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Day 1: Anatomy

Mr. Phillips sat back in his desk and smiled, watching the cubs slowly file into his classroom. Some days being a 6th grade teacher was an awful job. The kids could be unruly, disobedient and lazy. It was often a thankless lot in life, but not today. Today he was going to begin teaching a lesson that had its own reward. Many of the other teachers loathed teaching Sex Ed, but not Mr. Phillips. He had a very particular lesson plan in mind; one which he very much enjoyed teaching. He cracked a grin, leaning forward in his chair again as the last few cubs entered and sat down.

"Alright class, quiet down please. Jimmy, sit down!" he raised his paws and glared at one of the cubs in the back. Fortunately they weren't too rambunctious today and hushed after a few moments. "Now then, for the next three days I'm going to be teaching you a very special lesson. I'm going to be teaching you all about sexual education." He turned around and wrote "SEX" in big letters on the whiteboard behind him. The cubs all giggled at each other.

"Now this lesson is different for both boys and girls, so I'm going to have to ask all the girl cubs to head next door to Mrs. Hatheway's classroom. She'll be educating all of you today. Please gather your things and head next door. She will be taking attendance, so don't get any ideas about sneaking off!" he turned back around and addressed the class. The girls began gathering their books and backpacks, shuffling off out the door and chatting with one another. Several of them gave silly looks to the boys and stuck out their tongues. Once they'd all left, he closed and locked the door behind them.

"Now then boys," he turned around and smiled. "Starting off with the simple questions, who can tell me why all the girls were separated from all you boys?" the teacher walked back behind his desk, leaning forward onto it. "Anyone? Come now, don't be shy." A little leopard boy raised his hand in the second row. "Yes, go ahead." the teacher motioned to him.

"Because we have a different body part than girls do." he answered shyly.

"That's absolutely correct, and who can tell me what that body part is?" the teacher continued. This elicited several snickers and giggles from the around the room. "Keenan, how about you. You seem to think this is quite amusing, clearly you must know the answer." he pointed to a rottweiler boy snickering with his friends in the back of the room.

"It's a penis Mr. Phillips!" he yelled loudly, a roar of laughter errupting across the room. Mr. Phillips grinned and nodded.

"That's right Keenan, good answer. Boys all have a penis, and girls do not. There are many, many differences that separate boys from girls, but this is perhaps one of the most obvious. This is also where we're going to begin today's lesson, learning about the penis." Each time he said the word 'penis' a wave of snickering and laughter rose and fell. But he wouldn't be phased. The teacher put his paws behind his back and started padding down through the rows of desks. "Now undoubtedly you've all seen your own penis before," he began.

"Eddy hasn't!" Keenan burst out, looking right at an overweight Corgi cub in the front row. The corgi pup blushed heavily and slunk down in his desk. Another wave of laughter erupted from the room. Cubs certainly knew how to be cruel, but Mr. Phillips had a way of evening the playing field a bit.

"Keenan, none of that! I want you to stand up and walk to the front of the class. Right now!" he rapt his paw on his desk and frowned. Keenan stood up with a smug look on his face and sauntered up to the teacher's desk. "Now as I was saying, though you've all seen your own penis before, you may not be aware that different species have different kinds of penises. Canine's for example, when erect, have a red veiny penis with a large swelling at the base, this is called a knot. When they are not erect, their penis will retract into a furred pouch, called a sheath. The sheath is a trait shared by many other species, but the knot is unique to canines and similar species." the teacher explained as he walked back up to the front. "Keenan, could you please demonstrate for the rest of the class?" he grinned, pointing at the rottweiler pup. The class went quiet and Keenan blushed, ducking back slightly.

"Wha.. what?" he looked up at his teacher with big eyes, ducking his tail down.

"Please show the class your sheath, Keenan. You'll need to remove your clothes." Mr. Phillips instructed.

"I can't do that, everyone's watching!" he blushed deeper, laying his ears back. It was so cute watching the pup squirm. This is why Mr. Phillips loved sex ed so much.

"That's the idea, Keenan. Now please, remove your clothes. You don't want to fail this class do you?" the teacher frowned and looked down his muzzle at the pup.

"N.. no, I don't want to fail. Can I change behind your desk?" he asked softly.

