“Okay, Largo, pay attention. T-this is important,” Gordie frowned as he laid on the floor of Largo’s dorm. Trophies gleamed on a shelf, an old deflated volleyball lay in the corner with a signature and various athletic posters lined the walls, all a perfect reflection of the luxray’s personality and interests. The other half of the dorm was decorated to reflect Largo’s roommate Scourge, who happened to be the short, chubby granbull’s bully. Luckily the houndoom would be away for a while, leaving the purple canine with the much nicer feline. Surrounding them were various textbooks, notecards, and a whiteboard. “If the demand curve shifts and the supply curve remains…c-constant…” Gordie trailed off. “…Largo?” Largo lifted his head and blinked. “Huh? Sorry, Gords. What was that about curves.” While Gordie was laying belly-down on the floor, nude from the waist down. As he tried to explain the concept, Largo was preoccupied with running his tongue along the chubby canine’s tailhole, having the plump smooth furred cheeks parted. Gordie sighed, his ears folding back. “Demand curves, Largo. Economics, remember? The exam is tomorrow.” He lifted up the diagram scribbled on the whiteboard. “See? Here’s the initial equilibrium point. Now, when demand increases..." He meticulously explained the concept, drawing arrows and muttering about market forces. Largo, however, was more interested in the bulldog pokemon’s butt. He had two handfuls of the large, doughy rear and played with it, mesmerized, as Gordie painstakingly walked him through the possible scenarios. "So, the price goes up, and the quantity also increases. Got it?" Gordie finished, hoping that Largo at least listened while playing with his ass this time. "Yeah, yeah, got it. Price goes up…" Largo repeated. Gordie wasn't convinced. "But why does the price go up, Largo? That's the key. It's not just magic, it's about supply and demand." "Speaking of supply and demand... Is your butt so big because of the demand for it?" Gordie groaned. "Largo! We're talking about economics!" "I know, I know," Largo said while parting the canine’s cheeks again. "But you gotta admit, you’ve got a really impressive demand curve. Everyone wants a piece of it." He grinned and pushed his head down again, tracing his slightly rough tongue over the soft pink hole. Gordie shivered from the feeling but then shook his head. Just three hours earlier Largo had begged him to come over, desperately needing some last-minute tutoring. "Okay, look, let's try this again. Imagine I’m- Aaahh! …I’m s-selling lemonade. I usually sell 10 cups, right? Now, s-suddenly, everyone wants lemonade because it's super hot outside right now. What happens…mmrph…to the price?" Largo lifted his head and tapped his chin thoughtfully. "Okay, okay... more people want lemonade, so you can charge more because you’re the only one selling it, right?" Gordie's ears perked up again. "Exactly! See? You're getting it! Now, what if someone else starts selling lemonade too?" Largo smirked. "Then you’re in trouble. Competition means more lemonade and too much can make the price go down. Basic economics, Gords." “Oh now you get it…” Gordie muttered. "Okay, progress!” he said louder. “One more question. If the government imposes a price ceiling on lemonade..." ”I think I’ve got the concept down. And that’s the last lesson, right?” Largo asked. ”Yeah, we’re done here,” Gordie said, letting out a sigh of relief. ”Well I wouldn’t say done,” Largo said with a chuckle. “I was just getting started back here.” The dark colored electric-type pushed his head in between the fat, warm cheeks again, taking a moment to breathe in the musk that remained after all of his licking, a delectable scent that made him hum before his tongue slid out again. Largo didn’t go slow when his tongue started moving again: making circle movements that were teasing Gordie more than anything else, making use of his tongue’s texture to send waves and tingles through Gordie, his smirk persisting as he heard the fairy-type’s louder moans. Keeping it up, Largo’s tongue slid to the center, lapping over the rim as a whole, making it wink in reaction. It was another year at college; fall had come but the summer’s heat still lingered and its effects were present under Gordie’s tail. He was just sweaty enough to give the feline something to taste and huff. Going faster, Largo leaned in, pushing against the rim to make it open up. Finally pushing his tongue past the rim, Gordie yipped from the pleasure that came and it got better from the way that Largo started to lick right away, not pausing for a second to feel the snugness of the passage. Going directly for those borders, Largo was collecting the flavor, listening to the heavy pants coming from the fairy-type. ”L-Largo…” Gordie moaned. His name being said encouraged Largo, leading to him making wide circular motions like before, tracing all the way around, leaving behind his warm and sticky saliva. But there was something else he was doing. It was more subtle but with every sweep of his tongue, Largo was channeling a bit more electricity to the exploring appendage. The touch came with not just the initial pleasure