Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/ works/12951246. Rating: Explicit Archive Warning: Underage Category: F/M Fandom: Harry_Potter_-_J._K._Rowling Relationship: Hermione_Granger/Severus_Snape, Other_Relationship_Tags_to_Be_Added, Severus_Snape/Ginny_Weasley, Luna_Lovegood/Severus_Snape Character: Severus_Snape, Hermione_Granger, Other_Character_Tags_to_Be_Added, Ginny Weasley, Luna_Lovegood Additional Tags: Explicit_Sexual_Content, Pedophilia, Masturbation, Dubious_Consent, Naked Female_Clothed_Male, Oral_Sex, Public_Nudity, Vaginal_Fingering Collections: Harry_Potter_Smut Stats: Published: 2017-12-08 Updated: 2018-03-20 Chapters: 3/? Words: 5070 ****** Snape's Urges ****** by BigSnapeFan ***** Hermione *****             At last, Professor Severus Snape had Hermione Granger in detention. He'd wanted that goody-goody little bookworm ever since she set foot in Hogwarts three years ago, but he'd never been able to get her into detention. That was the trouble with the goody-goody ones. But he had her now. He'd gotten her for defending that idiot Longbottom, of course.             Snape watched as she scrubbed potion stains off the dungeon floor. In her well-kept Gryffindor uniform, Hermione was the picture of wholesome respectability. Even while doing menial labor, she managed to look prim and dignified. Snape's dick stirred as he thought about the virginal fourteen-year- old body hidden beneath that neat, respectable wardrobe. Surely, she was a virgin. This was Hermione, after all.             It was time for him to make his proposal, before his dick got any harder. “Remember, you'll be in here every night for the next month,” he told her.             “But Professor!” Hermione objected at once. “I have so much homework! I don't have the time for so much detention!”             Snape pretended to consider it. “Well...” he said slowly, “...we could come to some other arrangement.”             “What is it?” asked Hermione. “I'll do anything!”             “I was hoping you'd say that,” said Snape, trying not to sound too eager about what he knew was coming. “Please take off your shoes and socks.”             Quick as a pixie, she unbuckled her black Mary-Janes, tossed them aside, and then pulled off her knee-length stockings. Of course, the little goody-goody saw nothing untoward about getting barefoot. She didn't know what was coming.             “Now stand,” he commanded her.             She stood to attention like the good little schoolgirl she was.             “Take off your cloak,” he told her.             She now looked a little concerned about where this might be going, but let the cloak fall to the floor anyway.             “Take off your jumper.”             She did so, now very hesitantly and with much shaking of her fourteen-year-old hands.             “Take off your tie.”             She tossed it aside, a defiant this-is-as-far-as-I-go look on her face. Snape's lips curled into a smile.             “Take off your blouse.”             “Professor!” declared Hermione, putting her hands on her hips. “This is most indecent! I will not remove another article of clothing!”             “In that event, you will be in here every night for the next month,” Snape reminded her. “On the other hand, your detention will be over with very quickly if you do what I say now. Think of all the time you won't have to spend scrubbing dungeon floors.”             Hermione looked down at the floor, considering. Snape knew what her answer was going to be. They always came to the same answer, even the goody- goody ones like Hermione. Eventually, she did too and nodded.             Hands shaking worse than ever, she unbuttoned her blouse, revealing what was underneath. She blushed deeply as she pulled her arms out of the sleeves and let it fall to the floor. Of course, Snape thought her white, conservative bra was hardly worth blushing over, but those were the goody-goody ones for you. No doubt she had never thought that her bra would ever be exposed outside the safety of her dormitory! But a lot more of her secrets were going to be exposed soon…             “Skirt,” said Snape shortly.             Wordlessly, she let it fall around her feet, blushing worse as her white, conservative knickers were revealed. Sometimes with the naughty ones, there wouldn’t be knickers, but Hermione was obviously amongst the goodiest of the goody-goody ones. While the naughty ones could be fun, he relished the shy embarrassment of the goody-goody ones. Hermione was turning out to be an especially excellent case in point. She was already as embarrassed as most girls were when they were naked, and she still had her underwear on! Merlin, he hoped he wouldn’t cum too soon!             “Step out of it,” said Snape, gesturing to the skirt at her feet.             She stepped out of the skirt and kicked it aside. For a moment, she stood there, shaking and blushing terribly. With the loss of her uniform, so too had she lost her air of wholesome dignity and respectability. She was now a cheap slut like any other, and she knew it.             “I'm really not this kind of girl,” she said eventually. The goody- goody ones often said that.             “It turns out you really, really are,” Snape told her. “Now remove your brassiere.”             “No!” Hermione declared. “You are committing a criminal act, Professor! You'll be sacked after I report this to Professor McGonagall!”             “I'll deny everything,” said Snape with a smirk. “Who do you think they'll believe?”             “Professor McGonagall takes my word very seriously!” said Hermione, crossing her arms.             “Miss Granger, you have already stripped down to your underwear,” Snape pointed out. “Where exactly did you think this was going when you did that?”             Hermione breathed heavily, but said nothing. She had no answer to that because there was none. She'd known where it was going.             “Remove your brassiere,” Snape repeated.             “You won't tell anyone about this, will you?”             “I think I have more to fear from the exposure of this incident than you do,” Snape said smoothly. “Now remove that brassiere.”             As couple seconds later, Hermione’s white, conservative bra was drifting to the floor like a giant snowflake. Her boobs were quite sizable for a young teenager. Her fourteen-year-old nipples were erect and, although the dungeon was a bit chilly, Snape was quite sure that the cold wasn't the lone cause. As humiliated as she was, it would appear she was a little turned on by her striptease. But it wasn't over yet.             “Turn around,” Snape told her.             Hermione turned to face away from her professor. He smirked.             “I think you know what's next,” he said.             Hermione's entire body flinched. No doubt she had been hoping that she would at least get to keep her knickers on, but now she saw that she would be denied even that dignity. After a short pause, she pulled them down, revealing her sweet adolescent ass, before kicking her last remaining garment aside. But as delightful as the back view was, it was time for Professor Snape to get the front view.             “Face your professor,” he commanded her.             As she turned around to face him again, she let her hands fall over her crotch. She was trying to sell it as a coy, girlish pose, but Snape wasn't fooled.             “What do you think you are hiding, Miss Granger?” he asked her sharply.             “Professor, please!”             “Hands at your sides!”             For a long moment, she looked like she was going to object again, going to make one final stand for whatever was left of her good-girl dignity. But it seemed she realized that battle was already lost. With a heavy sigh of resignation, she let her hands fall to her sides. Considering how neat she kept the rest of her body, her bush was surprising untidy. No doubt she'd thought no one would ever see it anyway.             But Snape was seeing it now. At long last, Hermione Granger had no more secrets from the Potions Master.             “Wow,” he said, looking her nude body up and down, “you are a little slut!”             Hermione bristled. “I did this because you told me to!”             “And you obeyed because you're a little slut!”             “Just do what you're going to do to me so I can get out of here!”             “But I'm not going to do anything to you,” said Snape, as he paced around the shivering naked teenager. “I've decided you're going to do it to yourself. Yes, you will finger yourself while I watch.”             “F-f-finger myself, sir?”             “Masturbate using your fingers. I trust you understand the process.”             “I — I understand the mechanics of it, of course,” said Hermione. “But I don’t masturbate.”             “You're a teenager with raging hormones. You must masturbate!”             “I don't!” she said, holding her head high as though she still had dignity left.             “And why not?”             Hermione was no doubt calculating that she could no longer claim to be a good girl. “I don't have the time,” she said finally.             “You do realize you have nothing to gain from lying to me at this point?” Snape asked her.             “I do, Professor!”             Oh God, Snape was going to see this virgin perform her first ever sex act on herself! Snape's boner stiffened even further. Oh, he hoped he wouldn't cum before the good part had even started!             “Get down on the floor like the animal you are,” he told her as he sat down in a chair. “You're not wearing any clothes, so you must be an animal.”             She did as she was told. Oh God, he could scarcely believe that he'd finally reduced good-girl Granger to this!             “Begin!” he commanded.             With that, Hermione Granger began fingering her sweet pussy. Before long, moans of pleasure were escaping from her virgin lips. Snape stroked himself faster and faster as he witnessed this formerly innocent girl discovering the pleasures of her own body. That was when Snape came in his pants. It was no big deal, of course. The mess could be easily cleaned away with magic, which was why he hadn't bothered to strip in the first place.             “I have achieved orgasm, Miss Granger,” he told her. “You can stop now.”             