Disclaimer: This story is based on characters and situations created and owned by JK Rowling, various publishers including but not limited to Bloomsbury Books, Scholastic Books and Raincoat Books, and Warner Bros., Inc. No money is being made and no copyright or trademark infringement is intended.

Pairing: Dean/Harry

Warnings: SLASH: Male homosexual relationships, profanity, silliness, extremely crude humor, sexual innuendo, sexual situations, sexual intercourse, voyeurism, and perverted-ness.

Physical Demonstrations

“You can’t make me go!” Harry snapped.

“Harry, mate, stop being such a girl,” Seamus stated.

Harry narrowed his eyes on his roommate, pissed off not only at the situation, but also at the slandering of his manhood. “I am not going.” Each word was enunciated slowly in the hope that his point would be understood and accepted. No such luck, this was Seamus Finnegan after all.

“Blimey! How bad can it be? Honestly!” Seamus chuckled.

“You’re straight!” Harry accused. “You don’t have to go through what I’ll have to go through!”

“Now Harry, that’s not true,” Ron said, “Seamus and I have to go to a mandatory lecture as well.”

Harry’s glare turned on his best mate. “Yes,” he hissed, “you do. However, your lecture is being given by Professor McGonagall!”

Ron colored at that bit of truth. “You think I feel comfortable sitting through a lecture of that sort from our Head of House? It’s going to be embarrassing, we’re required to ask questions!”

“Come on, it can’t be that bad, Harry!” Neville tried to reassure his friend.

“Snape is giving the male homosexual sex lecture,” Harry declared.

“Bloody Hell! Are you serious?” Ron shrieked.

“I take it back; it is that bad. Best of luck, Harry!” Neville offered his condolences.

Seamus was laughing hysterically. He thought this was bloody amusing. Harry Potter was required to attend a lecture on homosexual male sex given by Severus Snape, the greasy git. His face was bright red and his body shook with laughter.

“Harry, we have to go,” Dean called from the staircase.

“I’m not going!” Harry sulked.

Dean walked up the few stairs and into the dorm room, stopping right before Harry. His luscious dark skin looked like milk chocolate in the afternoon sunlight streaming through the window. His deep brown eyes the rich dark chocolate that melted evenly. At six foot two, it was no question why girls and guys alike vied for his attention. His looks and fit body more than made up for his half-blood heritage in the eyes of the purebloods.

“Harry Potter, you will be coming with me,” he ordered.

“No.” Harry glared up with a pout. He knew that if he went Snape would utterly humiliate him. “Why can’t I attend the bi-sexual lecture being given by Professor Flitwick?”

“Because you’re gay,” Neville supplied helpfully. He got glared at for speaking.

“Then why can’t I attend the lecture by Professor Sprout?” Harry snapped.

Seamus sniggered. “You have a cock.”

Harry had to fight the urge to wrap his hands around Seamus’s neck. He wanted to strangle the bastard. Seamus didn’t have to get so much pleasure out of his suffering. He wasn’t the one who had to listen to Snape talk about sex.

“Maybe I’ll get lucky and Voldemort will come back to life and attack the school,” Harry mumbled.

Dean stared at him and smirked before turning away. “You can stay here, Harry.”

“I can?” he asked hopefully.

“Yes, you can. I’ll be sure and tell Snape that you were too much of a coward to attend. I’m sure he’ll love to know that the Chosen One is afraid of him,” Dean stated.

The pleased expression on Harry’s face instantly vanished. “I’m not afraid to go!” He wasn’t. It was just, the thought of Snape and sex in the same sentence made him want to throw up.

“I can foresee the weeks of taunts and disparaging comments sent your way, but if you really don’t have the bollocks, I won’t blame you,” Dean concluded.

Harry stormed forward and pushed his way past Dean. “I’m not going to give that bastard anything more to say,” he growled. He stalked down the staircase, ignoring the boy that followed him down and out of the common room. Gryffindors backed away from the fuming sixth-year, wondering what in the world had angered Harry. They hadn’t seen him like this since before he’d killed Voldemort.

Dean followed Harry down into the dungeons, heading for the classroom they had been ordered to meet in for the lecture. The door was open and students from all four houses, fifth-year and above, were pouring in. Well, the gay males anyway. Harry sat down in the far back corner, hoping that the shadows would keep him hidden. He didn’t want to be here and he certainly didn’t want to be forced to participate.

At precisely two o’clock, the door slammed shut behind Severus Snape as he stormed into the room. He swept up to the raised platform, robes billowing out behind him. His lips curled in a sneer as he faced the room of forty-three hormonal adolescents.

