but how?" Ishika taps his chin as he looks around the room. He stares at the laser and smirks. If it were possible, a light bulb would have appeared above his head. "I know just the thing." Ishika slithers behind the glass wall and flips on a switch. As the laser warms up, he stands in front of it with his arms wide open.

**********************************************

Aren opens his eyes and stares at the white ceiling he saw before the experiment began. "Oh no, was that all a dream? Do I have to experience that again?" Aren tugs his arms and slaps his chest. "Ouch! Well, good to know I'm not restrained." Aren reaches down to his privates and feels the familiar sheath and balls he's known his whole life. He sighs in relief. "Thank God. I missed you." The tiger casually strokes his sheath and rolls his balls in his paw.

The tiger sits upright and looks around. He doesn't see Ishika anywhere. "Where could that horny bastard have gone?"

"Right behind you." Aren jumps from the table and onto the floor. He turns around and sees the naga.

"Don't fucking scare me you psycho!" Aren wags his finger at the naga. "You know I don't like being scared."

Ishika waves Aren off. "Yeah, yeah. Anyway, I need more help! Look!" Ishika places his hands on his hips and thrusts forward. The same pair of lips that adorned Aren's crotch is now housed on Ishika's.

"You didn't." Aren's mouth hangs open as he stares at Ishika's crotch.

"Oh, but I did." The naga reaches down and spreads his vagina apart. "Smell anything good?"

Aren leans down and sniffs around Ishika's crotch. The tiger shrugs and looks up. "No, I don't smell anything."

"What? But how is that possible?" Ishika grabs Aren by the shoulders, hoists him up, and shakes him. "I'm able to smell it and it smells heavenly!"

The naga shakes Aren repeatedly. The tiger is barely able to speak coherently. "Maaybee beeecause I'm gaaaay?"

Ishika stops shaking Aren and let's go of him. The tiger falls on his butt and rubs it. "Hmm, I need further testing. If you can't help me with this..." Ishika slithers out of the room.

Aren watches Ishika leave and stands up. "There are only two other people who could help him and I sure hope he's not going towards him."