Chapter Text
Hermione, Hermione, Hermione. That was all Ginny ever heard in her house. Second only to Harry, Harry, Harry, but she didn’t mind that as much.
It was annoying but whatever that her brother would talk about her incessantly. She thought his crush on that nerd was strange, but fine. But now it was her mom. Her dad. All the time.
“Hermione is head girl!”
“Hermione got 12 OWLs!”
“You should be more like Hermione.”
That last one was told to her by her mother, mid-argument. Ginny threw down her fork and left the room fuming. As if she wanted to be more like that dumb virgin swot. She bet Hermione got hot at the sight of Charms homework. Perfect, good girl Hermione. She was so annoying.
When school started that fall, Ginny fired on all cylinders, ready to play quidditch. But of course, there was Hermione at the Gryffindor table on the day of the first game, dressed in a stuffy Gryffindor sweater and knee length skirt, hair bushy and frizzy, nose upturned at how they were all “so obsessed” with such a “silly game”. Ginny rolled her eyes, trying to avoid throwing her bread roll at the girl. It’s not like she could catch it, anyway. She probably had the instincts of a beheaded slug.
Later that evening, after a blowout party in the Gryffindor common room. Ginny stumbled back into her dorm, pulling Dean Thomas in behind her. She had him pushed against the door, mid-makeout session, his hand creeping up her shirt to squeeze her breasts when an irritating voice piped up behind her. “Could you guys do that somewhere else, please?”
Ginny groaned, turning around to be face to face with Hermione, who was curled up in an armchair across from her, still in her ill-fitting sweater and too-long skirt. She was reading, of course. She stared at them, eyes wide.
“What are you doing here, Hermione?” asked Ginny, voice rough. Hermione blinked. “I was just reading. May you leave?”
Ginny reached down, squeezing Dean’s bulge over his trousers. Hermione’s eyebrows jumped, and her breathing shallowed. She had probably never even seen cock before, Ginny thought with a snicker. “No, I think we’ll stay,” said Ginny, continuing to squeeze Dean through his pants. He was moaning behind her. Hermione’s eyes did not waver. “Fancy a show, swot?”
Hermione stood up promptly, clutching her book in her hand. Then, she swerved past them, rushing out of the room. Ginny laughed cruelly, pulling Dean to her bed. Down goes the swot.
—
The next week, Ginny fled down the dungeon stairs, first essay of the term in her hand. She had heard that Slughorn would be still in. She found his room empty, but she left it on his desk, hoping that he would still count it.
She turned to leave the room and ventured down the hallway, stopping at the sound of a familiar voice. Hermione. She rolled her eyes. Of course Hermione was down here, probably asking a professor why they weren’t getting more homework.
“I know, sir, but I can’t have an Acceptable, I just can’t,” came Hermione’s voice. Ginny’s eyebrows shot up. Hermione got an Acceptable? She slid towards the door, disillusioning herself. She peeked in through the window of the door. She had to see this — Hermione being told off by a professor. The swot deserved it.
She looked into the room. She could see Hermione, in her frumpy sweater and skirt. Her eyes were wide. Across from her, Ginny was surprised to see Snape. Although, if any teacher was to bring Hermione down a peg, she expected it would be Snape. She waited expectantly for Snape to tell her off.
“I was wondering, maybe, sir,” Hermione was stepping towards Snape, sensible loafers clacking on the floor. “If you wanted to see my summer progress? Then, you may be able to think straighter, to rescore.”
Ginny narrowed her eyes. Summer progress? Only Hermione would ask for work over the summer. She looked at Snape, who was in his black robes. He nodded. “I doubt you could surprise me, Ms. Granger.”
Hermione nodded, eyes wide. Ginny watched as she stepped away from Snape, towards the desk with her bag on it. She was probably reaching for whatever paper she wrote over the summer. She stepped to the desk, surprising Ginny as she hoisted herself onto it, sitting up on the desk.
Then, her hand slid up, reaching up to squeeze her sweater-clad breast. Ginny gasped, hand coming to her mouth. What was she doing? Snape was right there. She looked at Snape. He was staring at Hermione, looking bored. What was happening?
Ginny stared, mouth agape, as Hermione reached down and pulled her huge sweater off of her, revealing a pair of bare, massive breasts. Hermione leaned back slightly, hands coming up to knead them. She pinched her nipples, a throaty sound coming from her mouth. Ginny couldn’t believe it. What was Hermione doing? Did she know what she was doing? Instinctively, she pressed her thighs together at the sight of the swot’s giant, bouncing tits.
“Do you like them?” Hermione stammered, as she rolled her nipples and squeezed her tits. “They’re a lot bigger than last year.”
Ginny looked at Snape, eyes bugging out when she realized his hand had disappeared into his robe, which had opened to reveal a huge, weeping cock. “Oh yes, Ms. Granger,” said Snape, sounding proud. “Much more impressive than last year.”
“Thank you!” Hermione said, gleefully. She pulled on a nipple, crying out when she released it and her breast jiggled. “I concocted that potion you suggested over the summer, and this is what happened,” she cried out, massaging her breasts. “And they feel so good. It feels like— I feel like a whore,” she whispered the last word.
“Good,” said Snape. He was panting, stroking his hard cock. “My slutty little Hermione. Look at your obscene bouncing tits, Miss Granger. What a good girl you are.”
