Justyn felt the color draining from his face as his father walked toward the stairs and casually walked up. What had he meant by 'what he /needs/ to do'? The older wolf splayed his ears and muttered. "Turn around and bend over." The older brother instructed while he picked the nozzle up from the floor and turned the valve on the shower pipe.
	Justyn wasn't sure about this and hesitantly turned his back to his brother and the shower, standing with the toilet just behind him. He slowly bent over raised his tail, waiting for his brother to press the hose into him as he had seen his brother take it. Justyn was surprised at the contact of the cold dry tip of the chromed hose. "Ah! It's cold!" he exclaimed, standing up and taking a step forward, away from the shower. "Get back here and hold still, it's always cold, you'll get used to it."
	The younger wolf reluctantly shuffled back into place and bent over again, frowning as he watched behind him. The older wolf held the probe in his paw for a few seconds. "If it's too cold, you can warm it up with your hands." His brother caught his tail and lifted it up, then pushed the cold nozzle against his tight tailhole. "Oww! that hurts.." the cub whined as the probe slowly pressed inside. "Don't be a runt." his brother sneered as he turned the cold water on slowly. "Now stand up and squeeze your butt."
	The young wolf was startled by an invasion of cold in his anus, which quickly built to a cramping pressure. "ow, ow, ow.. it's cold!" The younger boy started to dance in place as his butt started to leak water. Marcus yanked Justyns tail while reaching for the tube and pressed it further inside his brothers tailhole. "Stoppit, clench your butt cheeks together and hold it in." the older commanded. The younger boy could feel the cold filling his anus and building pressure rapidly. The temperature of the water further amplified the problem, making it feel like he had to dump right then. "I caan't!" he whined, then quickly crouched down over the toilet to let a small squirt of water stream into the hole in the floor. "Ugh... that feels really weird."
	Marcus shook his head and rolled his eyes. He knew that after several years of this, his brother wouldn't even think twice about doing it... heck, he might even enjoy it so much that he'd do it just for fun.  The older wolf smirked and adjusted the valves, the water flowing over his hand as he adjusted the temperature. "Is it all out?" he asked, eliciting a nod from his brother. "Ok, stand up, you need another one, that wasn't nearly deep enough." Justyn gulped at the thought of 'deeper'.. how much was /that/ going to hurt? He bent over obediently though, this time ready for the cold probe to invade him again. To his surprise, the probe was warm this time, almost hot.
	The heat made his tailhole instantly relax and allow the tube inside. "Ok, here it comes." Marcus turned the valve and sent water down the tube to flood his brothers' body again, this time faster than before. The younger wolf gasped in surprise as he felt the hot swelling of water inside him. The heat from the water, almost too hot, but not quite, suddenly melted all the tension in the boys bowels, allowing the water to freely flow into his gut. Justyn panted as the water poured into him, the boy struggled to hold it inside, his sphincter threatening to let it all go at any moment. "Squeeze your buns!" his brother repeated. With an anxious nod, Justyn clenched his butt, keeping the water inside as he could feel the heat burst past another tight spot deeper inside him. "There so much.. I can't hold it, I can't!" he grimaced and whined as his legs started to shake from effort.
	Either his big brother pulled the tube from him, followed closely by a torrent of brown water, or the water pushed the tube out, he wasn't sure... as he knelt down over the toilet as it seemed like all of his innards suddenly started rushing out of him. "Whoa... that feels so weird." he groaned, feeling the muscles inside him start to move the water towards the end. The young boy gasped and felt another rush of water surge from him, taking chunks of waste with it. "I am never using the upstairs toilet again!" he murred, sinking into the pleasure of feeling his gut washed clean. "One more fill... just to wash the rest out." his brother lifted the probe towards him. "You push it inside this time." The younger boy nodded and took the hose.