“This is the mandatory sexual education lecture for homosexual males. If you are in the wrong place, I hope you become mentally scarred,” Snape drawled. He picked up a scroll of parchment and began calling off the names, checking them off the list when they answered immediately.

“Potter.” No answer. “Potter.” Still no answer. “POTTER!”

Dean elbowed Harry in the side and Harry cursed, drawing the attention of everyone in the room.

Snape’s eyes narrowed on him. “Well, well, well, who would have guessed that the beloved Chosen One was homosexual? Does your adoring public know, Potter? Are you plotting with Ms Skeeter to have your face plastered on the front page of the Daily Prophet?”

Harry hissed quietly but didn’t answer him.

“Really now, Potter, I don’t know which of your pathetic, thick-headed Gryffindor mongrel groupies put you up to this prank, but I’ll not have you disrupting my lecture,” Snape snapped.

“It isn’t a prank, sir,” Harry bit out.

Shock rippled once more through the seated males and they began actively scanning Harry’s form interestedly. Potter was a poof? They’d certainly never seen him with anyone; that made him fair game as far as they were concerned.

Snape scoffed. “Oh? Do you think your puny Gryffindor brain possesses accurate knowledge about homosexual wizarding relations? I’ll test that shall I?” He smirked smugly. “Tell me, Potter, can a male wizard get pregnant?”

“Yes, but only if he carries the bearer gene, sir,” Harry replied.

“Do wizards get sexually transmitted diseases like Muggles?” Snape asked, arching an imperious black brow.

“No, sir. A wizard’s magic protects them from all sexual contagions,” Harry replied.

“It seems you may have come to the right place after all, Potter,” Snape conceded.

“If you say so, sir,” Harry responded.

Snape called the rest of the names, ascertaining that everyone was present as required. “The Headmaster seems to think that you children need to be informed about matters relating to sexual gratification. I shall be teaching you spells to assist in preparation and other such matters. If you must ask a question, raise your hand first,” he snarled. “Understand?”

“Yes, sir!” they chorused.

“In a relationship there are usually two partners, which are most often referred to as the dominant and submissive, or top and bottom. Generally, the smaller of the two males will take the latter role,” he stated. “There are bonuses to both positions, though most wizards prefer one over the other. Any questions?” His tone warned them not to voice any. “Impressive, I’m surprised you dunderheads have managed to follow along this far.”

A few of the young men bristled at the insult. Harry just yawned and leaned against the wall. He knew this already.

“The first thing you need to pack into your thick skulls, is that preparation is required for the submissive. Both partners should know how to properly do this. Incorrect preparation leads to pain, damage, and the possibility you’ll get your bollocks or bits hexed off,” Snape informed them with a smirk as several students cupped themselves.

“There are some basic spells that even you lot should be able to remember, if only so that your bits stay intact.” Snape sneered. “The first spell you will be learning cleans solid waste matter out of the rectum. The incantation is ‘Purgo’. Find a partner and practice,” he ordered.

Dean and Harry smirked and pointed their wands at each other in unison. “Purgo.” The tingling feeling swept through them, making their arses feel empty. They watched as other students cast the spell at their partner, slowly getting the trick of it as time passed.

“If you bumbling imbeciles haven’t grasped the spell by now you can practice on your own time,” Snape drawled as he leaned back against the desk. “The second spell you should have in your arsenal when you’re, as you hormonal-controlled fools say: seeking a shag, is ‘Lubricus’. This one is very important for the submissive, it coats their inner walls with lubricant, easing the way for penetration.”

Harry shivered in disgust. Snape had no business saying the word ‘penetration’.

“You will once again be allowed a few minutes to practice,” Snape grumbled. He noticed Thomas and Potter in the back corner seemed to cast it on their first try. His eyes narrowed in annoyance. He wanted to kill Albus for making him give the talk to a group of male teenagers. The whelps’ parents should have informed them of matters such as these.

Harry Potter shifted against the back wall, drawing Severus’s attention. An evil smirk spread across his face. He may not be able to get back at Albus directly, but he could certainly humiliate Potter. He snapped his fingers once and silence fell, the students hurriedly regained their seats.

“The rest of the lecture will be a demonstration,” he said, evil glint in his black eyes. “Mr. Potter, get down here, your assistance will be required.”

Thoughts of watching wizarding porn flew out of Harry’s mind. “What?” he asked in outrage.

“You shall be participating in the physical demonstration,” Snape smugly informed him.

“I will not!” Harry declared.

“Mr. Potter, I don’t believe I asked you if you wished to participate, I informed you of it, now get down here before I dock points,” he snarled, lips twitching in amusement.

