They Came from Beneath Pt. 03

This is an alternate mpreg ending, intended to be read directly after Part 01 (replacing Part 02).

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The pressure of spunk filling his guts and sliding thickly down his body makes Will shudder in convulsive pleasure. His hot skin feels like it's covered in sparkles, and that feeling starts to spread all through him until his entire body is full of pins and needles. The heat is growing inside him too, to an uncomfortable level.

He groans and struggles weakly in the tentacles, hazy thoughts troubled. What... is happening...? He can barely see Ares next to him, his limbs moving sluggishly, wrapped in muscular loops and hidden under a layer of slime.

"Mgghggm..." Ares sounds like he can hardly breathe with the tentacle deep in his throat, its warm slime filling him, and Will's own mouth bubbles with each breath too.

Relax. Accept. Will feels like he's melting, his body malleable enough to be reformed into whatever shape that commanding voice desires. His struggles still as he gives himself over to its wishes, and the voice rumbles approvingly in his mind. The tingling grows, making him pant for breath, driving all other thoughts from his head as his body is slowly remade. At last the hot sparkling begins to fade, and the tentacles pull wetly out of their mouths, trailing slime. Yes, good boys. You are ready.

Ready? Ready for what? But before Will can wonder more, the slippery length is suddenly sliding out of his overflowing ass, only to have the thickest tentacle yet push up between his legs in its place. "Aaahm!" His body arches as it breaches his unprotesting sphincter with a wet squelch, filling him deeply in an instant, his guts shifting to make space. The slimy shaft starts pumping in and out of him, a bulge visibly sliding under his abs with each thrust, the long lines of suckers popping against his straining entrance.

The pleasure is overwhelming, driving him crazy. He barely knows what is going on as the tentacles roll him over and he suddenly finds himself pressed full-length against Ares. His friend's skin is so warm and slippery, his hard nipples rubbing against Will's own, making his ass spasm around the thick girth stretching him open. The slick slide of their bodies against each other makes them squirm, unable to stay still while the fat tentacles fuck deep inside them.

Ares looks up at him, his lashes sticking together into starry points with slime and cum, and Will closes his own eyes and moans slightly as the tentacles slither and writhe inside them. Fuck it, Ares is so hot, and the feel of his body against his is making Will's cock throb. Does it even matter what the tentacles have done to them? Will wraps one leg around him, rubbing his rigid length against Ares' slippery thigh, his other leg pushing up between his friend's as his hips buck into him.

Fuck! Is it something in this slime? The feeling is so intense! Ares' lips find his, kissing him between their gasps and panting breaths. Then Ares lets out a mewl of pleasure and presses into Will as tentacles suction onto his nipples. His cock is dripping precum down Will's leg, almost on the edge of another orgasm so fast. Good boys, the voice praises them, You are ready. You will carry the brood.

Alarm pings faintly somewhere deep in Will's brain at those words, but the next instant it's buried under wave after wave of pleasure as the tentacles begin to fuck them faster. They quickly swell inside them as they continue to thrust in and out of their fluttering holes.

Now cum! Will's mind and body are already so used to obeying the voice's commands that he loses all sense of self as the order floods their minds and their cries of ecstasy are released simultaneously, breathless and gasping. As the tentacles swell inside him, stretching him even wider, Will rides a chain of orgasms, never coming all the way down from one before the next one spasms through him again.

"Ahh! Ahh!" Ares' breathing quickens against him, moaning as the tentacles begin to pump something into their guts. It slips and slithers inside them, obviously not cum, but something alive, wriggling. More keep coming, more than seems possible to fit inside, and Will can feel his flat stomach rounding slightly, pressing against Ares. His eyes roll back, overwhelmed with everything that is happening as his muscles clench into another orgasm. Is this what the voice had meant by 'ready'? Had the tentacles altered them for this use?

The entire time they are cumming, the deep voice pummels their minds, alternating between commands and praise. Accept. Obey. Return.... Gooood boys.... Accept. Obey. Return... Good brood vessels! Their brains are filled with visions of seeking another body of water, wading out, feeling the many slender tentacles of the growing young inside them begin to slip and push their way out of their bodies before they at last struggle free and swim away into their new home.

~

They come back to their senses slowly, laying on the grass at the edge of the teal-green waters of the alpine lake. The snowy mountain peak is reflected in its smooth surface like a mirror--not a ripple in sight. Will looks over to where Ares is pushing himself up with his shaking arms, his belly softly rounded with the tentacles' brood, and he spreads his hands over the uncomfortable bulge of his own stomach. This is their duty now, to deliver these young to an appropriate home.

As they climb to their feet, their bodies are still hypersensitive; the feel of Will's legs touching each other as he rises is enough to make his cock throb and a light moan escape his lips. This is the tentacles' gift to them: along with their new capacity to safely carry the young inside them, they have been given an incredible capacity for pleasure. And every time they edge, every time they cum, they will remember. Because deeply implanted, rooting down into their brain stems, is one command: Return. They are allowed to go back to their lives as best they can, but they are the tentacles' breeding stock now, and one purpose supersedes all others. When they are called, they will return to be of service.

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They glimpse the small lake through the trees, and Will feels sudden movement inside him, a flexing, a sliding. His belly cramps and he grunts, putting his hand up to it, but then his furrowed brows relax, a dreamy look softening his features as any worries he might have are washed away in a rush of warmth spreading down his neck from the base of his skull and through the rest of his body. Ares moans next to him and Will looks over, their eyes meeting with a conspiratorial grin. Then Will's attention is drawn back to his belly, something pushing against his hand, and when he looks down he can see the brood moving inside him, the surface of his unwieldy stomach faintly bulging and shifting.

They know what to do: they shed their clothing and walk out into the water, lay back naked in the shallows, spread their legs. When the cool water laps up between their asscheeks, the movement inside them increases, and they begin to pant as the first of the tentacle brood start to force their way out. They are covered in slime, thoroughly coating Will and Ares' taint and thighs as they squirm and wriggle and finally sliiiiiiide free in a long, slippery burst. Both men cry out, bodies spasming with sudden orgasm as the two tentacles swim eel-like out of view in the water.

They are still cumming as they feel more of the brood start to push their way free, each one giving them a renewed orgasm as its length slides out, a last 'thank you' for carrying them here. Will shudders and a long moan rolls through him as two and then three tentacle young try to push their way out of his ass at the same time, stretching him wider yet, his mind floating in a haze. Three... four... they soon lose count of how many times they've cum, minds melting with constant pleasure, unable to comprehend numbers anymore.

There's no way to tell how long it's been when the last tentacles finally slip free of their bodies. Will lays there in the shallow water, panting heavily, emptied and light. He opens his eyes lazily as Ares rolls over on top of him.

"Ohh, Will," Ares says breathlessly. And somehow Will is aware of what Ares is thinking, even without him voicing the words: what an amazing experience this has been, ever since they jumped into that lake.... Ares leans down and kisses him, their minds full of the shared knowledge that their lives will never be the same. Will smiles happily and wraps his arms around Ares as he softly kisses him back, exhausted and satisfied.

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(Adapted from an RP)