"No Keenan, you can undress in front of everybody. There's nothing to be ashamed of."

The usually boisterous rotteweiler pup was abnormally shy and reserved now. He blushed heavily as he pulled off his shirt, setting it on the teacher's desk as he exposed his bare chest to the class. The teacher nodded at the boy, watching and motioning for him to continue. Keenan reluctantly proceeded, undoing the button on his trousers, sliding them down off his legs and stepping out of them. Standing there in nothing but his underwear, the nervous pup looked up at his teacher again. "Th.. this too?" his voice quivered nervously, tugging at the elastic of his underwear. The rest of the class watched, eyes wide.

"Yes, those too. How are we supposed to see your sheath if you're still wearing underwear?" the teacher grinned and chastised. The bashful pup nodded and took a deep breath, dropping his shorts in one swift movement, then covering his face behind his paws. His bare sheath hung exposed for the rest of the class to see. It was fairly small, as one would expect from a prepubescent boy his age, and only the pink tip of his boyhood was visible while the rest remained carefully tucked away.

"Good, now stand up on this chair. The boys in the back can't see you." The teacher said, reaching for an unoccupied chair and moving it in the middle of the room. The pup did as he was told, whimpering a bit from the embarrassment. "Now now Keenan, there's nothing to whimper about. You're a fine looking boy and you're doing a fantastic job." Mr. Phillips complimented, patting the boy on his bare bottom. Some of the other boys in the class snickered, some just watched wide eyed, a few hid behind their paws.

"Now as you can see class," he turned, addressing the rest of the room, "There are currently two main visible parts of male genitalia. He we have the testicles," he began, reaching his paw up and carefully holding the pup's warm furry balls, rolling them softly between his fingers. The pup gasped and twitched a bit, but stayed standing up straight. "The testicles are responsible for producing sperm, which we will go over more in detail during tomorrow's lesson. But they're one of the most sensitive parts of the male anatomy, containing a large number of nerve endings. This is so you know to keep them protected, because without the testicles you cannot produce sperm."

The teacher then gently moved his paw up to the boy's sheath, which was beginning to grow a bit more plump. Keenan let out a soft gasp as the teacher's paw caressed the most sensitive parts of his body. "And here we have the sheath. This part of the anatomy serves as a protective sleeve to house genitalia when not erect. It also keeps the penis warm in cold conditions. As you can see, Keenan's penis is currently housed in the sheath, but if we expose him to more warmth and genital stimulation," he continued, then began slowly rubbing up and down the boy's plump sheath, using his other paw to fondle his balls. The embarrassed pup tried to stifle back a moan, but he couldn't help but enjoy himself. Slowly and surely the pup's canine length was coaxed out from its sheath. Mr. Phillips stroked along the soft pink flesh, making his length nice and hard.

"As you can see, it doesn't take much stimulation to cause the penis to become erect. Sometimes stimulation doesn't even have to be physical. The simple act of observing or even conceiving a sexual situation can be enough to cause an erection. This is all perfectly normal behavior, and nothing you should ever be ashamed of. Let's have a show of hands, who here is erect right now after watching Keenan's display?" he asked, taking his paws off the rottweiler boy and turning to the class.

A few shy paws went up, then a few more, and soon every boy in the room had his paw raised. "See? Perfectly normal. This also affords us a perfect opportunity to demonstrate some of the differences between species. Raleigh, why don't you step up here as well." he pointed to a tall chestnut stallion, one of the school's up-and-comers in their athletic department. The horse's ears stood up tall at mention of his name and he sharply rose to his feet, nearly knocking over the desk.

"I.. um... me sir?" he pointed to his chest nervously.

"Yes you Raleigh, you're the only horse in the room so I'd like you to show the class how equine genitalia differs from canine." he beckoned the boy closer, and could tell by the bulge in the boy's pants that this was going to be a very good demonstration. He brought over another chair, placing it next to the rottweiler's. "Please remove your clothes and stand next to Keenan here." he casually instructed.

The young horse was a little less shy, perhaps more used to changing in the locker room with other boys. He removed his jacket and unbuttoned his shirt, then several members of the class let out a gasp when he dropped his pants. Mr. Phillips could immediately see why, the young horse was tremendously well endowed for a stallion of his age. His stiff length was nearly 9 inches long and his large dark balls hung low and plump. When he stepped up onto the chair, his boyhood was just about at eye level with the teacher.