Harry glared but grudgingly rose from his seat and stomped down to the front of the room. He crossed his arms in front of him, daring anyone to snigger at the predicament he was in. Surprisingly, to him at least, the audience seemed more interested than amused.

“Does anyone wish to volunteer to assist Mr. Potter with his demonstration?” Snape inquired.

People all over the room shot to their feet. A chance to touch Harry Potter? Yes please! Malfoy smirked superiorly and began walking forward, this was an opportunity he’d been waiting for, and he wasn’t going to let anyone else take it. Potter would belong to him, virginity and all.

“I don’t think so,” a voice hissed fiercely. Dean stalked forward angrily, wrapping a possessive arm around Harry’s waist when he reached him. “No one is touching what belongs to me.”

“Harry isn’t yours,” Draco grumbled jealously. “I doubt you have the finesse it takes to break in a virgin anyway.” He glared at Dean viciously. “Get your hands off him!”

The livid glare faded to amusement. Dean sniggered quietly as Harry burst into laughter. “I think he did a smashing job,” Harry declared.

“You’re not a virgin?” Draco asked in disbelief.

“No, my Harry is very much not a virgin,” Dean drawled smugly. “Harry knows exactly what he’s doing, and if he has to be part of this demonstration then I’m going to be right here as well. No one touches what’s mine,” he repeated.

“Very well, Mr. Thomas, you may assist Mr. Potter,” Severus allowed.

Draco glared at Dean for daring to deflower Harry as he stalked back to his seat. Everyone knew that Potter belonged to him. How dare that bastard steal Harry away from him?

“I shall not require them to show you imbeciles what a hand job is. If you haven’t figured out how to wank by now there is truly no hope for you. Potter, I assume by Mr. Thomas’s statements that you have experience with fellatio.”

“Yes, sir,” Harry replied with a blush.

“Very well, perform fellatio on Mr. Thomas.” He sneered out at the blank faces. “For you dunderheads that means a blowjob or, Merlin forbid, cock-sucking.”

Low chuckles sounded through the room as the words issued from Snape’s mouth. But they quickly ceased as Harry Potter turned around, unbuttoned Dean’s trousers, and pulled them down with him as he sank to his knees on the platform.

Harry nuzzled his cheek against the black boxer-briefs, inhaling the scent of musk, before yanking them down as well. He stared at the burgeoning erection and licked his lips, making the audience moan.

Harry leaned forward and breathed across the tip, watching in fascination as it twitched. His pale pink tongue shot out and swiped across the leaking slit. “Mmm,” he rumbled in delight. His tongue slid out of his mouth and swirled around the tip, suckling softly.

Harry settled down to work enthusiastically. He opened his mouth and swallowed Dean’s cock, sucking and licking along the length. He held the base of the erection in one palm and carefully fondled Dean’s bollocks with the other. Dean panted in pleasure as the wet tongue lapped at him. He reached down and fisted his hands in silky black locks, actively thrusting into his boyfriend’s mouth.

Harry’s skin was flushed a deep pink. Dean’s breath was coming in gasps and pants. “Harry!” He groaned when the kneeling boy suddenly took him deep into his throat. “Oh Merlin,” he cried. Harry swallowed, using his throat muscles to massage Dean’s cock. The action pulled a growl of desire from Dean’s throat.

“That will be enough, Mr. Potter,” Snape stated. His voice broke the fascinating scene and Dean groaned in frustration, slowly withdrawing his throbbing erection from Harry’s mouth. Oh yes, this was much more amusing than getting back at Albus. “What Mr. Potter just demonstrated with a disgusting amount of enthusiasm, is fellatio. The person it is performed on normally finds greatest pleasure when part of their erection is swallowed. This is also known as deep-throating,” he concluded.

Dean bit his lip to keep from moaning aloud as Snape said that. His cock was still throbbing and Harry was still kneeling before him, mouth level with his burning length.

“Next, since Potter is obviously a submissive, Mr. Thomas will perform a rim job on Mr. Potter. Rimming is the act of licking and biting, gently of course, around the sphincter muscle, also known as the anus. Or as you crude ruffians refer to it, the arsehole,” Snape said with a sneer. He leaned against the far wall, allowing the hormonal teenagers, who were sporting painful erections, to have a clear view of the demonstration that was about to occur.

Dean walked forward and unbuttoned Harry’s trousers, shucking them and the boxers off, kicking away his own clothes too. He grabbed Harry's hand and pulled him forward before turning him around. “Place your hands on the desk,” he ordered.

