Aeris had not gotten into size play because he had eyes too big for his asshole. It had started out as a dull curiosity instead, a means of actually getting his masturbation sessions to come to a finish instead of losing interest (and erectile power) before he spilled. Pain was the quickest and easiest way to remind himself that he was still alive, but edging wasn’t his thing, and he hadn’t enjoyed accidentally blue-balling himself. Some bored digging into how to spice up his (solo) sex life had introduced him to prostate play, and then to size kink, and the idea of training his body to process pleasure differently than the easy way out had sparked a curiosity in him that he threw himself into wholeheartedly.

Sex, he soon discovered, was easier when he had a goal in mind- at least, one other than bodily maintenance. He had gone to the Drifter to teach him, and that was good, but Drifter had a soft open heart under his sly exterior, and Aeris feared what would change between them if he continued seeking him out for intimacy. The way that he’d carded his fingers through his hair and whispered praises to him when he traced his tongue over the scars circling the base of his dick had felt too close for comfort already. The way he could play with his prostate until he was just a melted puddle in his lap was great, but not if it meant that Drifter would come to want something that he couldn’t reciprocate.

Misraaks had been a much more inviting option. He was a Kell, and thus he was far too busy to think about romance, if he even had a taste for it to begin with. That Misraaks had a pair of hemipenes longer and thicker than his own forearm had simply sweetened the deal in his eyes- even if he was far more cautious of them than he needed to be.

Granted, he hadn’t offered his body as heat relief (or, as the Eliksni called it, the Gnaw) because he knew Misraaks was well-endowed. He’d done it because he’d seen the way that Misraaks was silently suffering under the demands of his own body in person, and wanted to help. With the species difference and his status as the Young Wolf, he was both high-ranking enough to be an appropriate match for a Kell, and an improper enough fit for the concept of long-term mateship to be out of the question. And he didn’t have the means to start ovulating when the barbs of Misraaks’s cock raked over his walls. It was a win-win, really.

Aeris leaned back against the bulwark of Misraaks’s thighs, his own legs trembling from a mixture of pleasure and exertion. With a brain fogged with pleasure, he reached down to feel the bulge poking through his abdomen, his skinny frame doing nothing to hide the way it twitched and writhed inside of him, sending inescapable pulses of electric pleasure up his spine. Misraaks’s second hemipene dragged over his belly, a slick, warm pressure between his balls. His own dick bobbed uselessly next to it, tip flushed a deep red as it dribbled precum, almost comically small next to it. Misraaks himself was nearly lost to the fog of the Gnaw, head tipped back, eyes closed as a long, low groan rattled in his chest. All of his claws were sunk deep into the fabric of the nest, gripping tight enough to threaten to tear through the silken fabric; Aeris wished they were digging into his own flesh instead.

One day, Aeris thought feverishly, one day he would be good enough to take them both. But for now, the one inside of him was all he needed. With a hiss of exertion, he forced himself to continue riding the Kell of Light, stroking both hands up and down the other hemipene so that he wouldn’t be tempted to touch his own dick. He was too close already. Too close, and he wanted to see if he could cum like this, if he could force his body past the limits of its coding to take its pleasure from being fucked alone.

Evidently, he wasn’t moving fast enough for Misraaks. With a sudden snarl of frustration, the Kell suddenly surged upright, cradling Aeris’s body with his left hands. Mumbling an apology in a raspy, near-unintelligible voice, he rolled the both of them over so that Aeris was on his hands and knees with Misraaks draped over his back, Misraaks physically twisting him around on his dick as he did so so that he would not need to pull out. Aeris cried out, and Misraaks’s claws dug into his hips in response, his growl turning to a low, frantic rumble as he began to fuck Aeris proper, hard and fast and desperate for release.

