What is that? That.. monstrosity inside Thanos' throne room?

The Titan is distracted from his meditation by an alien creature, taking the form of black goo. The room is silent and dark except for the dimly lit candles, and the slithering sound of the creature moving towards Thanos. "What are you?" Thanos questions, receiving no answer. His heart begins to race. Thanos was vulnerable.

He had no Infinity Gauntlet on his hand to protect himself. His armour as well was gone. He had nothing but a helmet, shining with the moon reflecting off it it, causing the creature to drool. To the creature, Thanos was its holy grail, his life's meaning.

Its host.

This particular symbiote has been desperately searching for Thanos for years and years, fantasizing about bonding with the Titan, bringing him into complete submission, breeding him before he finally gets to devour the Mad Titan whole.

Thanos was Aphrodite to this symbiote. Since the day the symbiote laid its white eyes on Thanos, it could only imagine claiming him. Thanos is majestic, almighty, and drop dead gorgeous. The symbiote can't possibly live much longer without Thanos' body under its control. Luckily for it, Thanos' Black Order gave a perfect chance. The symbiote smuggled itself inside Ebony Maw's pocket, and it leapt out and into hiding when Ebony found Thanos in his royal chambers. The symbiote's mating instincts have now kicked in, and it's approaching the love of its life with all intentions to devour him.

Thanos' beautiful eyes scan the symbiote, and he moves further away from it, pushing his back against the throne. Thanos' senses are giving him multiple sensations.

Fear of the highest level, curiosity, adrenaline, and of course.. sexual arousal.

"What do you want from me?" Thanos asks. The symbiote, once it reaches the throne close enough to kneel, does exactly that. It manifests into its humanoid physical shape, eyes and mouth revealed, and it is able to speak. "I... am.. Venom." It speaks.

"I am death... pleasure... dominance... adoration... fallacy... illusion.. seduction.. love.."

Venom whispers, slithering behind Thanos' throne. The Titan can feel a sweat building up from the symbiote's closeness, its body heat is very strong. His heart is racing, and he is trembling. "I have come.. to take you as my host.. my love.." Venom hisses, his very long tongue flicking out to lap at Thanos' cheek. He jumps from the sudden contact, breath hitching in his throat as Venom's burning hot tongue licks the sweat from his cheek, leaving a trail of pitch Black saliva behind as it moves to his neck..

Thanos gasps, turning his head, hoping to signal the creature to stop. "I-" Venom refuses to let Thanos speak. He, the symbiote, moves his alien hand to Thanos' mouth and shoves a finger inside. "You and I.. have many rituals to tend to.. so beautiful."

Thanos suddenly bites down on the finger, causing Venom to screech and yank it out. "It won't be that easy, monster." Thanos growls. He underestimated the symbiote.

It retaliates by transferring all of its Force to its arms, and it lashes forward at the sitting Titan before he even knew what hit him. The impact of Thanos' skull and the back of the throne is nearly fatal. Purple blood pools up at the injury on the back of Thanos' head, and he sinks down nearly lifeless. "This will heal, my beloved.." Venom hisses, using his tentacles to wrap around Thanos' body. The symbiote tightens its tentacles around Thanos' wrists and ankles, torso, and and gently around his neck, leaving smaller ones with the leash-like appendage for easy access to his mouth.

Venom slithers the ground, carrying Thanos above the ground, melting from his physical form. Thanos' blood looks more than delicious, making the symbiote thirsty.

The last thing he wanted to do was hurt his beloved anymore than he already had to, but the scent of Thanos' blood was intoxicating...

When Thanos woke, all he could feel was searing pain in the back of his head. His only energy lied within his throat, where a dreadful scream broke free, startling Venom who was seated beside Thanos, removing clothes from his body. Venom's desires did not lay in screaming, so he shoved a fat tentacle inside Thanos' mouth to gag him and silence him. "That's better... my love, you're in pain. So much pain. I'm sorry... I had to." The symbiote moves its mouth to the injury, where it begins lapping up the blood, causing Thanos to thrash about in his bonds and attempt to keep screaming. Venom forced the tentacle down Thanos' throat, weary of Thanos' strength, which was becoming very difficult to restrain. He would need to sedate him quickly.