Harry did so; his arse was pushed up into the air by the action, revealing his pale white flesh to the room. Draco’s hands were fisting jealously as he watched Dean stroke and cup the smooth cheeks before parting them. Dean sank to his knees and buried his face between Harry's arse cheeks. He lapped at the small ring of muscle, running the flat of his tongue over the entrance.

A loud gasp tore from Harry’s throat and Dean smirked before diving back in. He licked and suckled, slowly working his tongue through the ring of muscle to lap at the inside. His teeth scraped the tender skin very lightly, making Harry moan as his cock twitched and dripped pre-come.

Students watching the erotic display shifted in their seats, groaning as their trousers constricted their growing erections.

“That will be enough, Mr. Thomas,” Snape declared, walking back onto the platform. He refused to admit that the display had aroused him. He turned and glared out at the students. “If you remember nothing else today foolish children, remember the following charm. It will keep your potential partner from becoming pregnant if they are a bearer.” He pointed his wand at Harry and clearly enunciated, “Subsisto Ubertas.”

Harry trembled as the familiar burning sensation washed through his neither regions, creating a barrier that would keep Dean’s magical essence from breeding with his own.

Snape gazed out at the students and smirked at their discomfort. “The last demonstration of the day will be anal sexual intercourse, though you simpleminded fools would likely know it as shagging. The Cleaning and Lubrication Charms earlier, combined with the rim job, have sufficiently prepared Mr. Potter for sexual intercourse. That doesn’t mean you whelps should forget the spell I just showed you,” he snarled. “I doubt your parents would be pleased if you got someone up the duff when you’re still in school.”

Dean and Harry were barely listening to what Snape was saying. Their attention was fully on their partner and the need to complete each other. They’d never been exhibitionists, bloody hell, no one had known they were together before Dean had stepped forward possessively earlier, but there was something exciting and delicious about the thought of shagging in front of a room full of people who wanted them and would never be able to have either of them. They didn’t share.

“Mr. Thomas, you may begin,” Snape ordered as he drifted off into the shadows. The lecture would end as soon as these two finished.

Dean leaned forward, pressing his cheek against Harry’s neck, his cock nestled in the cleft of Harry’s arse. “Ready?” he inquired lustily.

“Yes, please shag me!” Harry begged shamelessly.

“As you wish, love,” Dean purred, nipping a pale earlobe. He reached down, spread Harry’s cheeks, and pressed forward, sliding the tip of his cock into Harry’s tight, moist depths. He paused when it slid through, waiting for Harry’s nod before continuing deeper, stretching the muscles with his erection, and plowing carefully through the velvet folds. He was right where he belonged, inside of Harry. “So tight,” he gasped.

“Move!” Harry panted.

Dean smirked; sweat dripped down his skin and he did as ordered. He withdrew partway and sank back in, grinning as Harry keened in pleasure as the head of Dean’s cock brushed across that bundle of nerves. The sound was attached directly to the cocks of everyone in the room, and they all throbbed in delight as they watched Dean Thomas shagging Harry Potter over a desk before their very eyes.

“F-faster,” Harry begged.

Draco watched as Dean obeyed and was torn between glaring hatefully and staring worshipfully. He wanted to be the one shagging Harry; he looked more beautiful right now than he ever had before.

Dean began thrusting more quickly into Harry’s arse, speeding up as the tightness increased. He wrapped one hand around Harry’s cock and began fisting it, tugging and rubbing, working the length in his palm. Harry pushed back against him more firmly, desperately seeking release from the coiling pleasure that was overwhelming him.

“Dean!” he wailed as he came, shooting ropes of white seed from his body.

The muscles in his arse tightened impossibly further, strangling Dean’s erection. “Harry!” He groaned in delight as he poured his release into his boyfriend’s arse, sinking his teeth into a pale shoulder at the same time, marking Harry as his.

He pressed soft and loving kisses across Harry’s back as he withdrew, expressing his love for the smaller boy with fleeting touches. He grabbed his wand and flicked it with the casual assurance of someone who has performed the action a great many times.

The evidence of their pleasure vanished, and the spell Snape had cast on Harry contained all the essence Dean had deposited within him, neutralizing and banishing it as well. The two young men rearranged their clothing and headed toward the door, smirking as they saw every student present casting Cleaning Charms on their trousers and robes.

They sauntered out of the lecture hall with satisfied grins on their faces and fingers entwined.

-

That lecture went down in Hogwarts’ History as the only lecture given by Severus Snape that students wished they’d been able to attend.

-End-

Note: This is a repost. I apologize for removing it before. It will remain up now and has been edited slightly. The second chapter isn't really a second chapter, just a Drarry version of this oneshot as several readers requested.