Beasts of the Night

By Slave Bear

Published on Jan 22, 2025

Gay

This is a Gay, Science Fiction story. You can use my email address, and I accept the nifty.org terms. I encourage everyone that reads and enjoys this story to consider supporting Nifty.org to support the archivist and keep the archive online. You can learn more here: http://donate.nifty.org/donate.html

As a note to the reader, while characters in this story are over eighteen, the narrative contains descriptions of bondage, anal and oral sex, and body modification. If any of these acts offend you or are illegal to read where you reside, please move on. This is a work of fiction. Any resemblance to actual persons, living or dead, events, or locales is entirely coincidental.

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Chapter 10: Spring Heat

The trio's den finally became a home as winter passed into spring. It was natural to hunt every day as it would have been to study or play games on the computer in their old lives. However, the season had started a change in Jake. It began with minor changes in behavior - a short temper at times and mood spells at others. Jeff and Dave were concerned but tried to comfort their packmate as best they could.

One afternoon, Jake had decided to retreat into the cave while the others went out to hunt and gather food. He told them he had a headache and needed to be alone. As he lay in bed, he groaned. The pain in his head had ebbed, but his skin was now tingling with an unfamiliar heat. His eyes fluttered open. The rough cave walls seemed to pulse around him as his senses sharpened. A primal ache bloomed deep in his core, radiating outward until his whole body thrummed with need.

"What's happening to me?" he gasped, his voice hoarse.

Waves of desire washed over him, each more intense than the last. Jake's paws roamed his body, desperate for relief. His fingers brushed over sensitive skin, eliciting a throaty moan that echoed off the cave walls.

"God, I need... I need..."

His thoughts were a jumble of carnal images - Jeff's strong paws, Dave's muscled chest. Jake's body cried out for their touch, their taste. He imagined Jeff's gentle caresses and Dave's playful nips.

"Jeff? Dave?" Jake called out weakly. "Where are you guys?"

He struggled to his feet, swaying as another surge of heat pulsed through him. Jake stumbled towards the cave entrance, drawn by an instinct he didn't understand. His companions' scents filled his nostrils - Jeff's earthy musk, Dave's pungent sweat. Jake's body responded instantly, desire coiling tight in his belly.

"Please," he whimpered. "I need you."

Jake's paws clenched into fists as he fought to control his overwhelming urges. But his body betrayed him, trembling with want. He sank to his knees at the cage entrance, overcome.

"I can't... I can't fight this..." he said to himself.

"Jeff? Dave?" he cried out again, more urgently this time. "Help me... please..."

Dave and Jeff were in the woods telling jokes and laughing. The carcass of a deer was slung over the big beast's shoulders, a prize from their morning hunt.

"Who would have thought the two of us would end up out here like this," Dave said.

Jeff chuckled.

"It's a far cry from our life at college. I am surprised you have lasted this long sober. You always had a beer in your hand."

Dave laughed heartily. He turned and licked at the fluids dripping down the deer's neck.

"Eh, this warm, fresh blood is better tasting anyway," he said, licking his lips.

Jeff rolled his eyes.

"You know I worry about you sometimes. You are going to end up with worms eating things raw."

"Phht!" Dave retorted.

Jeff stopped and froze. His ears flew forward, and his nostrils flared.

"Did you?"

"Yeah," Dave replied. "I sense it, too. Jake needs us."

The two broke out in a run, Jeff on all fours and Dave attempting to stay on two feet, though it was awkward with his new bone structure and the weight of the deer. Jeff soon got ahead of him, and his heart rate jumped as an overwhelming scent hit him. A mixture of concern and excitement coursed through him, his instincts recognizing the primal call. Drool formed in his mouth, and his pupils dilated.

"Jake," he said softly to himself. "Must focus on Jake."

Jeff moved closer to the cave, his steps measured but purposeful. The air grew thick with Jake's pheromones, stirring something deep within Jeff. His protective nature surged to the forefront, tempered by a growing heat in his core. His groin started to ache.

"I'm coming, Jake. Just hold on," Jeff murmured, his voice low and soothing.

