“Hi Buddy!”

	I stopped, heart skipping a beat. Laura had actually said hi, to me. She knew I existed. This was the best day of-

	“Oi, doofus. Turn your brain back on for a second.”

	 I blinked at the dark-furred canine next to me. Like most of the pups at our school, Brian was such a mutt that you couldn’t tell what breed he had started as. German Shepard if anything, but only if you looked at him from a half-mile away. During a rainstorm.	

	“Sorry!” I couldn’t keep my tail from wagging as I apologized. Brian rolled his eyes. Laura was already halfway down the hallway, headed towards her next class with the other blue-collars. She, like the other (very few) blue-collars in our school, had a mostly intact breed. She specifically was a husky mix, covered in amber-on-white fur, and a pair of icy blue eyes. She was really, really pretty. I gave her a wave goodbye as she rounded the corner. Unbelievably, she waved back.

	“Buddy, you’re going to knock someone over with that thing.” Brian said, ducking out of the way of my rapidly wagging tail. “You’re such a pink, they should put you on the cover of one of your textbooks.”

	Brian had been given a white collar at the start of this school year, our first one at the city’s new middle school. He’d been a lot grumpier ever since. Probably because of his extra math classes, though the surgery probably didn’t help.

	“Ha, sorry Brian. Have fun in Civics class!”

	He huffed. “Sure. See you after school, I need to make sure you get home without freezing like a deer in the middle of the road.” He smiled as he left, small enough that I barely noticed. That aside, I needed to get going, too.

---

	I was the last one in to the Companionship class locker room. The other dozen-odd boys in my class were already undressed, with a few stragglers still stepping out of their undies. Large mirrors bordered the room’s lockers, ensuring that there was no chance of privacy for the boys. The group of mutts were a mix of shaggy and mottled fur, each of us a hodgepodge of mismatched features, like a jigsaw puzzle forced back together in the wrong order. This mosaic of naked fur was broken up by the pink collars that each of us wore, and the spots of color between each of their legs.

	“Buddy, hurry up. You’d better not get us in trouble.” Jake scolded. He was the tallest Pink in class, which wasn’t much in the grand scheme of things. His long black fur hung over his eyes, making it hard to read his expression. His chastity cage was stainless steel; plain, but the shiny metal contrasted nicely against his coat, making his restrained bits visually pop.

	“Sorry, sorry!” I said, flashing Jake a smile as I threw off my t-shirt and shorts. My fur was a sandy color, speckled with browns and grays in an irregular pattern. When given the choice at the beginning this year, I’d picked a pink chastity cage; I wanted something that would match my collar. Checking myself in the mirror, I still thought it looked cute, holding my penis like a tight plastic shell.

	Now undressed, I tailed the rest of my classmates, heading into the classroom. The floor was set with standard wooden students’ desks, though the wall decorations were less conventional. Posters of male wolves, muscular and in their young adulthood covered the walls. In their various states of undress, I could see the barest hint of their butts or sheaths in each image. On the first day of class, it had been funny, but over time I found myself staring, my penis pressing against my cage as I took my seat near the front of the class.

	“Good morning, boys!” Mr. Reagan said, grinning, as he stood up from his desk. The gray wolf was tall, with long graceful limbs cloaked in silver fur. My cheeks lit up; he was teaching today’s class stark naked, a rare occurrence that we hadn’t seen since our lesson on basic male anatomy. “I have a very important lecture for you all today.” The tip of his penis, a bright red, was peeking out of his sheath. “Based on the classroom setup, can anyone guess what today’s lesson is about?” He gestured to an odd piece of furniture in front of his desk, a metal rack covered in dangling leather straps. Next to it sat a tray of unfamiliar items.

	“Is it about cumming?” Piped Andy, a runty shorthair, while wagging his tail.

	“Ha! A little eager there, Andy? Alas, you’re close, but not quite.”

	“Testicles, maybe?” Says Jake, chin in paw.

	“I like where you mind is, but no.”

	I sat, scratching my head as the rest of the class quieted. With no other ideas forthcoming, Mr. Reagan started the projector with a rattle and a humm.