"Well then, excellent example Raleigh." he reached up and held both boys' shafts, one in each paw. "As you can see there can often be tremendous size differences between species, but it's important to remember that size is not a measure of manhood. This is a myth that you may have heard many times, but a larger penis does not make a better or more mature man. Size can vary by genetic background, age, and species."

He stroked up and down Raleigh's shaft a few more times. It was terribly hard to contain himself right now. Mr. Phillips wanted nothing more than to take that beautiful horse cock in his muzzle, or maybe even bend over and let the boy pound his ass. But he had to be patient, this was still a sex ed class. Still, there wasn't much he could do to hide the massive bulge in his own pants.

"Ahem, as you can see, a horse penis is also differently shaped. It's a much more uniform cylinder with a distinct flare at the end." he ran his fingers down and rubbed around the flared tip, causing the horse to whicker a bit at gasp at the sensitive touch. "Now I'd like the rest of you to come up here and have a closer look. Come on, out of your seats, crowd around." he beckoned them all in. The boys stood from their seats, curiously approaching. Keenan and Raleigh both blushed a bit as they approached, watching nervously. "Don't be afraid to touch. Put your paws on it, see what it feels like to hold it." he instructed.

Raleigh leaned his head down, watching as the other boys stroked his length. He stamped his hoof and flicked his mane, trying to maintain his composure. But every touch, every stroke, it made his cock twitch and throb. While most of the boys were fascinated with the horse's size, Keenan's smaller dog bits were still getting plenty of attention. His knot was hard and throbbing as he was squeezed, stroked, and fondled by the other boys. He began panting and his hips started thrusting toward whatever boy was handling him.

"Allow me to draw your attention over here class." Mr. Phillips said, motioning toward the rottweiler pup. "What Keenan is doing here is a partially involuntary thrusting motion, which occurs commonly as a male nears climax. I'm actually going to have to ask you to stop fondling Keenan and Raleigh for now, we don't want to stimulate climax just yet. That will be the subject of tomorrow's lesson."

But it seemed like his warning might have come too late. There was a young white bunny eagerly stroking the dog's length, and Keenan was humping faster into his paws. He started whimpering and moaning softly. Then only seconds after the teacher had warned them to stop, Keenan's cock shot a stream of warm creamy spunk into the air, splashing all over the bunny's face and chest. Keenan started looking tremendously worried and ashamed; the bunny just looked shocked.

"Now now, it's okay class, this is perfectly normal. Keenan, fantastic job, you've just demonstrated an orgasm for the class." he turned and pat the dog on the rump again, giving him an approving squeeze. "Simon, if you'd like to change clothes, I believe I have some extras in the lost and found that you can use." he turned, smiling at the bunny boy.

Simon grinned, licking some of the cum off his face and stripping off his shirt. As Mr. Phillips saw the boy's soft bare chest and smooth belly, he had another idea. "Well I believe we've all received an adequate primer on the penis, let's move on. Keenan, Raleigh, you may take your seats. Thank you very much for assisting in the demonstration. Simon, could you please remove your pants as well and come up here please?" the teacher walked back behind his desk, patting the tabletop. The horse and dog boys shyly returned to their seats. They didn't redress just yet, but they held their clothes in their laps.

The bunny boy seemed very eager to be the next participant. He quickly stripped out of his shorts and underwear, then climbed up onto the teacher's desk on all fours. His plump bunny package hung down from his body. His cock was already hard, and the bunny was apparently very happy to be exposed. Mr. Phillips ran his paw down the boy's back, pausing and holding his rump with a grin. "Excellent Simon, thank you. The next thing we're going to learn about is the prostate. Now you can't see the prostate, it's internal. However the prostate is the pinnacle of sexual stimulation for males, and it's certainly a part you'll want to know about. To reach the prostate, you'll have to penetrate the anus." he put both of his paws on the bunny boy's rump, spreading it for the class to see. Simon looked back over his shoulder curiously, starting to get a bit nervous.