Jeff's breath caught in his throat as he got to the cave entrance. Jake was sitting there panting. He looked... different somehow. Vulnerable, yet achingly beautiful. Jeff's paws twitched, and he felt his balls start to ache.

"Are you okay?" he asked gently, kneeling beside Jake.

Before Jake could respond, heavy paw steps echoed through the cave. Dave appeared, his massive frame silhouetted against the dim light. He put the deer down and grunted.

"Whoa, what's the deal?" Dave called out, his usual bravado faltering as he entered the scene. "You guys okay? I feel so weird. It feels like... I don't know, game day jitters or something. But my balls. They are aching."

Dave hesitated, his eyes darting between Jeff and Jake. He reached down and saw that his cock was starting to emerge from his sheath. Jeff's was, too. Then, something dawned on his face, replaced quickly by a mix of curiosity and desire.

"Oh," Dave breathed, taking a tentative step forward. "Fuck, my cock is killing me. I feel like I need to fuck something right now. What the hell, man!"

Jake looked at them and licked his lips. His eyes were wide, and drool fell down his tongue as it hung from his muzzle.

"Guys... I need... I need," Jake panted.

Jeff looked up at Dave, and a silent communication passed between them.

"Yeah," Jeff confirmed softly. "I think you need us. Both of us."

Dave nodded, his hesitation melting away as he moved closer to join them.

"He's in heat again," Dave groaned. "Just like when we were at the lab."

Jake nodded.

"What the hell is this?" Dave growled as the chemicals in the air were driving him wild. "He's a guy. Guys don't go into heat."

Jake reached out and grabbed Jeff's arm.

"I need to be fucked. I need to be fucked right NOW!"

Jeff's arm was trembling. His cock was engorged and dripping. The urge to breed was overtaking him as well.

"Go tie him, Jeff," Dave said as he left the cave.

"Where are you going, Dave?" Jeff called out.

"I need to go for a walk. Somewhere far away from here. If I don't, you will find me shoving this knot in your ass as you breed our little guy, Jeff. I can't resist this."

"Oh!" Jeff replied as he understood.

"I'll come back in a few hours," Dave groaned as he rubbed his dripping cock. "Save some of that ass for me when I do. I expect I'm going to be feral."

Dave roared, got onto four legs, and ran into the forest. Jeff turned back, his body flush with heat. Jake took his paw and led him into their bed.

As soon as they arrived, Jake got on all fours and shoved his ass into the air, arching his back. His scent was now a pungent wave that caused Jeff to nearly lose it. Jeff mounted quickly, his cock shoving deep into Jake's ass and sliding into the new erogenous zone created there. Jake moaned as the knot swelled and tied him, and the two howled loudly as the cum began to fly.

It was an intense mating, far more primal and intimate than they had ever experienced. Soon, their minds wandered. Their human brains disengaged, and their canine ones took over. It was clear one tie would not be enough. As Jeff's large balls pulsed with every injection of sperm, he could feel how heavy they were. He needed to breed a lot more. This was going to take a while.

Dave spent several hours by the river a quarter mile from their cave. He had caught two large fish while there, competing with three large bears in the vicinity, who knew better than to challenge him. Even from this distance, Jake's occasional scent crossed his senses. Each time, his heart fluttered, and he felt his loins ache. But, he had been good at distracting himself.

As he bit down on the second fish, tearing the meat away with his enormous jaws, he heard the howls of the two for at least the tenth time carrying on the wind.

"Damn, those two are fucking like rabbits," Dave said to himself.

Dave was waist-deep in the river. The frigid cold water helped to keep his cock at bay. The fur on his body partially protected him, but he was starting to lose feeling in his legs.

An eagle cried above him, and Dave snorted. He tossed the fish onto the bank and watched as the bird swooped down, caught it, and flew off.

"You are welcome!" Dave growled as he started to make his way to shore.

When he arrived at the bank, one of the local bears he had named Tyler growled at him. Dave pulled his shoulders back and roared even louder, causing Tyler to jump and run downstream.

"Now, who's the alpha around here?" Dave said with a smile.