The sudden sting of claws pricking his skin paired with the drag of a cock over his prostate was divine. Aeris arched into the sensation, his moan growing choppy as Misraaks jolted into him, and tried to blink back tears of overstimulation. Misraaks had spilled in him already, and the ether in his spend had gone to his head. He felt too big for his body, nebulously drifting outside of overwhelming pleasure surging through his veins, but the cold prick of pain grounded him, made it real.

Misraaks’s jaws lolled open, mandibles hanging loose. He was apologizing, for some reason- apologizing for being so rough, so needy, for making such a mess out of him. The words were slurred, drunkenly incoherent, and so Aeris tuned them out. Instead, he reached a hand up to grab a mandible and pull his head down, forcing Misraaks to press his muzzle to his shoulder as he reared back a bit, huffing in confusion.

“Bite me,” he begged, senseless to anything but the sudden need for more pain. He was close. He was so close and he wanted it, he wanted it, he needed the sting of teeth and the prick of claws and the drag of hot barbs over his swollen prostate. Pain, pain to balance out the overwhelming pleasure, and he was aching to cum so badly he could almost cry. “Bite me, please bite me.”

Misraaks did not bite him. He hilted himself in Aeris instead, grinding his hips against the bony jut of his ass as if it was physically impossible for him to stop moving, and gently pried his fingers off of his jaw, voice strained from restraint. “You do not know what you are asking.”

Aeris nearly sobbed in frustration. He was so close it hurt, and the heavy pressure of Misraaks’s cock grinding against his prostate was just not quite enough to get him off. “I can take it. Please.”

“No.”

“Please, I need it, I-” Misraaks’s teeth closed on his wrist, his large mandibular teeth shallowly piercing his forearm as he gave a few hard, sharp thrusts, and the piercing, aching pain was enough. He came with a sharp cry, legs trembling uncontrollably as he spilled untouched, and Misraaks fucked him through it, a soothing rumble underlaying the wet slap of his hips and Aeris’s whining pants. The flat plane of his tongue lapped away the blood beading on his pale skin as Aeris watched, mind hazy once again from overstimulation.

It hadn’t been a full bite. More of a gentle nip. There wasn’t even any nerve damage when he flexed his fingers. As Misraaks resumed his rough, fast pace, trilling with urgency, Aeris pulled his arm back to his mouth and bit down himself, digging as hard as he could into the marks with his own flat human teeth, a defense against the pleasure as it passed over the knife’s edge of too much.

Misraaks came with a near-silent gasp, flooding his guts and splattering his front with warm, ether-rich cum. Aeris felt it hit immediately, a rejuvinating jolt that sent a surge of energy through his limbs, but Misraaks didn’t linger this time. He pulled out, leaving a veritable flood of cum in his wake, and rolled onto his side to hold Aeris close, panting hard. Aeris let go of his own arm to look up at him, and found the kell staring at the mark he made with heavy-lidded eyes, an indecipherable look in the cerulean depths.

He made a soft noise in the back of his throat, holding it up in question. But Misraaks just shook his head, taking Aeris’s arm in his own to smooth his thumb over the angry red marks. His spiracles flared as he exhaled, warm air tickling Aeris’s ribs. He squirmed a bit, wincing as the gelled spend on his stomach pulled at on the short hair there, but Misraaks didn’t seem to notice that either, dropping his arm so that he could pin Aeris tight to his chest.

“Later,” he said, voice still thick with his mating-rumble. He hadn’t yet sheathed himself, which was a telling sign that the Gnaw had gripped him in full- that, and the sheer amount of ether in his seminal fluid. Aeris felt as if he was starting to float, and it wasn't from the overstimulation. “Let us rest for now. I cannot think clearly enough for this.”

Aeris just grunted his assent, closing his eyes. He wanted water, but the prospect of moving right now was starting to become more and more unappealing. His arm was sore, as was his ass, but it was a good, comforting soreness, and Misraaks was holding onto him with all four of his arms, squeezing him tight. He was content to just sleep for a bit before the next wave hit, and then Misraaks would be waking him up again, needlessly apologetic for the interruption. His curiosity could wait.