“Wooo-hooo, Marky!”

Markus looked up from his bed and instantly howled with laughter. Aaron was standing in the open doorway bent over, pants around his ankles with his head looking through his legs. With a sharpie, on each butt cheek Aaron had drawn a (poorly made) eye in his white-tan fur, and was dangling his bottom into Markus’s room. Markus was picking at his guitar, sitting on his bed.

“Bet you can’t catch me!” Aaron mocked, wiggling his tail and rump, his balls and cock bouncing in front of his face.

“Oh yeah?!” Markus yelled, tossing his guitar to the side and jumping out of bed. With a laugh Aaron ran down the hallway, leaving his pants and underwear bunched in his brother’s doorway.

Markus ran into the living room to find his brother standing on the other side in a defensive position between the sofa and the coffee table. He had his back to Markus and was slapping his butt cheeks. Using his hands he pulled them apart and together repeatedly.

“I’m the Butt Monster!” Aaron said in a silly voice.

“Well the Butt Monster’s about to get a taste of my dick!” Markus tried to spring across the room, but Aaron simply ran to the other side of coffee table, keeping the piece of furniture between him and his brother. Now Markus was between the couch and coffee table, and Aaron was on the other side, standing on the living room rug, still slapping his butt in his brother’s direction.

Markus dove across the coffee table—a move Aaron didn’t expect. He tackled his little brother from behind and brought him to the floor, Aaron sandwiched between Markus and the living room rug. With Markus’s pelvis fully weighing down on the little coyote’s bottom, Aaron was pinned face down and couldn’t move.

“Bleh... Butt Monster’s dead,” Aaron said with his head in the rug.

With his left hand holding down Aaron’s back, Markus reached into a cargo short pocket. “I think I know something that can revive him,” Markus said, pulling out a small unmarked bottle.

Aaron knew the dangerous game he was playing. Before, back when he and his brother only did hand and mouth stuff, he could tease Markus, moon him and walk around the house naked just to frustrate him. But sometime over the past couple months they silently agreed that whenever Aaron messed with him like this, it was an open invitation for Markus to do whatever he wanted to the little coyote—as long as he could catch him. And today he caught him.

Markus unzipped his pants and fished out his cock, flaccid but twitching with anticipation. He opened the small bottle and poured some of its contents onto his hand. He kept his lube in an unmarked bottle in his pocket. Nowadays, he never knew when he might need it, and if anyone else found it he didn’t want them asking questions. He lubed up his cock, now still only half erect, and placed it between the goofily-drawn eyes on his brother’s cheeks, the tip of his dick brushing against Aaron’s tail. He hot-dogged a few times, hearing his brother’s breath underneath grow harder each thrust, until he was fully boned up.

“Any last words, Butt Monster?” Markus asked, bringing the head of his dick to Aaron’s pink little pucker.

“I told you, Marky, he’s already dead.”

“Oh, yeah,” Markus said. And with that he plunged it in, but slowly at first like he had promised his brother.

It had already been several months since Aaron first started allowing Markus to fuck him. Both of them knew that day when they first tried anal—for real this time—is one they would never forget. It was slow, passionate, and intense, something that definitely served as a milestone in their familial relationship. Aaron hadn’t realized until that day just how much, and he means how much, Markus loved him. He put his tongue everywhere over the coyote pup’s body, in his own mouth, his feet, and just what might be Markus’s favorite part of Aaron’s body, his butt.

The total trust between the two was unbreakable. Coinciding with the start of the new school year, Aaron started allowing Markus do whatever he desired to the little canine’s body. They were getting adventurous, and risky in their escapades. Markus fingering and blowing Aaron in a movie theater.  On a once-a-year camping trip with their mom, the two sharing a tent—and then a sleeping bag. The two coyotes offering to go pick up some pizza for a pool party at their house, only to park on the side of the road and fuck in the back seat. Now Aaron, his 12th birthday just around the corner, advanced on Markus just as much as the reverse, and since Miranda gave her oldest son his own car they had more freedom than ever.

That day it was a quick bang. It was already 5:30, and their mother could be home from work any minute. She usually worked late, but once in a blue moon would show up unexpectedly early, the sound of her van pulling in the driveway meaning Markus would have to pull out of Aaron, the two of them acting as nonchalant as possible when she walked through the door. Luckily she didn’t get home early that day, and Markus came inside of his brother, finishing him off with his mouth afterward right there in the living room.