"Ssshh.. quiet. You're not going anywhere, Thanos. You're mine now, love. I've caught you fairly, and this is where you calm yourself." Venom released a black drug inside Thanos' body, which took effect immediately, draining him of his strength and common sense. All of the fight was released from Thanos', and instead he let out a moan instead of another scream. Suddenly, he didn't care what the symbiote was doing to him. He felt a desperate need to be filled to the brim. "That's it, love... good. Shh... no more fighting. Relax. Feel the pleasure.. a sense of peace.. calmness.. trust." Said Venom, wrapping two more tentacles around each of Thanos' wrists as he used bigger ones to spread Thanos' legs wide, revealing his secret gender fluidity. Thanos, despite looking entirely male, is all masculine and muscle minus a penis. In its place was the female counterpart, dripping wet and sensitive. Venom grinned at this surprise.

Thanos' eyes fluttered open at times, then back closed, then halfway. He was breathing heavily, feeling a bit squeamish from the tentacle wiggling around in his throat. Venom in all his life has never been more aroused. Thanos, his for the taking. Finally, no more fighting brutally against other symbiotes for Thanos' claim.

Venom marks Thanos as his with a gentle but firm bite on his neck, which causes a Thanos to squeal a bit in pain. Venom heals Thanos with gentle licking, but the mating mark has to be visible for the sake of dominance. "All done, love.. so sorry about the Heat." Venom says as he takes fresh tentacles, sopping wet with physical lubricant, perfect for symbiote bonding with a host. Venom begins to rub the tentacles over Thanos' chest abdomen, covering his purple skin in a thick coating of black gooey lubricant, which will make it easier for Venom to swallow the Titan. Thanos squirms and moans to the touch, grinning, feeling totally drugged out and a bit ticklish.

Venom covers his legs with the lubricant, and the gooey substance itself is able to move once placed on the host's skin. The goo wraps itself around Thanos' legs, underneath and on top, and the same goes for his entire back and shoulders.

Venom purposely left Thanos' head free from the lubricant for breathing purposes.

The goo makes Thanos' body feel heavy and hot, hot enough that heat stroke could be caused if the lubricant covered his neck or if he was inside a room other than a giant freezer. Thanos doesn't know how he ended up in the spaceship's freezer, but he was positive that Venom was to blame. Once the lubricant hardened, Thanos began to sweat excessively and Venom had no choice but to remove the tentacle gag so he couldn't suffocate. Thanos gasped for air loudly, drool escaping his mouth in a black form. "Why?" He asked, eyes begging to pour with tears as he realized what was going to happen to him. "Why are you.. doing this.. to me?" He felt exhausted, but the tentacles licking at his head injury made the pain lessen. Venom chose not to answer Thanos, instead he brushed the tentacle over his lips as a warning that he would be gagged again unless he kept quiet and stuck to breathing as much as he could rather than talking. Venom loosened the restraints, allowing Thanos to lift his leg halfway, struggling due to the heaviness the lubricant caused and the slick stickiness.

Venom used his finger to break the lubricant cover on Thanos to reveal his genitals, which caused Thanos to blush and look away. "Just kill me and get on with it, please!"

Thanos hated the heat, but it wasn't long before he was distracted from it by something of Venom's. The symbiote pushed a painfully hard cock against Thanos' cheek, and black precum stained his sweaty skin, more wet and hot than sticky.

"Suck me." Venom commanded, his cock against Thanos' lips. The Titan closed his eyes and opened his mouth, consensually taking the cock inside. As Thanos' swirled his tongue over the head, Venom plunged his own inside Thanos' wet heat without any warning. Thanos moaned loudly, arching his back as much as he could, gagging a bit as he took more of Venom's cock into his throat, rubbing his tongue all over it, enjoying the taste of the precum. Thanos felt as if he might pass out from the heat surrounding his entire body and the pleasure of Venom's long tongue hitting his g-spot over and over again, multiple orgasms rocking through his body, driving Thanos crazy. His eyes began to pour with tears when Venom finally released, deep in his throats without pulling out until he was empty and satisfied. Thanos couldn't swallow all of it, and the coughed up the rest stuck in his throat on the side, gagging and retching. The drug making him sick and weak, and the overwhelming sensations of the heat and orgasms.. all driving Thanos to become the Mad Titan. He cried his eyes out, begging Venom to stop and give him more at the same time, so undecided and desperate..