	“Good guesses, but this is a tricky one. Today, we’ll be learning about an internal part of the male anatomy.” He pointed at the image onscreen, a side-facing diagram of the male sex organs. “Who can tell me what this organ on the inside of the anal wall is?”

	I knew that one! My paw shot up. “The prostate, right?”

	“Very good, Buddy! Yes, our friend the prostate here will have a lot to teach you in the next few years. This will be a very basic overview and demonstration. Buddy, since you knew the answer, would you be willing to be my assistant for this lesson?”

	“Sure!” I chirped. Mr. Reagan was easily my favorite teacher, so I practically skipped to the front of the room to stand next to him. He reached down to ruffle the fur on my head. This close, I could take in the layered shades of gray in his coat, and the distinct scent that hung around his groin. His penis was still only partly visible, and our closeness let me take a quick peek. He’d given us an eyeful at the beginning of the year, but since then, I’d only seen glimpses of penises, those displayed on the classroom’s posters, plus glimpses of the other caged pink boys.

	“Buddy, I’m going to have to uncage you for this. That means I’ll have to restrain you, okay?” He said, affectionately.

	“Okay…” I said, ears drooping. It sounded strange; ever since starting school, I’d only been uncaged during cleaning days by my dad. Taking it off felt like I was doing something wrong.

	My teacher lifted me up by the armpits, lowering me onto the rack. He acted like I weighed nothing, his coiled muscles moving with surprising gentleness as he started strapping me in. The harness creaked as it took my weight. With a series of clicks, he coiled the straps around me. Once my forepaws were securely bound behind my head, he spread my legs, exposing me to the rest of the class. I felt the rough texture of his pawpads, squeezing my thighs as finished restraining me.

	“Okay Buddy, you ready to be unlocked for a few minutes?”

	I suppressed a whine, and nodded. The tiny universal key he held in his paw was enough to pop the lock, sliding my pink restraint away and leaving my penis visible to the other boys. I blushed, feeling my nakedness in a way I hadn’t felt since before I’d gotten my pink collar. My penis started thickening immediately, teased by the lingering feeling of Mr. Reagan’s paws on my lower body. I took deep breaths, trying my best to relax it and stay soft.

	“Class, make sure to thank Buddy for volunteering later. Now, the prostate has several functions. In males wolves, like myself, it’s used for reproduction. When we’re mating with a female, it helps produce semen, though this also occurs with other sexual acts, which I demonstrated for you a few weeks ago. In lesser canine boys like yourself, however, it has a different function. Any guesses?”

	The teacher was standing behind me now. I craned my neck, trying to watch the lecture, but couldn’t quite manage it. The other boys were also also looking elsewhere; every other dog in the room had his eyes locked on me in a way that made my shaft twitch.

	“Distracted, are we boys? Well then, this next part might get your attention. For boys like you, the prostate is a pleasure organ. It’s the primary method by which you’ll achieve orgasm.”

	I gulped, feeling his presence next to me, then flinched at the cold sensation at my tailhole. “Lubrication makes accessing it much easier,” he continued, “but you won’t always have it available when you need it, so be mindful.”

	I let out a whine as he slipped a finger into me. “Does that hurt, Buddy?” He asked. I shoot my head as best the restraints would allow. It stung a little, but that was rapidly fading.

	He nodded. “Good. I’ll be gentle, but let me know if you feel any pain.” He pushed further into me, his pawpad pressing upward against the inside of my groin. It almost tickled, like an itch I couldn’t possibly scratch that only kept growing. I shook in the harness, trying to buck my hips. Despite my best efforts, I was achingly hard, my little erect dick visible to the entire class. My blush deepened. I really hoped they wouldn’t be mad at me for this.

	“With Buddy’s cage removed for this demonstration, you can clearly see the erectile response. You all will receive the vast majority of your stimulation while caged, which will obviously look different. Still, you should expect some penile response. If the pressure is ever painful for you, you’ll want to have your cage inspected for a proper fit.”