Of course, Hermione did not stop. He knew she was far too close to orgasm to be able to stop. Snape grinned to see her keep going and going, no longer doing it for him, but for her own self-discovery. And he was getting to see it. At long last, she too had climaxed.             “Why did you not stop after I achieved orgasm?” he asked her, although he knew the answer.             “I — I…” she said awkwardly. “It seemed like I should finish it once I started it.”             “Yes, of course, Miss Granger,” he said, giving her a knowing look. “The rest of your detentions are now canceled. You may dress now.”             Hermione put her clothes back on. In contrast to their earlier neatness, they were now rumpled and disheveled. She tried to straighten them out, no doubt hoping the rest of the world would think nothing had changed, would think that she was still a good girl. Maybe the rest of the world would believe that, but Snape knew the truth. He knew she was a slut like the rest of them.             “Thank you,” she said, once she had dressed and gathered her things. It really was amazing how many of the goody-goody ones ended up thanking him.             “You are quite welcome, Miss Granger,” he said. “You are dismissed.”             Hermione sped out of the room. Snape smiled to himself. He knew she would be fingering herself again tonight, and she'd be fantasizing about this incident while she did it. ***** Ginny *****            Snape was grading papers when Ginny Weasley suddenly entered his office. He had had her in detention many times — she was a Weasley, after all — but those detentions had been strictly by the book. Although he was very much a pedophile, Snape had not found the little Weasley sister to be sexually appealing during her first and second years. Now she was thirteen and, looking her body over, he noticed how much it had changed over the summer. He made a mental note that Ginny’s next detention with him might well be very different from her previous detentions.            “Professor, I need your help,” she said as she walked up to his desk. “I want Harry to like me, but he only seems interested in Cho Chang. I don’t know how to get his attention. A girl in my dormitory said that you’re an expert on what guys really want, so I thought I’d come to you for advice.”            Snape smiled as he realized that maybe he wouldn’t have to wait for Ginny's next detention before he could have some fun with her!            “What do you know about the ways of love, Miss Weasley?” he asked her.            “Not much,” she said a bit timidly, fidgeting with her hands.            “Do you know where babies come from?”            Ginny considered it. “Sort of…” she said slowly. “I mean, I know that a woman becomes pregnant when she and a man do something called ‘having sex,’ but I don’t really know what that means and no one will explain it to me. They say I’m too young to know.”            “You are definitely not too young to know,” said Snape firmly. Good God, the girl was thirteen! When were they planning to tell her?            “Oh, I don’t want to have sex with Harry!” Ginny said quickly. “I mean, maybe I will someday, but I don't think I’m ready for that yet.”            “Even so, you must understand the process. Do you know what a penis is?”            “Well, of course, I do!” she said indignantly. “I did grow up with six brothers, you know!”            “You know that every boy has a penis,” he continued. “Mr. Potter has a penis. Even I have a penis.”            Ginny’s eyes grew wide, but she said nothing. It was obvious that while she had known boys had penises, she had never quite considered the full implications of that fact.            “Would you like to see my penis?” he asked her suddenly.            “Are — are you sure that’s okay?” she asked, her face turning red.            “Of course,” he said. “This is educational. I wouldn’t mention it to the other teachers, though. They might not understand.”            “Okay,” said Ginny. “You can show me.”            Snape threw off all his robes as he stood up, and then removed his graying underpants with a flick of his wand. Apart from his feet and lower legs, which were still covered by his imposing dragon-hide boots, his very adult body was now fully revealed to the curious young girl before him.            “It’s very big,” she said, her eyes wide with fascination. Snape realized that she must not have seen any penises other than those of her brothers when they were prepubescent.            “Touch it,” he told her.            Ginny looked like she was going to refuse, but she reached out to touch it after only a few seconds of hesitation. Her burning curiosity had evidently gotten the better of her.            “Do you know what the penis is for?” he asked her.            “It’s for peeing, isn’t it?”            “Well, that’s one of its purposes,” Snape explained. “Its other purpose is for sex. But before the penis can engage in sex, it must first become erect. That means it must become even bigger than it is now.”            “How does that happen?” asked Ginny, still exploring her teacher’s dick with one of her virginal thirteen-year-old hands.            “One way is for someone to stroke it,” Snape explained. “Start doing that now so you can see what it looks like when it’s erect. I’ll tell you when to stop.”            Ginny did as she was told, and Snape entered the heaven of having his powerful cock stroked by the delicate, feminine hands of an innocent young girl. He tried to keep his composure and avoid moaning as he continued with his little sex ed lesson.            “The other way a penis can become erect is more complicated to explain,” said Snape. “You know, of course, that you have a vagina.”            “Y-y-yeah,” said Ginny, suddenly very tense. “I — I have one of th- those.” She was still stroking her teacher's dick, but it was becoming a little less vigorous than before.            “It’s okay, you don’t have to show it to me,” said Snape, although thinking that this might change the next time he had her in detention. “I know what they look like.” Merlin, did he know that!            “Okay,” said Ginny, visibly relieved and she went back to stroking Snape's dick with the same firmness as before.            “Now, sex occurs when the man inserts his erect penis into the woman’s vagina,” Snape explained.            Ginny’s eyes could not have grown any wider.            “I — I don’t think it would fit,” she said eventually.            “Oh, it fits very well,” Snape assured her. “You know how when you feel attracted to Mr. Potter, you get a strange feeling in your vagina?”            “You know about that?!” gasped Ginny, scandalized.            “Of course, I do,” said Snape casually. “It’s the same for any girl. When you feel attracted to a boy, it ultimately means you want to have sex with him. The feeling in your vagina when you’re attracted to Mr. Potter is your vagina preparing itself for sex.”            “But I’m not ready for sex!” Ginny insisted.            “Your vagina doesn’t know that,” Snape explained. “In fact, your vagina might be a lot more ready for sex than you may think. I trust you have begun menstruating.”            Ginny stared blankly.            “That is to say, you have started having your period?”            Ginny was too embarrassed to speak, so she just nodded.            “Do you know why you get a period?”            “Not... not exactly,” she said very shyly.            “Basically, your body prepares itself every month for getting pregnant," Snape explained. “If you don't get pregnant during that month, you have your period. When did you start getting your period, Miss Weasley?”            “A-about th-three years ago,” said Ginny nervously.            “Well, that’s when your vagina expected you to start having sex,” Snape explained.            “That young?!” Ginny gasped. “But how come you’re not supposed to have sex until much later?!”            “Oh, society has its rules,” said Snape, waving a hand. “Anyway, just as your vagina prepares itself for sex when you're attracted to Mr. Potter, a boy's penis becomes erect when he's attracted to someone. No doubt Mr. Potter's penis becomes erect when he's attracted to Miss Chang.”            Ginny was silent as she digested this information.            “Okay, you can stop now,” said Snape, just as he was about to cum.            Ginny pulled her hands back from Snape's now fully erect penis. She stared at it.            “This is what Harry's penis looks like when he's thinking about Cho?” she asked.            “Well, his is probably smaller,” Snape explained, “but it's the same idea.”            Ginny stared at Snape's glory a little longer. “So, I... I want Harry's penis to get like this when he's looking at me?” she said eventually. “How do I do that?”            “He must see the promise of sex when he look at you. Wear as little clothing as possible when you're around Mr. Potter. Give him a little flirty smile whenever he looks in your direction. If sex with you looks like a possibility, Mr. Potter's penis will recognize that and become erect.”            “But then he might come to me excepting sex before I'm ready for,” Ginny pointed out. “I — I really don't think he would settle for a little kissing after his penis got... like that...”            “There are many pleasurable things boys and girls can do to each other that come short of sexual intercourse,” Snape told her. “One of these things is called oral sex.”            “Oral sex,” Ginny repeated. “How does that work?”            “Well, when you perform oral sex on a male, you take his penis in your mouth rather than in your vagina,” Snape explained.            “Ew!” said Ginny at once.            “I assure you that it's a pleasurable experience for both parties,” said Snape. “I can show you how it's done right now.”            “Are — are you sure that's okay?” asked Ginny uncertainly.            “Of course,” Snape replied. “It's not like this is real sex.”            Ginny looked at Snape's giant, throbbing cock for a moment, considering. Her wide, brown eyes still looked very innocent.            “All right, I'll give it a try,” she said eventually.            With that, the young girl got down on the dungeon floor and accepted Snape's raging boner into her innocent, thirteen-year-old mouth.            “You have to suck on it,” he instructed. “Use your tongue.”            