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Jace and Jacob found themselves waking up in some sort of underground den (or rather, a holt) the next morning. It smelled like fresh water and dirt with a rather musky and distinctly male undertone, which neither brother found particularly unpleasant. Somewhat more displeasing was the dried cum that covered their bodies; it seemed like the wereotters had kept going after the brothers had passed out. Of course, the fact that it was cum wasn't the biggest issue; it was that cum stuck to their new, soft brown coats of fur. In fact, it was probably the part about not being human anymore that bothered them the most. Specifically, it bothered Jacob the most.

"Well, this is a fantastic mess we ended up in. Gang-raped, transformed, and I think I have to commit suicide if I want to get out of this with any of my dignity or pride intact", the older brother lamented, his new tail thumping into the ground after every few words. It got on his nerves more and more and in a few seconds he jumped and seemed to fold in two as he grabbed the thick rudder. "And this damned thing keeps moving on its own!" he yelled, gripping his tail with such strength that his knuckles probably turned white under the thin layer of fur.

Meanwhile, Jace wasn't quite as frustrated. He was exploring his new form with quite a bit of fascination. His chest was lighter brown, and he found his nipples under the fur, along with six new ones down his body. They hadn't lost any sensitivity. He didn't dare touch his crotch with his brother so nearby, but from what he could feel it hadn't lost any sensitivity either. Rather, the protective sheath felt quite comfortable, keeping his cock snugly resting against his body. He brought a hand - a paw? - to his face and followed the contours of his muzzle. It was broad, with bristly whiskers adorning both sides, crowned by a big silly otternose. Feeling his head, he appeared to have lost his human hair, but the fur on his head was slightly longer than on his body, so it wasn't an entirely bestial shape he had been given.

Looking at his brother, who was running his claws along the tightly-packed dirt walls of the holt, he couldn't help but feel a twinge of arousal. And jealousy; he was lithe and small, as he had been as a human. His brother, on the other hand, was rather well built, and he could see his muscles flexing even under the fur. He was larger than he had been, with broad shoulders, and even his tail seemed stronger as it swept around seemingly on its own. A quick glance at his groin revealed that he was no less well-built down there, and his sheath seemed swollen even when flaccid, appearing almost twice as big as his own. Jace averted his eyes.

"Well, we'll have to do something-" He began.

"SOMETHING? Like get fucked by more of those beasts? You seemed to right fucking enjoy it, while letting me get violated. Something like that?" his brother snapped, pouncing Jace. He was heavy and muscular, and Jace couldn't help thinking it was the perfect form for a hunter. He also doubted his brother would get fucked again, even if the otters could subdue him; he was certainly at least as large as the big males, and felt even stronger. Of course, his attention was mostly focused on the iron grip around his neck that pushed his head into the dirt. "I- I couldn't- and you-" He wheezed, struggling helplessly. Small sparks flew across his vision as it seemed to narrow, first to grey and then increasingly dark, and his brother only let go after what felt like seconds away from him passing out.

"Sorry. I suppose I can't blame you. No different than being mauled by a werewolf. Maybe..." Jacob muttered, clenching and unclenching his fist. He was definitely quite full of adrenaline and barely-contained anger.

That was when they got interrupted, though given that the small room they were in had no door they couldn't quite figure out why they hadn't expected it. "Oh, good, you're both awake and getting frisky already. Perfect!" the otter exclaimed.

"That's not-" Jace began while Jacob simply glared.

"Oh, as if I couldn't smell it. Ooh-" He turned his eyes to Jacob. "You certainly turned into quite the specimen; maybe you can breed the next hunters. Just be done with your brother before the next blood tide."

"Why aren't we in human form?" Jacob blurted out.

"Oh, we never are. It's just a rumor we put out; the blood tide is actually just the time we bring new blood into the romp. Clever, isn't it? Oh, and you can call me Chirp. I started out as a plain ol' riverdog, though this form is much nicer." He said, rubbing his quite sizeable sheath absentmindedly with a silly ottery smile on his muzzle.

He stepped over to Jacob, who was now standing up. They measured up quite evenly as far as muscles went. "So how about a go?"

Jacob clenched his fist again, but was surprisingly restrained otherwise. "Is it a fight you want? I'm not gay." He growled.

"Oh, you are now. " Chirp chuckled. "Just look at my sheath and tell me you'd prefer a female."

Jacob looked like he was going to attack. Jace saw his eyes drift down to Chirp's crotch. Then back up to his eyes. And back to the crotch.

"...turn me back right this instant." He growled.

"Nope, we can't do that. You'll find this a lot more pleasant than being straight anyway, you'll get to mate so much more. You could start with your brother. He's practically begging for it and you should really put your new cock to use." The otter smiled.

Jace felt like he was in a dream. He was incredibly turned on at the prospect of fucking his brother, or the other otter, or anyone for that matter. He realized he was also fully erect and blushed. He could smell the same thing as last night - the one he thought was pheromones - or maybe just the natural musk of the two incredibly studly otters arguing right next to him. Only it was stronger how, thanks to his new, sensitive nose. He absolutely needed to get fucked, right now; maybe this was how females in heat felt.