but the added buzzing that made Gordie shake and bite his lip. The squeezes of his hole grew all the stronger but Largo kept going, pushing through and teasing Gordie further with more of these stronger waves, listening to pitch that was growing more defined. “That feels…” Gordie slurred, being glad that he was already laying down. Wanting more of this, Gordie started to push his ass back while the tongue was still moving and shocking him. Largo was more than happy to give the canine more of what he wanted, pushing his tongue in further and shocking more as they ran along, making Gordie lose further control of himself. His tongue lolling, Gordie was trying to handle all that was given to him but the intense and unique pleasure of being deeply rimmed and electrically stimulated, it all led to him crying out. Largo was still licking as he felt the hole squeezing down harder than ever. Grunts and shuddery moans came from Gordie as he was shooting his cum onto the dorm’s carpeting and the fur of his own belly, reeling from the unexpected strength of his climax, at the mercy of the throbs and spurts until the last rope was fired. He was thankful when Largo pulled his tongue free but gasped from the last lick that was given to his hole. “Oh, don’t think I’m done with you yet,” Largo said as he started to slide his body up and on top of Gordie’s, stopping when he was fully on top, shifting his hips to line up his barbed and knotted cock with the freshly licked entrance. “Here we go!” Largo grunted. In a single motion he pushed his cock down into Gordie’s tight ass, making the fairy-type huff from the added filling and stretching off his tailhole. His moans renewed, the pokemon on the bottom was melting from the feeling that grew stronger in time with more inches entering him. There was some roughness in Largo’s actions as he growled in Gordie’s ears, forcing the last inch inside and pressing his knot to the clenching rim. ”You’re even tighter than I thought you’d be,” Largo said as he started to rock his hips. It was true when he said that everyone wanted a piece of Gordie. The shy granbull was actually a great fuck and he had a lot of talent when it came to taking cock, pretty much able to handle any level of size or roughness. Largo’s hefty 11 inches were plunging deep into Gordie and his insides were welcoming him in, swallowing up the whole length, caressing them with heat and softness. “And you’re so big…” Gordie groaned, letting out another sharp yip from his prostate being hit dead on. Largo’s hold got tighter as his thrusts came at a faster pace, burrowing further in and leaving his musky mark in the form of precum. On top of being filled deep like this, Gordie was reeling from the barbs giving added stimulation. Largo bent his head down to unexpectedly bite down on Gordie’s scruff, keeping a firm hold that had Gordie reflexively submitting himself, feeling an added thrill from the sharp pricking teeth. Coming from Largo were growls as he put more force into his humps, making his knot and balls audibly smack into Gordie’s jiggling ass. The clenches kept him so tight; Largo kept his body going in return, savoring every bit of pleasure he could get from the passage. ”You’re such a good slut,” Largo panted when he let go of the scruff. He bit again but this time locked his teeth on one of Gordie’s ears, giving it a tug that had Gordie tilting his head back, loving the mix of pleasure and pain. Every little thing Largo did was making him moan out, likely loud enough for others on the dorm floor to hear. Just as loud had to be the harsh smacks of the luxray’s balls and knot, the in-and-out motions of his cock being paired with thick, wet noises. Still tugging on Gordie’s ear, Largo was going all the faster, making a point to keep his knot bashing into the canine’s rim, applying more force that was making the rim itself stretch all the further, allowing it inside bit by bit. Knowing what was going to come soon, Gordie braced himself while Largo was biting and drooling all over his ear, spurting more precum inside of him that was lubing his squeezing ass up further. The power behind the pushes and abundance of precum worked together. A final thrust did the trick, leading to a series of growls from Largo when he felt the bulb sliding in, being immediately squeezed like the rest of his length. After a few minutes, Largo managed to pull his knot from Gordie’s ass, making the hole ooze his musky seed, dripping down their balls and onto the floor. Between them was the scent of sex and their sweat, their pants being heard in the overall quiet dorm. But that wasn’t going to last. Largo still wasn’t done with him yet, using his hands to roll the panting canine, revealing that Gordie’s plump stomach was almost completely coated in jizz but his cock was much bigger than he remembered it being. ”Whoa! You’ve grown down there,” Largo pointed out. Scourge often teased Gordie for being about 4 inches but what Largo saw was something about 5 and a half inches but what really caught his attention was its thickness, being just too girthy to properly wrap his hand around and Gordie’s balls were big and heavy looking too. ”My