3 orgasms later, Venom finally pulled his tongue out, watching blissfully as feminine cum and black saliva dripped out of Thanos' pussy. "Beautiful.. you're very talented, my love. I might need one more of those before it's time for you to go." Said Venom.

Those words terrified Thanos, causing him to cry harder and beg for his life.

"Please! Please don't kill me!" Thanos went crazy begging. "Oh no, my love. I won't kill you. Why, of course not! You never again will remember a thing, be able to wield the Gauntlet of your own accord, or see with your own eyes but no, love. I will not kill you. You and I will become one.. and I will be the master of this beautiful body. You will find yourself surrounded by my darkness, nourished by my hand, feeling nothing but mindless relaxation and pleasure.. but you will know nothing." Venom explained, plunging his tongue inside Thanos' mouth to give him the most passionate kisses of his life. Venom couldn't resist to kiss his beautiful host, he felt both utter adoration for Thanos and bitter need both at the same time. Thanos' cried through the kisses, horrified at the realization that Venom's punishment is a fate worse than death.

With a cock wet and hard, Venom moved lower into mating position, holding Thanos' head in his hands, worshipping his neck. With another drug dose, Thanos lost his energy and conscience once again, leaving him most vulnerable and quiet, sedated..

"This will only sting a little, my love." Thanos' eyes widened when Venom eased his cock inside, causing a burst of intense heat to electrify Thanos' lower body, tearing a cry of shock from his lips. Venom captured them in his, and he moved his lips and tongue against Thanos' to distract him from the harsh mating. Venom's thrusts were skilled and aimed well at the g-spot, causing Thanos to cry a river and let his hormones devour the experience. Thanos felt suffocated by the tongue in his throats and the massive cock distending his stomach with each super deep thrust, and it all became too much. The suffering and the pleasure mixed together to overwhelm Thanos, making him wish that Venom would finish the job... wishing for his time to go.

The thought of being without his children for eternity brought tears to his eyes, the thought of failure and death by possession, but Thanos didn't care.

He wanted nothing more than for this mating to end. Venom continued to thrust and distend Thanos' stomach until finally he felt satisfied with the depth inside the Titan.

With a shriek loud enough to damage Thanos' hearing, Venom came hard and deep inside Thanos, releasing stream after stream of black semen, too much to comprehend. The amount filled Thanos' womb and stomach, giving him a pregnant appearance. Thanos looked down as far as his leash would allow and imagined himself pregnant like that.. carrying a symbiote's child.. but alive is what stung the most.

Thanos knew that he would not be the one to deliver this child. It would be Venom.

Thanos' 4th and final orgasm followed Venom's satisfaction victory, and his own scream was not silenced, but allowed. Venom allowed Thanos a few minutes to take his final breaths as he pulled out, dragging some black semen and fluids out with him.

Thanos' tears stopped, and so did his gasps for air. He looked Venom in the eyes.

"If I have to go.. take me away. Make it end. It's time for me to go."

Thanos could barely whisper the daunting words, but Venom heard them and he nodded. "Of course, my love. I will always be with you. I will protect you always, I will take good of you, you will miss nothing. You have saved my life and I am eternally grateful." Venom and Thanos shared one last kiss before the Titan laid back.

Venom slowly moved forward, his mouth expanding to fit the side of Thanos' head. The rest of Venom's body opened up as well, wide enough to devour Thanos whole.

"I love you, Gamora.." Thanos thought, listing the names of all of his beloved children.

He felt guilty for never admitting them in the past, but he knew he'd never forget them.

With the snap of Venom's jaws and a burst of adrenaline.. passion.. and horror.

There was nothing but utter blackness.

The End.

Please comment, vote, and I hope you enjoyed my story! Thx for reading! ❤️