	He squatted and reached between his legs to gently push it up inside him. Once it was in place, he stood up and clenched his tail down over the tube. His brother stood back and let him do it to himself this time. "Turn around, open the diversion valve slowly." The older wolf pointed to the valve that changed the water direction. Justyn carefully twisted the nob and gasp as he felt the water surge inside him. "It helps a lot to get the right temperature of water. Don't make it too hot, or you can burn yourself on the inside." Justyn leaned back and groaned as the water slowly filled his gut again, the boy now understanding how his big brother felt earlier while he was watching. The water soon demanded to exit, and the younger wolf squatted down as the tube slithered out of his gut and a clear waterfall fell from his body. "Ahh..." he moaned.
	His eyes were closed when he heard a soft thud beside him. "Wash off when you're empty.." Justyn looked over and saw a bar of soap laying on the concrete beside him. Marcus was already clean, but had gotten wet again. He walked over to the towel rack and dried himself off while his little brother recovered from the deluge.  Marcus was well dried and sitting on the bottom step by the time Justyn had rinsed and shut off the water. The older brother watched his sibling towel off, the teenager ignoring his shaft as it throbbed between his legs and dripped pre on the step below. Marcus got up as Justyn hung his towel up, and pulled a tube off the top of a bookshelf. He flipped the lid open and squirted a drop of clear jelly on his finger then set it back up out of sight. "What is that?" Justyn asked, walking towards the stairs. Marcus walked up to him and pulled the boys tail up, slipping his hand under and spreading the gel on his hole. "It'll help it feel better." His older brother seemed to have a slight protective air about him, very different from his usual dis-interest.
	A shiver ran up Justyns back as his butt cheeks squished the gel against each other and slid in odd ways. "Um.. ok." He nodded and started climbing the stairs. The Alpha was waiting in the living room, lounging in his huge recliner, watching a TV show. Justyn wasn't sure what to do and glanced slightly back to his older brother for input. Marcus placed his hands on Justyns shoulders and whispered in his ear before pushing him forward. "Go sit in his lap." The boy nodded and walked over to his dad's chair, climbing up onto the large wolfs legs, and plopping into the warm nest in the middle. The boy smiled as his father wrapped his arms around him and gave him a hug. It was always safe in the strong arms of his father, and it relaxed him to feel the twitching of the Alphas muscles against his back. Justyn grinned, finally old enough to unseat his big brother and assume the spot in his dads lap.
	The boy didn't have to move much to get comfortable, his smaller tail-end framed nicely between the massive legs. Justyn swept his tail to the side to keep from kinking it beneath him, and laid back to watch the show. The boy felt the warm soft push of his fathers' sheath nestled under his tail. He wondered if his father could feel the wet gel that coated his but cheeks, but as he shuffled to try to hide it, his father's arms closed around him and held him still. "Calm down... stop jumping around." father rumbled. With a slight squeak Justyn stopped and laid back to watch the show. Something had changed under him though, and there was something slippery in the middle of the soft sheath fuzz of his father.
	The boy pursed his tailhole to try to figure out what it was, not wanting to move again, but there wasn't much he could figure out, except that whatever it was, was getting bigger and starting to press against his lubed hole. Justyn then realized that it was his father's penis growing out of his sheath; like he had seen his brothers do so many times. "There you go, just hold still and this won't hurt." Justyn could feel the tip slowly press against his hole until he couldn't hold it closed the rod slipped past it into the boy's body. The boy groaned as the shaft slowly sank inside his anus, much like the enema probe downstairs, though this was softer, warmer, and felt better to him. The boy moaned as the shaft filled his anus "Dad.. it's inside me!" he whispered. The alpha nodded and covered the boys’ mouth. "Shhh..  I know, its ok." The boy glanced over to his brother, still standing near the kitchen. Marcus was watching him, his shaft fully erect and knot swollen.
	The older boy's shaft ached for attention while his tailhole was being starved from its nightly meal. His tail flicked restlessly as he watched, obviously wanting to be in the seat as well, filled with the large shaft of his father. Justyn wasn't sure how much of his father's penis had pushed inside of him, but his tailhole started to press against something very big, and it wasn't quite ready to stretch that far. The boy grunted and tried to push himself up on the pole invading his body, only to sink down and press against that swelling again. He was almost about to ask his dad about it, when the Alpha slowly started to rock his pelvis forward.