Markus and Aaron found things out about each other that they know no one else ever would, or could. They knew each others’ bodies and personalities intimately, and any bit of change in their lives was always noticeable. Markus could almost see his little brother growing in front of him, every part of his body. He noticed every once in a while when he was sucking Aaron’s dick, it would go a little further back into his throat, and a few more drops of cum would shoot out each time. But the flavor didn’t change, it always tasted sweet, and Markus had told his brother that so many times that after a blowjob Aaron would often ask, “How sweet is it today, Marky?”

Winter break was almost upon them, and it was Markus’s last year in high school. Aaron could sense Markus growing anxious about something, and it seemed the only time his older brother wasn’t worrying about his future was when they were having sex. So Aaron tried to console his brother, doing his best to keep up with the older coyote’s lust, letting him touch him, suck him, and fuck him when and wherever Markus wanted. Markus, of course, also picked up on many things in Aaron’s life.

They were sitting at their dinner table, eating some Chinese food their mother brought home. Aaron got frustrated and snapped his chopsticks in half, so he was eating his noodles with a fork. He had his tablet on the table with his elementary school class photo open. He was pointing at the screen to different students, who was friends with, who he didn’t know, etc.

“This is Easton,” he said, pointing a claw at a rabbit cub, “he’s one of the most popular kids in school. He’s also my friend. This is Cy, he’s the one who got kicked out school because he pulled the fire alarm, remember?”

“Yeah, that’s the glitter kid, right?” Markus asked with a mouth full of rice.

“Yeah. Oh, and this is Lilian.” He used his fingers to zoom in on a little polar bear girl. “But everyone calls her Lilly.”

“And how do you know Lilly?” their mother asked.

Aaron blushed a little and looked down at his plate. “She’s just a friend. She’s new this year, and I don’t want her to have no friends.”

Miranda smiled. “Just a friend, huh?”

Aaron made a goofy face, still blushing. “Yeah, just a friend.”

Markus felt a pit gather in his stomach when he saw his little brother’s reaction.

“Do you like Lilly?” Markus asked.

“Yeah, I said she’s my friend.”

“I mean do you like her?”

Miranda tilted her head at her oldest son. “Well that was forward Markus,” she muttered.

Aaron just shyly smiled and continued slurping down his noodles.

“So how’s your, ah, car, Markus?” their mother asked.

“Fine.” Markus replied. He said nothing else.

“Fine? I get you a new sedan and it’s just fine?”

“Well it’s not new. It’s already got 200,000 miles on it, and one of the windows in the back can’t roll down, and the battery keeps dying.” Markus rolled his eyes. “So yeah. Just fine.”

“Well I’m sorry I couldn’t afford to buy you a Ferrari,” she said sarcastically. That got no reaction out of her son, so she dropped it. The rest of the meal was eaten in relative silence, Markus throwing away his fortune cookie before even opening it.

Later that night, after their mother went to bed, Markus walked into his brother’s room. Aaron groggily opened his eyes and sat up.

“I wasn’t sleeping, I swear,” he said, rubbing his eyes in the dark. “So what do you wanna do tonight?”

“I wanna ask you something,” Markus said, sitting at the edge of the bed. It was winter, so they both were wearing cotton pajamas.

This was a first. Markus usually liked to talk after sex. “Okay,” Aaron said, his ears perking up.

“Do you like girls?” Markus asked.

Aaron thought about it for a second, but didn’t know how to answer. “Whaddya mean?”

“I mean, like that girl Lilly at your school. Could you be her boyfriend?”

“Well, maybe,” Aaron answered. He didn’t know where Markus was going with this.

“So you could have sex with her if you and she wanted?” Markus asked.

Aaron had to think hard again. He had never really thought about something like this before. “I... I don’t know...”

“What I want to ask is, are you gay? Like me?” Markus asked. He knew he was prodding deep with a question like that, but Aaron should be getting old enough to answer it. He could remember back when he was Aaron’s age, and discovering that he only liked other males.

Gay was a word Markus taught Aaron months ago, but he only ever used to describe himself. “I don’t think I’m gay. I don’t wanna have sex with other boys.”

Markus suddenly felt uncomfortable. The two of them had gotten so close over the past year, holding no secrets from one another. It was the first time he felt unconnected from Aaron since they first started experimenting.

“So you’re not gay.”

“Yeah, I guess I’m not.”