	Paying attention to the lesson was becoming difficult. Every press of his finger made me moan a little louder. He gave that soft spot inside me a deeper press, making my tailhole clench around him, before abruptly withdrawing. I was panting hard, my body sagging as the weird feeling stopped. Still, my lower half seemed to protest, feeling a bit of discomfort at the lack of touch. It felt naughty to think it, but I wished he’d kept going.

	“I won’t be demonstrating penetration by a male today, we’ll start on that unit next semester.” Mr. Reagan held something up to the class, a blue plastic object that I couldn’t see clearly, and began lubricating it. “This will have to serve for today. It’s a prostate massager; smaller than the males you’ll be working with, but designed to stimulate the prostate more directly.”

	He knelt down, pressing the cold plastic massager against my entrance. “Buddy, your reactions here are important. You have my explicit permission and encouragement to be as loud as you want during this. Let us know how you’re feeling, and make any other sounds you feel like, all right?”

	“I-I’ll try…”

	“Good boy. Here we go…” The wolf slid the object in slowly. I whined, feeling a small sting as my ring was pushed open. I huffed, breathing deeply as I forced myself to relax. The pain had just started to fade when the toy started to vibrate.

	“Ah!” I squeaked, maw lolling open as the teacher started to wiggle the toy, the topmost nub pumping into my sensitive spot. My body desperately wanted to buck against the toy, push it deeper into me, but the restraints held me still. I was at my teacher’s mercy, immobilized while he pushed the toy inside me, moving just slow enough to be less than I wanted. 

	“How does that feel, Buddy?”

	“S-’S gooood…” I moaned, unable to stop myself as soon as I opened my muzzle. “Cah-c’n you go faster?”

	The woof clicked his teeth, abruptly stopping his movements. He gave my nose a gentle flick. “What a naughty little mutt you are. You aren’t in a position to make requests, young man. This is about educating your fellow students, it isn’t about what you want.”

	I whined, ears flicking back in shame. “Sorry, sir…” Tears welled up in my eyes. Whatever this feeling was, it was making me act disrespectful and selfish. Was the feeling itself bad, or was I just being brattier than usual? I took a deep breath, holding the tears in, when he started moving the toy again. 

	I yipped and huffed in time with its movements, trying to obey instructions despite the guilty pit in my stomach. My penis was still uncomfortably erect, letting out little drops of clear fluid. It stood halfway out of my sheath, the ring of my skin still taught around the swollen part at the base, the part that Mr. Reagan had called a ‘knot’. It twitched erratically, entirely outside of my control. It felt weird, seeing a part of my body that didn’t feel like me, like it was some kind of parasite that had been stuck onto me. 

	“That’s better. Thank you for being so vocal, Buddy. As I’m sure you all can tell by the noise, the prostate is an extremely potent pleasure center. As it continually receives stimulation, such as through this device, or more commonly through anal intercourse, it will gradually induce an orgasm in the recipient. This manifests as a pressure in the groin, similar to a need to pee but located just below the bladder. Buddy, this is very important: I need you to tell me when you start feeling that, okay?”

	“O-okay.” I huffed, mind reeling with every push of of the plastic toy against my prostate. My mouth hung open, tongue lolling as I took shallow, quick breaths. My whole body was shaking, paws trembling in their restraints, my chest trying to rattle itself to pieces, frantic for even an inch of the movement that the straps denied. “Mmmmmhm! Mmmmhmmmhmmhmm….”

	My teacher smiled down at me, looking strangely gentle despite the storm he was creating inside me. “How’re you doing down there, Buddy?”

	“Haaah… feel… r-really weird!”

	“Do you think you’re getting close?”

	“I- HAH!” I felt something spike, the sparking of a fire in my lower body, spreading out to the rest of me like ready kindling. It was hot and urgent, filling my head with smoke, making my lungs desperately suck in air. “It-!” Words slipped away when I tried to speak. I tried again, begging my muzzle to work long enough to obey the wolf’s command. “It feels like s-something’s COMI-”

	The teacher pulled the toy out of me, leaving me heaving and thrashing in the harness. “NNNGH!” I grunted, my tailhole frantically clenching, trying to press down on a source of stimulation that was no longer present. I gasped, body vibrating out of control. I was caught on a tightrope, unable to keep my balance, but unable to give in and fall either. Mr. Reagan said something, but I couldn’t make out the words, my head still filled with sparks and by body full of hot coals. 
	The adult’s paw landed on my head, reclaiming my attention. “Buddy.” He said, curtly, “Relax your abdomen, now.”