brother stayed over during the summer,” Gordie explained. “We uh.. bonded and he gave me this protein stuff. He said it would make me less of a runt.” ”Well your brother didn’t lie,” Largo said, reaching down to grip and stroke the meaty firm flesh. The amount of thickness completely made up for its pretty average length and so much precum was leaking from the tip, already coating his hand. He watched the foreskin slink up and down, glistening from the abundance of precum. The strokes continued until his hand was completely slathered, then he eased off and looked Gordie in the eyes. ”Lay back for me, mutt,” Largo ordered. Gordie did what he was told right away, responding to the dominant order. On his back, Gordie watched as Largo was climbing on top of him, lifting his ass up and gently easing it down until his tailhole was touching the canine’s cocktip. Largo chuckled and reached his precum-coated hand down, using the fluid to coat his ass. Once he felt ready, the black and grey luxray suddenly pushed himself down, groaning as he forced his own ass to stretch around the bulldog pokemon’s girth. Gordie actually growled as he felt the tightness of Largo’s ass, made all the tighter by his own thickness. Bit by bit, more of his inches were feeling the heat of Largo’s ass, sinking down all the further. Largo pushed himself down again, taking multiple inches at once, letting out a gasp from his prostate getting pressed and rolled over. Not expecting this level of pleasure, Largo kept going while his cock was throbbing without being directly touched, shooting precum onto Gordie’s already messy big belly. Using his own strength he sat himself completely down on the granbull’s wide rod, feeling the uncut thing throbbing hard inside of him. “Fuck, maybe I should I teach you how to top,” Largo groaned. ”Well, my brother did teach me a bit,” Gordie said, blushing while also panting. Largo just started to move his body, making his anal walls slide along the canine’s length. ”I’ll get back to you on that,” Largo said as he lifted himself up and then pushed his way back down, feeling his guts being stretched all over again. It took some work to handle the amount of thickness but the accomplished volleyball had plenty of strength both inside and out, and put it to use. Relying on his endurance as well, he started to lift and lower himself, keeping the fat shaft lodged inside of him. ”Wow, y-you’re really tight…” Gordie panted. ”Hehe, you’re not used to saying that, are you?” Largo teased. The amount of precum being let loose from Gordie’s fat balls actually helped a lot. Already Largo was able to handle the shaft better, slipping his ass up and back down with more speed. Keeping that up, the actions came with a smoothness, one act leaning into the other; he was bouncing up and down on Gordie’s cock, feeling how hard it throbbed and spurt precum into him. ”Now…about those things your brother taught you…” Largo said while looking down at Gordie. “How about you show me?” It was a surprise to be thrust into by the usually timid and submissive dog pokemon. Not just that but Gordie did it well, pushing his fat cock as deep as it could reach, making Largo gasp and shake. Those sensitive spots within him were pressed hard, making the pleasure all the greater. Arriving with the firm thrusts were the plentiful shots of precum. Coming with the next thrusts were a series of thick squelches. Excess pre was getting pushed out from the luxray’s stretched hole, dripping down the huffing Granbull’s own shaft. They were both loving it; Largo felt himself getting rutted way more effectively than he would have expected. Gordie even got a grip on the electric-type before thrusting with more speed, bashing into Largo’s prostate. Largo could feel himself getting close but he wasn’t going to go down easily. He charged up his body and ran electricity through his ass, subjecting Granbull’s entire shaft with that intense buzzing sensation. While moaning out louder, Gordie continued to ram his cock in, enduring the shocks, making it a contest between how could last longer. The unrelenting bashes to his prostate was just too much for the feline, making him yell out and shake uncontrollably, his barbs flaring out as he started to shoot his cum onto Gordie’s stomach, adding to the mess already there while also adding his scent. The added clenches of his ass while still running electricity through it was finally enough to push Gordie over the edge as well. He exclaimed while shooting his cum into Largo, the seed coming out in a series of strong and thick blasts, filling up the luxray’s ass, coating the buzzing walls in layers of pearly white seed. Gordie was left panting from the feeling while Largo was catching his breath as well, feeling the last dribbles of cum leaking from his own tip. ”I think we should study together more often,” Largo said with a satisfied smile. ”Yeah…” Gordie agreed, still feeling the tingles from Largo’s shocking. “You do understand the difference in supply and demand curves, right?” ”How about we start round 2?” Largo suddenly asked and before Gordie could respond, he was back to bouncing on the still-hard fat cock…