“Okay. That’s all I wanted to ask.” Markus nodded and stood up. “Well, goodnight little bro.”

“Wait, you don’t wanna do anything tonight?”

“Nah, it’s okay. Let’s just go to sleep. I’ll see you in the morning.” He turned to head out the room.

“Can I ask you something?” Aaron said. Markus looked back at him. “Do you have sex with other guys?” Markus shook his head. “But you want to. Why haven’t you told anyone you’re gay yet?” 

Markus paused, but he didn’t answer. He opened the door and said, “Goodnight,” and left to go back to his room.

The rest of that week, Markus made no moves on his younger brother. It was an unspoken rule that whenever one coyote brought the other to orgasm, the other also should cum. But that week, Aaron gave his brother a hand job and a blow job, the latter of which Markus couldn’t even finish. His excuse was that he had just masturbated, but Aaron could tell something was different. Even slapping his bare, fuzzy butt only brought a weak laugh out of Markus.

They came home from school that Friday, Markus picking Aaron up at school in his sedan. When they got home, Aaron started zooming around the house, making airplane noises. Markus wordlessly went to the bathroom and closed the door. Aaron ran down the hallway, hearing the sound of his brother peeing into the toilet. Since the weather was so cold now, Markus liked to take a warm shower when he got home from school. Aaron smiled devilishly as he got an idea. He ran to his room, tore off his clothes, and jogged naked across the hall back to the bathroom door. He creaked it open, seeing his brother just finishing peeing. Aaron walked in and closed the bathroom door behind him.

Markus looked over at his brother. He had gotten at least an inch or two taller in the past year, and lost some fat, but still had a little bit of a tubby belly. Markus smiled, but a tired smile, not the horny, wry smile Aaron had become so accustomed to.

“Hey, what are you doing?” he said.

Aaron brought his head and left shoulder together, and crossed his legs making jet his dick and balls a little forward. It was a funny pose that Markus had to admit was also kind of cute and sexy.

“Can I take a shower with you?” Aaron asked. That was sure to get Markus interested again.

But Markus flushed the toilet and put his dick back in his pants, a hesitant look on his face. “But you’re not gay,” he said.

“What?” Aaron said.

“I mean, you said you don’t want to have sex with other guys. You’re not gay.”

Aaron was confused. Sometimes adults could see things so black and white. “But that doesn’t matter. I love you and wanna make you happy.” He stepped forward until he was in front of his brother. “And I like it when you and me have fun together.” He put his hands on the waist of Markus’s black jeans. “So can we have sex? Pleeeaase?”

Markus smiled again, but this time, definitely not tired. He nodded, and that’s all it took for Aaron to go at it. At the same time Markus took off his shirt and beanie, Aaron pulled down his brother’s jeans. He took his shoes off at the door, so now all he had on was his red boxers and long socks. Aaron got on all fours and pulled Markus’s socks off his paws using his teeth, growling like a little vicious animal. Markus couldn’t control his smile at how adorable it was.

With only one more layer to go, Aaron bounced back up and yanked down his brother’s boxers, drinking in his sibling’s body. Markus had also got a little taller in the past year, but not as much as Aaron. He was still skinny, with a flat ass, but a nice cock and hefty pair of balls that always got Aaron’s attention. One time, Markus was lying bottomless in his bed listening to an album, with Aaron by his side, just staring mesmerized at his brother’s matured genitals.

Markus pulled open the shower curtain and turned on the water. The two of them, now nude, rubbed and grinded on each other until the water was warm, and stepped into the tub, both fully torqued. The ground and air was rather cold, so the warm water was a bit of a shock.

While Aaron stood at the front of the shower getting himself wet, Markus pumped a handful of body-fur shampoo into his paws. Starting at his brother’s shoulders, Markus worked his way all over the little coyote’s body, down his arms, across the back, and under the armpits, which made Aaron mad with giggles. With another pump of shampoo Markus also got the lower back, the tail and, of course, the butt, which he spent a gratuitous amount of time on. Aaron moaned each time Markus stuck a soapy hand between the cheeks. Then he worked down each leg, also bringing the little coyote’s paws backward to get a proper wash, Aaron giggling again at his sensitive paw pads.