	The bulge started to push against the boys' tailhole, the large spongey feature slowly changed shape to slide partially in. The pressure on his tailhole built with every second, the lube made it impossible to resist and assisted the bulge as it stretched that untrained opening. Justyn wasn't sure he could take much more; the pressure against his tailhole was almost too much to bear. Suddenly, he realized that it was starting to sink inside him, moving faster as more of the bulge pushed inside to fill his anus. With a tactile slurp, the bulge pulled the boy down onto the shaft, swelling inside his young body and locking him into place.  Marcus saw the expression on his younger brother's face and knew exactly what had happened. The older wolf stood watching his brother move and squirm as his body was filled with the Alpha's knot. The teen's shaft throbbed and dripped, showing how much he desired to be part of the union. The Alpha sighed and smiled. He held the boy to his body, careful to not hurt his youngest as he started to gently rock his hips under the boy.  Justyn had hardly had a chance to get comfortable with an anus full of his father's penis when the large male started to move.
	The shaft pressed up deeper into his body, then pulled back against the ring to test its strength. Justyn let out a groan as his body's limits were tested. The alpha rocked forward again, pressing deep inside the boy, and then pulling back.  Now fully inside, the Alphas knot grew to fill the cavity, the boy was unable to exercise his will on his tailhole anymore, and somehow the feeling of being full of a throbbing shaft started to give him a buzzing sensation that slowly grew more intense. As the motions got more frequent the boy surrendered his body to the Alphas use, his colon loosened and quickly accepted the internal massage. Justyn was barely aware of the whine that betrayed his brothers pent up longing, but the Alpha caught it and glared at the boy. "Get to your room." he growled. The older teen swallowed and nodded, turning and walking down the hall, out of sight. The alpha sighed and nipped the young boys ear gently, the thick shaft inside the boy pressed deeper into him yet again. That time, the motion didn't stop. The Alpha continued on, using his son for his pleasure, while the cub panted in his lap, every muscle relaxed and eyes shut as his world was flooded with new pleasures he had never known until now.
	The Alpha didn't have far to go before his breathing started to become labored and strained. The young wolf could feel his colon straining with the size of his father knot inside him, pressing on a sensitive spot that was just about to cramp up. In what he thought was his body starting to pee, the boys cock suddenly erupted with tiny spurts of clear fluid. The young boy cried out with surprise and concern as the feelings washed through his bowels. The pain soon turned into waves of pleasure as his body spasmed around his fathers’ shaft. Suddenly, there was a firm throb as his father squeezed his arms around the boy. He could feel warmth starting to spread inside his gut, the sporadic thrusts of his father pushing that warmth deeper into his body. The feeling of his fathers’ cock pushing seed into his body was one of the most wonderful feelings he had ever felt. His father soon slowed to a halt and held the boy against him, gently petting his head.
	Justyn wasn't sure how much time had passed, but he was awoken by the Alpha nudging him gently. "Time for bed." he murred gently, allowing the boy to take his time. The cub soon realized that the Alphas shaft had slid out of his body while he slept and disappeared back into that large fuzzy sheath. Carefully, he crawled off his fathers’ lap, then walked towards the hall. As he passed his brothers open doorway, he heard a soft whimper from inside. He paused to look in, and saw his older brother laying curled up on the bed, with his back to the door. Justyn quietly padded into the room "Marc?" he whispered. His brother jolted, looking over to where his brother stood. "Are you ok?" he murred. Marcus sniffed and nodded. "I'm fine.. I just need something inside my tailhole." he groaned. Justin wasn't sure what to do about that. His penis was too small to do anything like his fathers’ was able to do, but it was worth the shot. "What about mine?" he asked his brother.  Marcus rolled over to his back, his penis still jutting out in full erection as he looked at his brother. "I don't think you can yet... I could fill you up like dad can though." The older boys’ eyes looked over the dark figure of his brother and stopped at the kids hands.
