Page 24 of Entranced By the Nakken (Freedom, Love, Monsters #4)

Casey

Oh, fuck, oh, fuck, fuck, fuck.

Casey was in over his head in the most exhilarating way possible. The idea of seeing himself rounded by cum was so insanely fucking hot, he didn’t bother to examine the words Tsunis used to describe their plans for afterward.

He was abruptly tossed onto his stomach, roughly but with care.

Tsunis would never hurt him, at least not in a way that wasn’t also pleasurable.

His hands scrambled for purchase on the slippery rock until Tsunis brought them down behind his back, entwining their long, webbed fingers with his, their inhumanly wide palm easily grasping both.

Casey cocked his head to the side. With the downward slant of the boulder, he didn’t have to crane his neck to watch what was happening to him.

Tsunis loomed above him, their legs bent at an unnatural angle, webbed feet gripping the stone like a bat hanging in a cave.

Their tentacles were coiled tightly, the bottommost part a fat bulb.

Clear liquid thicker than human precum dripped from the tip, but also from hidden seams along the stem that writhed in their package.

Casey’s eyes locked on the large, rounded base. He’d seen Tsunis’ genitals before, but the bulbous part had never swelled that large. From the slickness that oozed out with each pulse of the coil, causing a sheen around the whole thing, Casey could only assume it was full of the stuff.

Which would soon fill him all the way the fuck up.

Casey’s eyes drifted up, along lean muscles, including some which were not visible in Tsunis’ most human form.

The skeletal system in all the textbooks were thrown out the window for this majestic beast crouched above him, limbs bent back, ready to plunge into his ass and pump him full of a foreign liquid.

His eyes snagged on Tsunis watching him with a tempest in their gaze.

Fuck, they were fucking radiant, forcing Casey’s submission without having to try.

It was all so fucking hot. Too hot. Casey’s back arched, pushing his ass into the air, hoping to spear his own ass with the tip of Tsunis’ tentacles.

“Please,” Casey begged. He couldn’t remember the last time he begged for anything from a lover, but he was desperate to find out what it meant to have Tsunis play with their own slick between his legs. “Please, fill me. I’m ready. I’m yours.”

“Hmmm.”

Tsunis used their web-widened hands to peel apart Casey’s ass.

Whatever magic they’d performed with that vicious tongue had Casey’s hole soft and ready, and with his ass cheeks spread open, the emptiness was unbearable.

Hell, he was so empty, he might even be able to fit the bulb at the bottom, and it still might not be enough.

“Come on!” Casey growled in frustration. “I’m yours, but you’re fucking mine, too, right? You’re mine. Fuck your mate, fucking please, Tsunis, quit fucking around!”

Tsunis’ eyes flared pure white like the foam of the ocean tide before flickering with blue light and unadulterated lust. A tentacle uncoiled from their writhing tip, a stream of clear liquid flowing from it like a tap. It dripped into Casey’s wide-open hole, thick, warm, and viscous.

So much. There was so much fluid entering his ass, he could feel it traveling deep, deep down his channel. It pooled at the opening of his anus, open and exposed to the elements, then overflowed.

“Ohhh,” Casey moaned, momentarily forgetting to be angry at Tsunis for not fucking him yet.

Tsunis fucking purred. Their thumb, millimeters from Casey’s asshole, rubbed in circles to encourage the fluid inside.

“Sweet Nymphaiia. You are a treasure. See how your body reacts to my slick? Do you feel that—the need?” More liquid dripped inside, the steady stream a slow, warm presence down his canal.

“Yes—oooh—but—unnfff—but I’m ready for more, for you.”

Tsunis made a deep rumbling noise, then, to Casey’s relief, stated, “Yes. You’re ready.”

The first tentacle to breach Casey’s ass was little wider than Tsunis’ tongue, but it forced the thick precum deep into his rectum. The pressure on his prostate was intense, and when another gush of fluid spewed deep, he wasn’t sure he’d be able to take the massive bulge after all.

Damn if he wasn’t determined to try, though.

“By the Goddess, I will never take for granted what a magnificent mate she has granted me.” Casey was surprised he could hear Tsunis’ reverent rambling over his own animalistic noises.

“My beloved Nymphaiia, you take to my slick so well. I’m sure you can take more.

Is that what you want? More of my tentacles in your pretty hole? ”

Casey nodded feverishly. He tried to demand more, more, more, but nothing coherent found its way past his trembling lips.

“Anything for you.” There was a hint of amusement behind Tsunis’ words, but Casey was past caring, especially when more tentacles entered his greedy ass. One broke away to stroke and tease his prostate.