	I whined, barely in control of my body. It took all of my concentration, but I was able to let my stomach muscles go slack. It was a relief, but a minor one. I could feel myself slipping slowly back from the edge, the ball of pressure in my groin starting to abate. Humiliatingly, my body seemed to protest, desperately craving just a little bit more, but receiving nothing.

	“That’s it, relax, deep breaths now, You did a very good job Buddy, you can rest now.” My teacher said, his muzzle close enough to my ear that I could feel the warmth of his breath. I wanted him to lean closer, but he turned away. “Class, please thank Buddy for helping with class today. Your homework for tomorrow is to describe a cub’s physical and mental reactions to prostate stimulation, based on your observations today. I expect at least 500 words, so please be thorough. Class dismissed. Jacob, please let Ms. Kennedy know that Buddy will be late, I’ll need a few minutes to see him cleaned up and re-caged.

	The other boys left with a few mumbled goodbyes to me. It was hard to tell what they thought. Was it pity? Were they maybe envious? They definitely shouldn’t be, I thought as I hung limply in the metal suspension rack. I was still erect, less so now, but in a way that was distinctly uncomfortable. Looking down at myself, my penis was completely drenched in whatever clear fluid I’d been making during class. The earlier pressure had faded into a bone-deep ache, sore just to the point of being painful. I felt wrong, fundamentally, like I’d made some kind of mistake. It reminded me of a few years ago, when I’d run ahead of dad on the sidewalk, then tripped and fell hard onto the asphalt. Like my own body was punishing me.

	“You okay, kiddo?” Mr. Reagan said, undoing the straps on my arms and legs. Being able to move again made me feel better, but was also a little scary, like I’d fall out of the harness and shatter into a million pieces.

	“C-can you put my cage back on, please?” I mumbled.

	My teacher smiled. “Of course.” Releasing the last of the straps, he picked me up, cradling me in his arms like a baby. He was at least half-hard himself, several inches of his ruby-red penis bumping against my tail. “You know, you cut things a little close at the end there, Buddy.”

	I sniffled, tears welling up that I tried my best to hide. “S-sorry, sir.”

	He set me down on the desk, rubbing a paw gently on my headfur. “No need to apologize, kiddo. I’ve done this with plenty of other cubs your age, I know not to push you too far. Besides, you let me know what you were feeling whenever I asked. Not bad for someone who hasn’t been given an orgasm yet. I’d even call you a model student, Buddy.”

	My cheeks warmed. He produced a box of wet wipes, cleaning between my legs with excruciating slowness. To my shame, the act made me get hard again, which now felt distinctly painful when combined with my inner aching soreness. We waited together in silence, soaking in the eerie quiet of the classroom while I gradually got soft enough for him to slip the cage back on. I immediately felt much better, the feeling of the cool plastic sealing away those awkward, too-intense feelings, at least for now. The soft click of the lock was a profound relief. 

	I moved to leave the classroom, but the wolf laid a paw on my shoulder, keeping me in place. “Say, Buddy, since you did such a good job today, would you be interested in some private tutoring? It’d be a more practical application of we covered today, though strictly cage-on this time. It would give you a bit of a head-start on next semester’s material.” His penis twitched at me, erect once more and pointed directly between my legs.

	I rubbed my paws together self-consciously. “Well… if I can keep my cage on, I guess that’s okay.”

	He grinned, canine teeth poking past his lips. “Wonderful. Let’s head into my office. I’ll write a note explaining your absence once we’re done.”

	I took hold of the wolf’s paw, following him to the stately wood door at the back of the classroom. I walked in, taking in the cramped room full of my teacher’s personal effects. The wolf followed, stepping in behind me.

	Then he locked the door.