This being her first attempt at a blowjob, Ginny had no technique. Even so, it wasn't long before the sensation of her virginal, thirteen-year-old tongue on his mighty cock brought Snape to a glorious climax. Ginny was quickly overwhelmed by the amount of semen flooding into her mouth.            “You have to swallow it,” he told her. “Swallow it, Miss Weassley. Swallow it all!”            Looking humiliated that she hadn't been informed about this part in advance, Ginny nevertheless gulped it down as ordered. As she took the penis out of her mouth, sperm dripped from her lips. Snape grinned knowingly. Although she certainly wasn't the first thirteen-year-old to taste his seed, he still get a special thrill from taking the innocence of a girl so young.            “How — how was I?” she asked, her voice shaking a little.            “You were quite good for a beginner,” Snape assured her. “However, you still need to learn technique. That will come with practice.”            “Could I come back here sometime to practice it with you again?” she asked as she stood up.            Snape grinned. “Yes, of course. I shall look forward to it, Miss Weasley.” ***** Luna *****            One fine day, Snape was walking along on the edge of the Forbidden Forest when he spotted a pair of colorful tennis shoes laying in the grass. He gritted his teeth at the sight of litter on the picturesque grounds of Hogwarts! Did the students have no respect for history? This was surely not allowed in Salazar Slytherin's day! Snape picked up the shoes and put them into his extension-charmed pocket. When the owner tried to get the shoes back, he would confront them with their crime of littering!            But then he saw a pair of striped toe socks laying just a little ways away, on a path leading into the Forest. Snape pocketed them as well, and then saw a knitted scarf. Soon, he was pocketing an entire trail of clothes that led deep into the Forest. The items got further apart as he went, but the path was nevertheless easy to follow. The scarf was followed by a polka-dotted jacket and then a plaid skirt. Snape's penis twitched as he realized this girl was getting naked! And he'd bet his considerable porn stash that the girl in question was the lovely Luna Lovegood. He'd wanted to get her into detention for ages, but it was hard to blame anything on someone who was so quiet and undisruptive.            Snape licked his lips, thinking of how to proceed. He was not going to go through with his original plan to simply confront her about littering. No, he would be doing something better. Put her in detention? That could be fun, but he had a better idea. He would continue taking away the clothes she had discarded, and then leave her to deal with the situation she found herself in. With luck, there would still be more clothes for him to take.            And there were. It was a tie-dye shirt! The girl was in her underwear or less! Although Snape was still telling himself that this was about punishing a student for littering, the truth was that he was looking forward to the treat at the end of the trail of clothes. But he didn't want the treat to come too soon. Dare he hope that he'd encounter a bra first? His boner strained against his pants at the thought!            It wasn't long before he did find a very Luna-ish bra laying discarded. Oh God, the girl was topless at the very least! Could she be totally naked? Trying not to think about that, lest he cum too early, he continued on.            Eventually, Snape heard melodic humming in the distance. He was unmistakably coming up on Luna Lovegood herself. Was she still distant enough that he might encounter her knickers before he encountered her? He told himself that it wouldn't be that bad if she still had her knickers on. She would still be practically naked. But oh, if he could take away her knickers and leave her with absolutely nothing to cover that sweet little body of hers!            Reaching a bend in the path, he peeked around a tree and saw her. It was Luna Lovegood and she was wearing nothing but her radish earrings. Apparently entirely unselfconscious about her lack of clothing, she was humming merrily to herself as she picked wildflowers to put in her long blonde hair. Of course, she didn't know that the Potions Master was getting to see the flower between her legs! It turned out she was a natural blonde.            But where were her knickers? There was not a stitch of cloth on her body nor had Snape found any knickers on the path. Then he spotted Luna's knickers. They were laying just a few feet away from where she was, right next to her wand. He could hardly claim that this was littering when they were so close to her, but it only took him a second to drop the mental pretense that this was about school discipline.            "Accio knickers," he whispered, flicking his wand at the colorfully patterned underpants. They flew into his hand, after which he quickly stuffed them into his pocket. It then occurred to him that she might be able to use her wand to get out of her situation. He couldn't have that!            "Accio Luna's wand," he said. Soon, the wand had disappeared into the same pocket that now held all of Luna's clothes.            