Casey’s mumblings became even more nonsensical as the relentless appendage teased and stroked, while other tentacles fucked past it, deep into him, in and out, in and out; and yet more teased his sack, tugging, squeezing, caressing, cupping.

“Oh, fuck, Tsunis, fuck, yes, yes, fuck,” he rambled, his voice shrill.

“My perfect Nymphaiia.” Fuck, he’d never felt more beautiful than when Tsunis talked to him like that. “Take it. You’re doing so well. Do you need more?”

“Y-yes, please.”

More slippery appendages breached Casey’s asshole.

Unlike when he’d explored their tentacles, all different sizes and working independently, they now formed an unmistakably phallic shape.

Except, instead of being rigid and hard, they were pliable, widening to stretch Casey from the inside out as more slick filled him.

Tsunis was quick to pick up on the spot behind his prostate, keeping constant pressure there as the rest of their flower blossomed inside him, tentacles uncoiling to explore every possible inch.

“Mmmm, oh, mmm, fuck, fuck, Tsunis, oh.”

Warm, wet, and obscenely noisy, a bouquet of tentacles massaged him from the inside out, stroking places inside him he’d never imagined could feel such intense pleasure.

He couldn’t fight Tsunis’ wide, webbed hand gripping his wrists, couldn’t writhe, couldn’t move at all.

He was immobilized by pleasure. Fuck, he was so warm and cozy, as boneless as cheesecake batter.

The hard, mossy boulder was cushy as a goddamn cloud.

He could almost fall asleep. He wouldn’t sleep on their first time, but in his foggy brain he made plans to request a night massage some time.

“You’ve taken to me quite nicely.” Tsunis’ voice was right beside his ear, and Casey opened his heavy lids to see their unnatural form curled over him. A long, Venom-style tongue lolled out, licking from the bite marks on his neck up to his earlobe. “I’m going to fuck you full now. Ready?”

They were offering another opportunity to say no, to deny whatever pregnancy kink they clearly had about him.

While it was interesting to discover he was aroused by the thought of being bred, Casey couldn’t say whether he believed it possible.

Tsunis had shown him many impossible things.

Carrying life inside himself, a life made possible by Tsunis, sounded like the best impossible possibility yet.

“I’m ready.”

Tsunis’ demeanor transformed before his eyes. Gone was their soft, adoring gaze, replaced with pure sinister promise. Their tongue disappeared in favor of razor-sharp teeth, two rows on top and bottom.

Pain stung Casey’s neck, shocking his system, before being immediately soothed by a wide, flat tongue.

The massage wildly changed course. The coil of tentacles formed inside him once more, wide enough to keep his hole stretched past a point that would be comfortable if not for all the preparation.

Tsunis took up a wide stance with their webbed feet, both hands gripping Casey’s behind his back.

Leverage was on their side as they pounded into him with harsh snaps of their hips, gushes of slick oozing to fill him with every sloppy thrust, the slapping sounds between them sounding wetter than the brook itself.

A mess grew between them, and yet the bulb at the bottom of Tsunis’ flower butted against Casey’s opening like a battering ram.

A sting of pain accompanied Tsunis’ roar, which somehow sounded musical, because of fucking course it did. The wide bulb melted into Casey’s ass.

Although the tentacles had a certain amount of give, it was a lot to take at once. His body stretched around this new invasion, and Casey was grateful when Tsunis stopped moving.

Then he felt it. First a trickle, then a rushing current. As promised, a waterfall of cum flooded his system.

“Oooh, oooh, fuck,” Casey groaned. He was starting to understand what all that talk of filling him to capacity had truly meant.

“My sweet Nymphaiia,” Tsunis purred, gently rolling Casey onto his back without losing a single tentacle. “How astonishing you look this way, so full and round. If I could, I would keep you this way for the rest of our days.”

“Yes, please, yes.”

Loving hands stroked Casey’s lower belly.

He waded through the sweet, molasses haze of pleasure to look down.

His belly was distended and growing before his very eyes.

Tsunis cupped Casey’s swollen lower abdomen, petting it adoringly.

Tsunis’ thick cum filled him so completely, it would certainly leak from his rectum if not for the tightly-balled tentacles plugging it in place.

Tsunis continued to pet his belly. The motion was so nurturing, Casey momentarily forgot there was no possible way he could bear their offspring.

He surrendered to the role-play, picturing Tsunis teaching their child to play the violin, Casey accompanying with whatever ridiculous vocals the kid made up.