It was time for the front side. Markus spun his little brother around so he was facing away from the shower head. He lathered up the pup’s head with head-fur specific shampoo and rinsed it, using the suds to clean the chest area. Markus dropped to his knees, eye-level with Aaron’s genitals. His balls had definitely increased in size, his sack just noticeably bigger, but his penis didn’t seem to grow at all—that is, until it got hard, which it was very much at that point, sticking straight outward horizontally. Markus’s mouth watered, feeling proud at his brother’s manhood. After one slow lick from the base to the tip, he stuck the whole thing in his mouth.

His hands still sported some soap, which he used to lather Aaron’s furry balls. Markus’s own sack had much thicker, almost wiry fur, but his brother’s was still unbelievably soft. Markus tugged at the scrotum. Aaron moaned, his cock and balls getting his brother’s attention that they missed so much the last week.

Aaron felt the orgasm building. Markus’s soapy left paw was busy working the little sack, while his right rested on Aaron’s waist. Aaron used his hand to guide Markus’s paw backward, placing it upon his cheek. Markus looked up at Aaron and, with the cock still in his mouth, smiled, and gave Aaron’s ass a firm jiggle.

The pup wasn’t far from cumming now. Markus rapidly bobbed his head, switching between pushing the whole cock in his mouth, to bringing it out to just the glans, where he would focus his tongue on the sensitive area under the head. The room was filled with the sound of running water, Markus slapping his mouth against the cock, and Aaron’s moan growing in volume.

Finally Markus bobbed the cock entirely out of his mouth, then using the remaining soap from his left hand gripped the shaft. He grabbed it tight and jerked it as fast as he could, his other hand clenching Aaron’s tightened ass. The soap acted as a lube, making the already-slippery cock much easier to milk. Aaron’s legs were going crazy, twitching this way and that. He was about to cum any minute.

Markus’s muzzle was open wide, his tongue hanging out, cupped as to catch his brother’s delicious seed. Aaron relaxed—almost falling over in the shower—and came. Markus milked all he could, catching most if not all the minuscule spurts on his tongue. Not that there was a ton from Aaron, but it was enough for Markus to get a perfect taste of his brother, leaving him wishing there was more. When it was clear that Aaron had no more to cum, Markus closed his mouth and swallowed the sweetness, still jerking the dick to keep Aaron’s orgasm going.

When Aaron was finished, panting in the hot shower air, Markus stood up and said, “Now, clean me.” They switched places so the older coyote was standing in front of the shower head facing it, and the two of them pumped some shampoo into their hands. Aaron was too short to reach above his brother’s chest, so he worked on the bigger coyote’s lower backside as Markus washed his own head and shoulders. Aaron pulled shampoo down Markus’s tail, lathering it up, then using a “wax on, wax off” technique washed his cheeks. His paws were small, but was so was Markus’s butt, so it didn’t take much to sink a hand in and clean the whole area thoroughly.

Undoubtedly, whenever they had sex Markus paid more attention to Aaron’s ass than Aaron did to Markus’s. While Markus now fucked Aaron at least weekly, Aaron had never suck more than a finger or two up Markus’s ass. Markus always groaned in pleasure, though, like he was at that moment.

Markus turned around, and the two of them worked on his front side, Markus’s whole body covered in suds. Aaron used one paw to clean the top of his brothers relatively large sack, while the other was between the legs, cleaning the gooch area, every once in a while sinking backward and making contact with Markus’s pucker. He finally turned his attention to big coyote’s cock, which had been rock hard and pointing straight up this entire time.

Aaron did a couple soapy strokes of the cock when Markus said, “Wait, I don’t wanna cum in here yet.” Aaron stopped and looked up, the taller body of his brother blocking the shower stream. “Here, follow me.”

Markus rinsed off the suds and turned off the shower, stepping out. Aaron, curious, followed suit, and the two of them toweled each other off. When dry, they wrapped their towels around their waists and Markus led his brother back to his room. Markus bent over and started fumbling for something under his bed, his damp tail and skinny butt visible from under his towel.

“So what do you want to do?” Aaron asked.

Markus finally found what he was looking for, and pulled out a piece of clothing.

“What’s that?” Aaron asked.

How should he put it? “I think it would be hot if... you put on a skirt.”

“Bay your pardon?” he said. It was a new phrase he had just learned recently, and he still had yet to say it correctly. 

Markus spread the elastic waistband of the skirt, showing the purple and black stripped pattern. “It’d be sexy if you were wearing a skirt while I fucked you,” Markus said.

“What, like a girl?” Aaron asked. “Why? I’m not a girl.”