Luna continued humming, unaware of how very much her situation had changed. Snape approached her, hiding in the bushes, to get a closer look as she frolicked about like a little wood nymph. There was a gentle beauty in the way she was enjoying nature in her natural state, and it certainly didn't hurt that her nude body was simply exquisite. Lithe arms swinging around with carefree abandon! Graceful little feet scampering across the forest floor! Hardened nipples sticking up from thirteen-year-old boobs! Evidently, she was actually rather cold, but didn't mind it. Presumably, she had decided that being cold was a fair price to pay for being so free. But soon, she would realize that she no longer had a choice in the matter!            When Luna decided that it was time to go back inside, she turned to walk back to where she had left her knickers. Snape salivated as the moment he was waiting for approached. How would she react to the discovery that she would be walking back to the castle in her altogether? What if she decided to hide in the Forest rather than expose herself? As a teacher, Snape couldn't allow a student to remain alone in the Forbidden Forest overnight, especially without a wand for protection. He decided that in that event, he would show himself, act like he had just stumbled upon her by chance, and force her to go back inside. Of course, he would pointedly refuse to believe that she could have lost all her clothes and give her a juicy detention.            As it was, she didn't react that much at all. Her protuberant eyes got a little wider and she gaped slightly. She looked around the vicinity for her missing undies. Finding nothing, she began to seem a little panicked, but only a little. She looked down at her naked body and shivered suddenly. Snape knew she had been hit by the full gravity of her predicament.            For a while, she just stood there, shivering and occasionally glancing down at herself. Her mouth was still gaping open a little. Then she set those protuberant eyes of hers on the path leading out of the Forest. Perhaps she was thinking that the rest of her clothes could still be where she left them. Merlin, would she be disappointed!            Taking a deep breath, she began walking back down the path. Snape discreetly followed along behind, which gave him a delicious view of Luna's behind. How fortunate he was that her long hair stopped at her waist! Although he still had a massive erection, he managed to resist fapping. However, he couldn't stop himself from licking his lips several times.            Every time, Luna reached the place about where she had discarded a garment, she looked around for it. Finding nothing, she would look down at herself and shiver again. Each time, her eyes got wider as no doubt she became more sure that she would not be leaving the Forest with anything on her body but her radish earrings and the wildflowers she had put in her hair.            Eventually, she reached the edge of the Forest. She peeked out from behind a tree just to confirm that, no, her shoes had not been spared. She looked down at herself again. She took one of the wildflowers out of her hair and tried to put it between her legs, but it just fell down when she walked. She scanned her surrounding, no doubt looking for something she could use as makeshift clothing. Of course, there was nothing.            All else having failed, she took a deep breath and walked out onto the grounds as she was. She was instantly met with jeers from some nearby students.            "Look, Loony-Loony is nakey-nakey!"            "I knew she was crazy, but I didn't know she was a whore too!"            "Hey, where are all your clothes, Loony?"            "I guess I lost them," said Luna in her vague, dreamy voice.            "Yeah, right! How could you lose all your clothes?"            "What a weirdo!"            "You like all the boys looking at your pussy, you little hussy?"            "SLUT! SLUT! SLUT! SLUT! SLUT!"            Luna walked on, ignoring the cat-calls and dodging the mischievous spells they were throwing at her. Without the cover of the woods, Snape could no longer follow her unobtrusively. He could only stand at the edge of the Forest and watch as she walked up to the castle doors in her birthday suit. At least he was still getting to enjoy the sight of her bare ass jiggling with each step she took. As she slipped in through the doors, Snape thought of all the teasing and embarrassment she would certainly face as she walked all the way up to Ravenclaw Tower in the buff. Oh, how he wished he could see it! Instead, he could only bring himself, at last, to orgasm.            Of course, Snape quietly returned all of Luna's things later. The next time, he saw her, she had her wand tucked behind her ear. No doubt she had decided to put it there so that she wouldn't lose it even if she lost all her clothes again. Even so, he played his little game with her again and again. Luna thought it was her taunting classmates who were stealing and hiding her things. She never knew it was the Potions Master. Please drop_by_the_archive_and_comment to let the author know if you enjoyed their work!