	"Come here." Marcus murred. He pulled the blankets flat on his bed, then leaned over to pull another tube of lube from his nightstand. "I think your hands might work."  The younger wolf was puzzled and slightly shocked. His hands? But what was he going to do with them? He obediently nodded and walked up to the bed. In the effort to crawl onto the bed, the boys tailhole just about lost control, and threatened to release the load of seed his father had planted deep inside him. "Hold out your hand." His brother commanded. The younger wolf nodded and held out his hand, palm up. Marcus squeezed the tube slowly and left a decent dollop of lube on the boys palm. Justyn brought it closer to inspect the lube as his brother moved around beside him, when he looked up, his brother was kneeling on the bed with his tail raised in his direction. "Spread it over my hole." Marcus instructed.
	Justyn hesitantly placed his palm against his brothers’ tailhole, the cold lube squished between the two. "Like that?" he asked. The older brother nodded, then leaned back slightly. "Now, put a finger in." he instructed. The boy frowned and hesitated, then curiosity got the better of him. He moved his index finger to the middle of his brothers’ tailhole and gently pressed in. The orifice was rather loose to his small finger, and it sank inside without any difficulty.  Justyn could tell, from the sound of his brothers’ moan and the jump of his shaft, that his brother really enjoyed even that small feeling. This encouraged him to go further, and without asking, he decided to press a couple more fingers inside. The insides of his brothers’ tailhole were hot and soft, gently sliding around the boys fingers as they explored the loosening sphincter. Marcus breathed in deeply, then sighed. "Put some more fingers in.." he murred. Justyn grimaced. "All my fingers /are/ inside." he replied. His brothers’ ears flicked back as he shuffled slightly. "Then use your whole hand.." he panted, "I need more inside me."  Justyn nodded and carefully pressed his hand deeper into his brothers’ tailhole.
	The ring easily expanded around his palm, and after tucking his thumb in, the boys hand sank inside his brothers body, just like Alphas knot had slid up inside him. Justyn was disturbed out of his thoughts as his brother groaned in pleasure.  "That's it.. deeper." he murred. Justyn couldn't believe it as his entire forearm slowly slid deep into his brothers’ body. The feeling was amazing. The tube of his bothers colon became a muscular sleeve for his arm, slowly kneading over it as each wave of muscle contractions met his fingers, moved over his hand and up his arm. The boy could feel other organs inside his brother as they moved around against his intruding arm. Suddenly his bother clenched his tailhole around the boys elbow and began to roll onto his back, the teens cock now waving in front of the youngers face. "Now suck on me." Marcus murred, spreading his legs around his brother and letting his drooling cock throb in his face. Justyn had regularly suckled on his brothers’ penis before, and took the shaft down his throat without question.
	His older brother groaned in pleasure as his penis was engulfed in the wet heat of Justyns mouth. The boy started to gently bob on his brothers’ shaft, the length of it already sweet with the collection of his brothers leaked pre. With his attention turned towards his brothers’ penis, Justyn only used his occupied arm for balance, and leverage. Marcus gasped and clenched his tailhole around his brothers’ arm, his hips starting to buck against his mouth. Following the lead, Justyn sped up his pace, though he was not quite sure what to do with his arm deep inside his brother. Fortunately, it was already doing what Marcus needed. The size of his brothers’ arm was just enough to rub against the teens prostate, and as the boy moved to pleasure the penis, the arm quickly brought the teen to orgasm. Justyn murred with delight as he drank his brothers semen, though to his surprise, the tailhole clenched around his arm at the same time, almost painfully so.
	Justyn kept suckling on his brothers’ shaft, until it was completely spent of its load. He knew there wasn't any more he could get out of it, and his brother had told him time and time again how sensitive it got right after orgasm. Carefully, the boy relaxed between his brothers legs and closed his eyes, lips pressed against sheath, and arm trapped halfway inside his brothers’ body.