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You knew how lucky you were, working for Cretan's company. The pay was good, the perks were great, and you got fucked on the regular by mythical creatures with enormous cocks. You genuinely loved your job, something you knew not many people could truthfully say. 

But this morning, you were dangerously close to being annoyed with your boss. 

"A symposium?" You looked up from your tits—splattered with Cretan's thick cum—to meet his amused gaze. "What would I even do there? And who would take care of you while I was away?"

"You know we've hired other toys."

Oh, you were definitely pouting now. You had nothing against the other office toys; in fact, you worked really well with them, enjoyed it, even. Just the other day, you, Marie and Tiago had been involved in a fantastic orgy, getting fucked by everyone in the office until the three of you had left that afternoon walking funny. 

But you were Cretan's favourite. You were the one he always turned to when he needed relief. It was something you were super proud of. 

Only now, Cretan wanted to send you to some boring symposium while he fucked one of the other toys? 

"Oh, look at that face," he chuckled, rubbing his half-hard cock over your lips and chin and cheeks. And damn him to hell, he knew you couldn't resist when he did that. Trying to keep up a scowl while cockwarming was no easy feat, but you gave it your best effort. 

"Now, I want you to listen carefully, little slut," he said, cupping the back of your head and forcing you to look at him. "No one can replace you; I love fucking that tight little cunt too much." You felt your cheeks heat at the praise and it was hard to keep looking at him as he continued, "And I have a very important assignment for you, something I wouldn't trust anyone else with."

Fuck, Cretan always knew just what to say. You sucked on him a little harder, wanting to get even closer but still being forced to look up at him. 

"Which is why you'll be going with Kaela to the symposium."

Your perked right up at that, your breath catching. Cretan saw your expression and laughed, a deep tenor that made your whole body tingle. "I suppose you want to know what you'll be doing."

The truth was, you didn't really care and you suspected he knew that. 

"Kaela is a brilliant researcher," he told you. "But presenting her findings can be difficult for her. Anxiety, you know?" That information made your heart ache with sympathy even as you felt drool leaking from the corners of your mouth; if he'd just let you move—

"So you're going to be with her while she gives her presentation on that little experiment you did at the lab the other day."

Waiit, what?

"While she's on stage, you're going to be in a harness, impaled on her cock."

You'd been riding the edge for hours; the picture Cretan's words painted tipped you over. He fucked your mouth, hard and fast, and came down your throat this time, rounding out your belly with his massive load. 

Fuck, he was always so good to you.

Exhausted and sated, you leaned against his leg to catch your breath. He caressed you hair with one big hand. 

"Dont go to sleep, little whore," he said, voice laced with affection. "You need to go see Kaela and get your things packed."

And even though you were exhausted from being used, the prospect of spending more time with Kaela was enough to energise you. Beaming up at him, you gladly accepted his help in getting to your feet. Cretan took a moment to study you before reaching over and adjusting your ruined blouse to reveal your tits properly. 

"Get going," he said, slapping your ass. "I want to hear all about what a good little cocksleeve you were for Kaela when you get back, understand?"

You giggled as you stumbled out of his office. 

This was going to be the best symposium ever. 

"You really don't have to be nervous. It's fine, I've taken huge cocks before."

"My cock isn't just huge, sweetheart; it's… freakish."

You craned your neck to get a look at Kaela's face, even though it was hard to see anything more than her belly from this angle. She sounded kinda glum, which was the absolute last thing you wanted when you were so excited that you could barely keep still on the breeding bench you were stretched out on. Beneath you, there was this really soft, cozy fabric which, you'd been told, would act as a kind of harness for when you were impaled on said freakishly huge cock. 

Who gets sad about having a big dick?

Reaching up, you rubbed your hand along her flank, doing your best to offer some comfort. A few of the scientists from the lab were watching with rapt expressions. 

"It's okay, we'll be fine," you reassured her. "I'll tell you if you hurt me."

Kaela hesitated, shifting from hoof to hoof. "Do you promise?"

"Absolutely."

"All… all right." She mumbled something else you couldn't quite catch and took a deep breath. "I'm going to need you to guide me in, okay?"

You brightened at that. "I can touch you now?"

"If you don't mind."

Like you hadn't been gagging for her to use you for weeks. You took a deep breath, butterflies going crazy in the pit of your tummy as you gently rubbed her flank again. Finally, leveraging yourself up on one elbow, you reached out a trembling hand to grasp her cock. 

She let out a long, loud groan as soon as you made contact with her shaft. And fuck, Kaela really hadn't been kidding; her cock was massive. Even Cretan, who had the biggest cock you'd ever taken up to this point, couldn't compare. Your fingers didn't even make half way around her heft. 

Gulping, your eyes were glued to the head of her cock, already drooling beads of pearly precum. You were seized by the urge to shimmy down and make out with the massive head and smear her spunk all over your face. 

Kaela mistook your hesitation for reluctance. 