"This will also require some lubrication. By itself the anus can be quite tight." he demonstrated by pressing his fingers against the boy's tight tailhole. Simon gasped a bit at the pressure, but Mr. Phillips didn't penetrate him yet. "There are several common lubricants you can easily aquire. Sexual lubricants are often the most effective, but can also be more expensive. Other lubricants such as hand lotion, vaseline, or even cooking oil can also be effective. However your body is capable of producing its own lubricant when none of these are available, saliva." Then the teacher leaned his muzzle down and pressed his warm, wide tongue under the young boy's tail. He rimmed the cub in front of the entire class, getting him all slick and wet. Simon gasped and the moaned softly, spreading his legs wide to better allow his teacher to work him over. The teacher licked quite a bit longer than he had to. The boy's tailhole was so tight, so sexy, he could have licked it all day, but the lesson had to continue.

"Now then," he continued, catching his breath, "As you can see Simon here is now quite a bit more lubricated." The teacher demonstrated by rubbing his fingers along the bunny's slick rump and under his tail. Then in one swift movement, he penetrated the boy with his finger. Simon threw his head back and gasped, then pushed back hard against the teacher's paw, taking him in as deep as he could. "Excellent job Simon. Now that you've penetrated, it can take a bit of time and experience to find the optimal location for prostate stimulation but," he grinned, pressing his finger deep into the boy, skillfully stimulating his prostate and making him moan in pleasure, "but you'll definitely know when you find it."

He continued teasing the bunny cub a little longer, grinning as he finger fucked the boy. Simon looked up at him with lustful eyes, his gasps getting faster and higher. Then just as it seemed the cub was about to climax, Mr. Phillips pulled his finger out and pat the boy softly on the rump. He wanted to fuck that cub so badly his cock ached, but not yet. He had to dismiss the cub before animal instincts started taking over and he couldn't control himself anymore. "Thank you, Simon. Please return to your seat." he instructed, taking a deep breath and running his paw delicately down the cub's back.

"I do believe that's all the time we have today," he said looking up at the clock on the wall. "Keenan, Raleigh, Simon, thank you all very much for assisting me and your classmates in this wonderful learning experience. All of you, your homework for tonight is simply to explore your body. Remove your clothes, touch yourself, become erect, penetrate yourself. It may also be helpful to do this with a friend or a group. Anyone who brings back pictures or video will receive extra credit. If you have any questions, please ask. Tomorrow's lesson will be very exciting, and I want you all to be familiar with touching your bodies." Mr. Phillips walked back to his desk, taking a deep breath and sitting down. He could hardly believe he'd just gotten through that.

He watched the boys get dressed again as the class gathered their things. His cock was still so hard and aching he just couldn't hold it anymore. Hidden behind his desk, Mr. Phillips pulled his length out and began stroking himself. He tried to do it as stealthily as he could, hiding his forearm movements by doing the majority of the motion with his wrist. He was so aroused it wouldn't take him long anyway. He didn't even notice as Simon came around behind his desk.

"Mr. Phillips, did you say you had another shirt... wow!" he gasped, staring down at his teacher's throbbing cock.

"Um! Erm, yes, right there in that drawer. I'll take your dirty one, thank you Simon." he fumbled and shuffled to hide himself, terribly embarrassed at having exposed himself to the cub. Simon just grinned, putting his old shirt on the desk and pulling out a new one from the drawer. It was clearly a girl's shirt, small and pink with a low cut collar and small sleeves. Simon put it on anyway, which barely covered his soft bellyfur. Then leaned in close to his teacher, pulling aside his ear.

"I'd love to take some private lessons." he whispered into Mr. Phillips ear, then gave a wink and skipped off out the door, closing it behind him. Oh fuck, oh fuck, this was all too much. Now that all the cubs were gone, he pulled back from the desk and stroked himself hard and fast with his paw. He grabbed the cum-covered shirt Simon had been wearing and buried it against his muzzle, taking in the cub's scents. He sniffed it long and deep, giving his cock a hard squeeze, and then he lost it. He shot a huge load in a high arc that covered his desk and the floor, shooting part of the way down the asile by the students' desks. He hadn't had a load that big in years, well, not since teaching Sex Ed last year.

He panted as he slowly recovered, thinking to himself. Yeah, this was definitely his favorite lesson. He grinned as he began cleaning up his cock and the mess on his desk using Simon's t-shirt.