Dave shook his body. His fur flew back and forth, sending a spray of water out in all directions. He ran his paws through his beard and licked them clean.

"Gotta look presentable, after all," Dave said with a smirk. "It's time for big bear-wolf Dave to have some fun."

He got down on all four paws, growled loudly again, and bounded towards the cave. The scent in the air grew stronger as he approached. When he finally reached the cave entrance, it was overwhelming. It was like hitting a brick wall.

Dave's cock emerged and began to swell as he entered and headed towards their shared bed. When he reached it, he saw Jeff curled in the corner. His bone structure had altered enough that he could now reach his cock easily with his muzzle, and he was licking it and his balls clean. Jake was still on all fours, his ass in the air and dripping with cum.

Jeff turned and saw Dave approach. The big beast's arms and legs shook, and his eyes dilated. Jeff knew what he was going through. He had just tied Jake for a sixth time. He had been surprised his balls could last that long, but he felt better now, though the scent was still intoxicating.

"Your turn, Dave?"

Dave only nodded, drool falling from his mouth. He was loosing his ability to focus on anything but Jake's ass. Jeff smiled and rubbed Jake's sweaty and cum-covered fur.

"I hope you are ready for more cause big Dave's cock is at full staff."

Jake groaned. He wagged his ass in the air, and Dave lost it. He collapsed on all fours and ran his tongue over Jake's ass. The warmth and scent glands there drove him absolutely out of his mind. His face twitched and he moaned loudly.

"MINE!"

Jeff knew he needed to be elsewhere. He quickly got out of the way as Dave grabbed Jake's ass and mounted it swiftly, the two growling and howling in unison.

Jeff walked out of the cave as the sound of Dave's cock thrusting echoed in the room. At the entrance, he took a breath of fresh air. It was like he had smoked a ton of pot. His mind was swimming, and the scent in the air was so overwhelming that he almost felt sick. He saw the deer carcass at the entrance to the cave. Dave had left it there in the morning. But, he did not have the strength or will to move it. He stepped over the body and bounded into the afternoon air to recover.

More hours passed. Dave roared once more. His knot firmly wedged in Jake's ass. The bed was an absolute mess. It was covered in sweat, saliva, and so much cum it was hard for them not to slip around at times. He threw his leg into the air again to turn and tie with his mate for the seventh time. His heart raced as he sat ass to ass to Jake, and his eyes were glazed over. He had never felt so exhausted nor so turned on at the same time. He felt like he could fuck all day and all night.

Dave's arms gave out, and he fell forward on his face. Drool poured from his tongue as it fell from his mouth. He panted heavily as his cock continued to pulse inside Jake. A laugh startled him as he looked over at the entrance to the cave.

Jeff had returned and was staring down at him. He had removed the curtain of sticks and moss they had constructed to hide the entrance and let a spring wind enter the space. The cool air crossed Dave's beard, and he closed his eyes and groaned.

"Still fucking, I see," Jeff said as he crouched down on his haunches. "Is it safe to approach?"

"His ass is so nice," Dave groaned as Jeff played with the big beast's soaking-wet beard and mustache.

Dave's hair was matted. A loud pop caused Jeff to look over. Dave's knot had disengaged, and his cock was slowly sliding out of Jake's ass. A river of cum behind it. Jake fell forward. He did not even attempt to squeeze his ass shut. After all the fucking and tying he had endured, it was a gaping hole now.

Jeff laughed. He walked over and rolled Dave to the side and brought the still throbbing cock of the bear-wolf hybrid creature deep into his mouth. Dave's eyes rolled back as he groaned and put his paws on Jeff's head. Jeff moved up and down, sucking the remnants of Dave's prostatic juices out. Milking them as the knot deflated and the cock finally began to retreat into its sheath. When it did, he turned and looked at Jake.

Taking a deep breath, Jeff's body shuttered. It was like he was on drugs. He dove into Jake's ass and licked greedily - slurping up both his and Dave's cum. He could not get enough. It was not until Jake groaned from his raw ass being licked that he finally stopped.

"Had enough?" Jeff replied, panting and rock hard again.

Jake lifted his ass again.