As it happened, his brother was closer.

Jace pushed his muzzle right into his brother's crotch and inhaled deeply. He took a firm grip of the fuzzy, warm sheath and started rubbing gently but not without a sense of urgency.

"He gets the idea. Now let's see you resist your new urges, you big gay beast." Chirp laughed, stroking his own half-erect cock in anticipation of the show.

Jacob wanted to punch the otter right in that smug face of his, but his body was responding to his brother's affections all too strongly. He wanted to tell Jace to stop, but he could only huff when he opened his mouth, and looking down, he was already totally hard, with his cock at some nine inches resting in Jace's palm as his brother kept rubbing it, with the copious precum of his new species only making the movement slicker, more seductive. Then, as he stared, mortified, his brother licked the tip, his nimble tongue scooping up a glistening bead of his pre. It sent tingles of pleasure up his cock, down his heavy balls and up to his head, and it felt like his common sense was shut off right there and then. As if on autopilot, he found his hand resting on his brother's head, though he didn't have to apply any pressure; the touch was encouragement enough for the smaller otter to take the throbbing length deeper into his muzzle, with his tongue licking along the underside. Soon enough, Jacob could feel his brother's hot breath against his balls, and he couldn't help but groan.

Chirp was quite eagerly pawing himself off while watching as Jace began bobbing his head up and down Jacob's slick, throbbing length. The small room was quickly starting to smell of rutting males, of raw arousal and tangy sweat. Jacob felt both incredibly wrong and incredibly right, again - for the second time since yesterday. He couldn't be humping his brother's bestial muzzle, but he was, his hips had started rocking on their own and he was sliding his cock in and out of Jace's warm, wet muzzle. And he was enjoying it, his cock drooling that slick ottery precum right down his younger brother's throat. The scent didn't help, making his head foggier and foggier with each heavy breath. He knew he shouldn't react that way to other males, much less his own brother, but damned if he couldn't help it; it simply felt natural, even right, in some way. He wasn't entirely pleased by the situation in its entirety but had he been offered his own life back in right that moment, he'd have declined. Because he wanted more.

He pushed Jace onto his back, onto the cool, compact dirt floor of the holt. Grabbing his brother by his ankles, he effortlessly hoisted his legs upon his broad shoulders, and bent down to kiss him. The feeling of wrongness melted away into lust and love as his tongue ran along the otter's lips. With his cock resting against his brother's twitching thick tail, it didn't take many little humps until he felt his leaking tip touch bare flesh, and the feeling made him thrust harder, instinctively.

Jace felt his brother's cock start to sink into him, spreading his eager hole wide. As his tongue tangled with Jacob's, he felt relaxed, his sphincter offering no resistance to the incestual mating, as if he was meant to be a submissive, lusty cockwarmer. The thought of it, the fantasy that he could service all the wereotters, along with his brother, leaking warm cum all the time was enough to make him clench, eliciting an excited groan from Jacob. So he clenched again, angling his body upwards and moving his hips as much as he could to get more of that thick maleness into him. It was thicker than any he had taken as a human, and if all the otters were this well hung, well, he didn't even want to consider going back to his human life. And that was before the whole head slid into his body.

Jacob sighed with euphoria as he hilted his cock into his brother, savoring the silky smooth texture rubbing against his cock, the warmth, the tailhole clenching around the base of his length. There was no going back; he didn't think twice as he started rutting his own brother, his cock spearing in and out with a primal rhythm.

At that moment, Chirp climaxed with a sharp moan, his thick seed splattering over the faces and muzzles of the kissing, mating brothers. Jacob recoiled at first, but Jace eagerly lapped up every slimy strand his tongue could reach, and then pulled his brother back into a passionate kiss to share the salty, tangy seed. He resisted at first, but quickly relented as he kept thrusting into Jace's ass and let him spread the ottercum around, even letting his brother scoop up the cum on his own muzzle and add it into the kiss. He had gotten a good, full taste of the otters' cum earlier, after all, and while the concept disgusted him, it did taste like pure, raw arousal. He found himself teetering right on the brink of orgasm, and with a few more thrusts, he sheathed himself fully inside his brother.

Jacob groaned into Jace's muzzle as he filled him, pulse after pulse of sticky cum shooting from his heavily throbbing manhood and deep into his brother's body, where it belonged. The sensation was enough to send the other otter into the ecstatic convulsions of orgasm too, and his submissive seed sprayed all over his tawny belly and chest as he felt his brother's hot seed filling him with blissful wet warmth.

As they both laid there panting - Jace more than Jacob, since his brother's heavy body was resting on top of him - they couldn't help but figure this new life was, after all, pretty good, even if it was bestial and probably more incestuous in the future. "Guess I love you in more ways than one, little brother." Jacob murmured, and the two other otters giggled.

But they did have brief second thoughts when the rest of the wereotters, attracted by the earlier noise of rough mating, entered the room, all quite clearly excited and ready for action. Well, Jacob did, anyway.