"You don't have to if you don't—" 

She didn't get to finish as you lined her tip up with your drenched cunt, holding her steady as you bore down as much as you could. 

Fuck. 

It was like having the air pushed out of you. Even having just the tip of her inside you was enough to make your head swim. The girth of her was indescribable, too much and yet not nearly enough. 

She's going to fit this whole thing inside of me. 

You were distantly aware that she was talking to you. 

—all right? Did I hurt you?" 

"N-No, it's. It's. I'm fi-fine," you managed to stammer. "Just. Surprised. Is all."

There was a long moment where neither of you spoke. Fuck, you were starting to sweat as your body strained to accommodate the mammoth cock still breaching you. 

"Are you." Kaela's voice sounded strained. "All right to continue?"

You'd be devastated if she didn't. But expressing that required a little more articulation than you had at that point. The incoherent babbling could wait until you'd sheathed her completely. 

"I'm fine," you managed eventually. "Please. Keep. Keep going." 

It was perhaps a testament to how badly Kaela needed this that she didn't argue. She just ordered you to lie on your back and hold onto the edges of the breeding bench. You obeyed eagerly, forcing yourself to relax as much as you were able as she slowly pressed forward. 

Fuck. Oh, fuck, she was colossal. The size of her was simply breathtaking, leaving you so unbearably full even when all she'd done was get the head in. Your cunt was clenching around her, greedy to draw her in deeper but conversely making it difficult for her to go any further. 

"You're so… fuck, sweetheart, you're so tight," Kaela gasped, sounding wrecked. You wished there was a mirror in here so you could see her expression, even if it was upside down. 

Fitting even a third of her cock inside you was a long, laborious process. Kaela had to stop every few seconds to get herself under control, her sides heaving as she fought for breath. For your part, it was all you could do not to buck and writhe against her in an effort to force her massive length in even deeper. You were drenched in sweat, your cunt sore and sensitive and deseprate for more. 

"I don't think this is going to work," you whined. 

"It will," Kaela insisted, voice rough. She shifted on her hooves, breathing hard. "We just. I need to." 

"We need help." You looked over at the scientists watching; one even had her hand down her pants, which was understandable but also, not the friggin' time. "You guys get… get over here. Push me down. While Kaela. While she goes forward."

Your words made Kaela throb inside you and she pushed forward a step before forcing herself to stop. The added length inside you made you keen, your body wracked by a mixture of agony and bliss. 

"I don't want to hurt you."

"This is hurting me," you blurted out. Kaela froze. "Just. Do it." You swallowed hard before adding plaintively, "Please. I need it."

"O-Okay." Kaela inhaled deeply. "I won't stop. Here we go." She waited until two of the others had come over, one on either side of you. "Be careful," she warned them. 

And then it was happening. 

With a firm but gentle pressure on your shoulders, the others pressed down while Kaela moved inexorably forward. The stretch was immense. You were so indescribably full. Her fat cock bullied its way inside you, forcing your body to accommodate it. 

"Easy, take it easy, stop moving so much—"

Their words were falling on deaf ears as you thrashed against them, desperate to escape the invasion even as the pleasure threatened to engulf you. It was so much, your cunt clenching and spasming and swallowing it all up and still greedy for more. Orgasms were rushing through you, making you shudder and gasp and clench up, milking at the cock that was barely half-way inside of you. 

You were babbling now, begging incoherently for her to stop, to go deeper, to fuck me, please, just fuck me and the stretch continued until the flared head bumped up against your cervix. 

Kaela groaned at the obstruction, her hips thrusting spasmodically. The uneven thrusts made you cry out, bucking as hard as you could against her. 

"Maybe we should just give her a minute…" one of the scientists was saying. 

"No," Kaela said, sounding almost feral. "No more waiting."

With one tremendous shove, the head of Kaela's cock popped through the tight rings of your cervix and directly into your womb. 

You screamed. It was hellish anguish, it was heavenly ecstasy. Tears streamed down your cheeks as you felt your tummy bulge from the intrusion of her magnificent cock spearing you open. Darkness threatened to intrude, exhaustion doing its best to tug you under, but you willed it away. You wanted to remember every single moment of this. 

I'm nothing but a cock sleeve. 

Kaela didn't seem to be faring any better than you. Her breathing was coming in harsh pants as her cock throbbed inside you. And even though you were weak and worn out, there was one last thing you needed before you surrendered to sleep. 

You needed Kaela to cum inside you. 

With tremendous effort, you lifted your hands up to your bulging belly, rubbing your hands over your skin as you clenched down with your cunt as hard as you could. 

The reward was immediate. 

Kaela made what sounded like a snarl before her cock gave a forceful kick inside you, releasing a barrage of cum. Spurt after spurt flooded your insides and rounded your tummy out even further until breathing became difficult. She came with loud hungry grunts as her hooves stomped the ground beneath her and you didn't think you'd ever been part of anything so glorious.