“Uh, well because...” Markus hesitated. He could tell Aaron wasn’t being receptive of the idea. Almost everything Markus suggested to Aaron the little coyote happily obliged, but this was the first time Aaron genuinely did not seem interested.

“Umm...” Aaron said, worried that he might have disappointed his brother. But it was a pretty weird request, after all.

“No! It’s okay. We don’t have to do it if you don’t want to.” Markus tossed the piece of clothing back under his bed and sat down. The two of them worried that the tension might of have ruined the mood.

Aaron quickly thought of something and walked up to his brother. “I’ve got an idea,” he said sensually, kneeling in front Markus. Markus was sitting on his bed, his feet on the floor, his erection still visible through his towel. Aaron stuck his head up under the towel out of Markus’s view, bringing his nose to his brother’s balls. The air in there was damp and soapy, but Aaron could clearly smell his brother’s musk.

Aaron started licking his balls, just bringing his tongue across the sack, which was loose from the hot shower. Markus groaned and leaned his elbows back onto his bed. With both paws under the towel now, Aaron played with his brother’s nuts, sucking on the furry sack, just barely grazing his teeth across the scrotum. He heard his brother let out a sharp breath. With a good amount of it in his mouth, Aaron did a little nip on the scrotum, the testicles still outside his muzzle. His brother let out a sharper breath and with a chuckle said, “Oh, careful.” Aaron popped a ball in his mouth, cautiously tonguing it. Markus’s erection pushed hard against the towel, a good amount of precum damping the already-wet cloth.

Still sucking the balls, Aaron used a paw to begin stroking the cock. He could feel his brother’s heartbeat along the shaft, the testicles moving around in the sack, getting ready to shoot his seed. Aaron stroked fast, dropping his muzzle vertically down along the sack, licking all the way. Markus was leaning almost entirely back on his bed now, his tail under him, his knees bent over the edge on either side of his little brother’s head.

Aaron used his thumb to stroke right under the cock’s head, utilizing the precum at the tip to lube the area and make it more sensitive. His nose was now under the the sack, a ball resting on each side of his snout in front of his eyes. Then, Aaron stuck his tongue out, pressing it against Markus’s tail hole. He’d never done that before, but Markus had done it to himself so many times that Aaron thought he knew what to do. With his slobbery mouth he lapped his tongue and lips against Markus’s ass. Markus was so tight and Aaron’s tongue so short that he couldn’t sink it in very far, so he stayed mostly on the outside, going in circles around his pucker. He could feel his brother’s heartbeat pound in the ring and the veins of his cock, and from the sounds he was making knew Markus had to be close.

“Oh, god yes—Aaron!”

Markus suddenly sat up on the bed, his arms straightened behind him. The movement forward caused Aaron to lose contact with Markus’s tail hole, and his muzzle was buried under his brother’s sack. He still had a paw firmly around the cock, though, and was stroking when he felt it begin twitching and pulsating. He was pulling the cock forward to his own head just enough that the dick hole wasn’t pressed up against the towel, and the cum freely shot onto his muzzle. The warm drops landed on his snout, his forehead, his head fur, even one in his eye. The musky scent under the towel tripled, Aaron furiously pulling at the cock for several seconds. When Markus’s groans quieted down, Aaron slowed and stroke at the underside of the cock, pulling at the tube, getting the last squirts of cum out.

When his brother was finished, Aaron emerged from under the towel. His face was a mess, completely covered in cum ear to chin. Markus was impressed, even under the towel it didn’t seem like his brother missed a single shot. Aaron licked the side of his snout, getting a dab of jizz on his tongue. Markus saw the inherent slight disgust as the taste hit the little coyote, but he still appreciated the gesture.

“Yeah, I know, yucky,” Markus said, getting his voice back as the orgasm faded. Aaron rested his chin on Markus’s crotch, a bit of cum dripping onto the towel. He looked at his sibling with half-closed eyes.

“Are we cool?” Aaron asked, his lower jaw on Markus’s still-hard cock.

Despite how mature the kid could be, sometimes Markus forgot he was still just a pup. The little coyote was always eager to please his older brother, Markus didn’t need to push him.

“Yeah. We never weren’t,” Markus replied, stroking his brother’s ears, getting some of his own cum on his fingers.

Markus was going to invite him to cuddle when Aaron said, “Good. Cause I need to get back in the shower!”