"No! I need more!"

Jeff grinned and quickly mounted again.

As night fell, the three of them were exhausted. They had managed to take a break long enough to cook the deer for dinner, but they went right back to fucking after. Jeff and Dave took turns until their balls could give no more. Jake was an absolute mess. His body reeked of sweat, semen, and pheromones. Their bed was tattered and drenched.

"I sure hope this heat you are in does not last forever, Jake," Jeff panted heavily as he recovered from the last breeding he had given him. "Dave and I will kill ourselves trying to fuck you."

Dave laughed as his chest heaved up and down.

"Speak for yourself! I'm a young virile beast!"

Jake moaned. His ass was on fire. His hole was raw and bleeding, but he did not care. He wanted more, but he knew his body was nearing its limit.

"I want more but I don't think I can take it," Jake replied with a gasp.

"We should go," Dave replied as he pulled himself up.

"What?" Jeff replied.

"We should go," Dave said as he got on all fours and walked to the front of the cave. "Come on, Jeff."

Jeff looked confused.

"What is going on?"

"If we stay in here, we are going to keep fucking him till we tear him in two," Dave replied. "Plus, you and I both stink of sweat, spit, musk, and sex. Let's take a swim. We can sleep at the entrance to the cave where the scent is not so strong. I don't think I could sleep in here anyway with my cock throbbing all the time."

"But..." Jeff groaned - the need to stay strong in his body.

"Jeff!" Dave growled deeply and fiercely. "Come!"

Jeff gave in and nodded.

"Are you okay with this?" Jeff asked Jake.

Jake could only nod and wave his paw.

"Unless you want to mount me one more time," he gasped.

Jeff smiled and turned, but Dave growled even louder.

"NOW JEFF!"

"Okay... okay... DAD," Jeff shouted at Dave. "But, it would only take a few minutes."

Jeff's cock was swelling again.

"I mean..." Jeff said looking at Jake's hole.

Dave bared his teeth, and Jeff quickly got the message.

"Sleep well, Jake," Jeff said as he groaned and followed Dave out of the cave.

When dawn broke, Dave and Jeff opened their eyes. They had curled up beside one another a short distance from the cave. Close enough to return if needed but far enough downwind that their cocks let them sleep. As they stretched and returned to their den, they could tell there was a noticeable change in the atmosphere.

Jeff pulled back the curtain covering the entrance and walked in first. The stench of cum and sweat was pungent.

"Smells like my old locker room!" Dave replied.

"The cum, too?"

"I told you," Dave smiled. "We had some good times after games."

Jeff shook his head as the two walked over on all fours to the back where Jake was sleeping. The sheets were a crusted mess, and Jake looked horrible. His fur was tangled and ripped in places. Cuts down his side, now scabbed over, evidence of the passion from the day before. His paw was on his chest, and his cock, half out of his sheath, was crusted with cum.

"Looks like the little guy finally emptied his balls too!" Dave said with a smile.

Dave crawled softly over Jake and licked the younger beast's testicle mound and then brought his tongue up and over the protruding cock, cleaning it of its cum. Jake groaned and opened his eyes. His paws reached out and clenched as he stretched.

"Good morning!" Dave said with a grin, moving his muzzle over Jake.

"Good morning," Jake replied, kissing him.

"Do you feel better?" Jeff asked as he lay down next to them both.

"Much," Jake replied as he rubbed his fur. "I feel more like myself."

"Good," Dave replied. "I don't think Jeff could have handled another day of fucking you. Me on the other hand..."

"Bitch!" Jeff replied playfully as he shoved Dave.

Jake laughed and reached out to rub their pelts.

"I don't know what that was about, but it was amazing. I wouldn't mind it happening again, but I think my body needs to recover."

"Yeah, let's agree on that," Jeff said with a laugh. "By the way, you need a bath."

Jake howled loudly. Jeff and Dave joined him in a loud chorus. As they ended their joined call, they nuzzled each other closely with love.

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As with my other stories on Nifty, I accept and love to get constructive feedback and criticism from my readers. You can contact me at slavebear1976@gmail.com

Next: Chapter 11


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