Hermione gasped. “And look what else I can do, Professor!” She reached down, grasping one of her massive, watermelon-sized tits, and brought the nipple to her mouth. Ginny watched, hand falling to her cunt as Hermione suckled hard on her own nipple, cheeks hollowing out.
Snape came with a grunt, cum shooting out in spurts all over his desk. Hermione rushed to him, leaning down to lick the cum off the wood grain, breasts hanging lewdly from her chest. Once the desk was clean, she turned back.
“I have something else to show you,” she murmured. Snape watched in appreciation as she turned around, shimmying out of her skirt. Ginny gasped at the sight. Hermione bent over, revealing her naked ass, rounder and bigger than any ass Ginny had ever seen before. Hermione’s tits swung down as Hermione bent over, legs spread. She grabbed her own ass cheeks, spreading them, before letting them fall. They smacked into each other, bouncing and swinging, making a loud clapping noise. She smacked her own ass. Her cunt, which was bared for Snape to see, was dripping.
“I tried another potion for my behind, and, well,” Hermione snuck a hand between her legs, rubbing at her clit. “It’s so huge now. Huge and fat.”
“Chose to go without our knickers now, hm?” Snape stood up, stalking towards her. He pressed his thumbs into her ass cheeks, moving them to probe her asshole. Hermione cried out. He leaned over, bending down to inspect her breasts, carrying their heavy weight into his hands. “Heavy. Just like a real pair.”
“I can’t wear knickers anymore,” cried Hermione. “All bras and panties just tear when I put them on. My titties and ass are just too big. And they’re so heavy. I can feel them bouncing when I walk. I feel like a whore. All I can wear are these huge sweaters and skirts.”
“Good,” said Snape. He reached out, slapping her fat ass cheeks. “Walk around this school like that’s all you are, whore. Fat tits and ass, ready to be fucked.”
Outside the door, Ginny came all over her hand, panting. She started up again, riding her own fingers. It was too good.
Hermione made to stand, but Snape pushed her back down. “Suck my cock, slut.”
Hermione nodded frantically, ass still high in the air. She brought her face down, impaling her mouth on Snape’s 12-inch cock. She dragged her tongue up and down, choking on his length. She cried out.
“Take all of me, slut!” roared Snape. He slapped her heavy breasts, and Hermione came untouched, squirting cum onto the floor. Snape grasped her head, fisting her hair. “Did you just cum before your master, selfish little whore?”
Hermione nodded, tears springing to her eyes as she took his cock even deeper into her mouth. She choked on him as he came, cum dribbling down the side of her mouth. “Swallow it all, slut! It’s exactly what you deserve.”
“I’m sorry!” she cried. “But they’re so sensitive, so sensitive, I’m always aroused. Yesterday,” her voice dropped to a whisper. “I came in Charms when Seamus brushed my breast with his shoulder. All over the chair!”
“Had it been my class, you would have stayed and licked it all up” said Snape. He slapped her ass again, before kneeling down behind her. “I’m going to eat your tight pussy,” he told her.
“No, sir, please no, it’s too much!” she cried but he buried his face in her cunt regardless, rolling her clit between his teeth, and lapping at her wet hole. Ginny came again with a scream, humping the doorknob. It was too good, all of it. Hermione was just as much a slut as she was, she realized gleefully.
Hermione climaxed, creaming on Snape’s face. She nearly collapsed, but Snape held her up. “Oh no you don’t,” he said, grabbing her by the tits and throwing her over his desk. Her breasts squashed against the wood grain, and he roughly sheathed his hard cock into her pussy, fucking her tight hole. He pounded into her, and her ass rippled and shook with every thrust. Hermione screamed, “Oh god! Oh god, sir, it feels so good!” Her voice crescendoed as she vibrated with pleasure. “AHH!” She screamed.
Snape slapped her ass cheeks again, as if he were pushing an animal to go faster. His bulge was visible at the base of her lower stomach, Ginny realized, gasping. Hermione cried out “I’m so full! I’m so full! Oh god! Give me a baby, sir, please! Cum in me!”
Severus rubbed her clit and Hermione came, creaming all over his cock. He bucked with his release right after, filling her full of his hot seed. White, sticky cum dripped down her thighs.
Severus pulled back, vanishing the cum from both of them. Hermione stood up, squeezing her tits. She stepped back into her long skirt and pulled her sweater over her head.
“Was that good, sir?” She asked, voice breathy.
Severus reached down to squeeze her ass. “Good enough, Ms. Granger.”
“Oh good,” she said. “So does this mean that I’ll have an Acceptable forever?”
“Maybe I’ll consider rescoring your paper,” Snape said, voice even. Hermione smiled, leaning over to kiss him. “My pussy is always yours, sir,” she whispered. “Thank you for the potion. I love knowing about my slutty body and fat tits and ass under my swot outfits.”
Snape gave her one final squeeze to her tits, and Hermione whimpered. Then, she gathered her things, moving to exit the room. As she got into the hallway, she was cornered by Ginny, who stared at her, face red and panting.
“Hermione Granger, you nasty whore,” was all she said, and Hermione stopped breathing. Oh no. Did this mean her secret was out?
“That was amazing, Hermione!” Ginny said, her face breaking into a smile. Hermione stared, confused. “You’re a slut, just like me! And with a body like that,” she reached over, squeezing Hermione’s huge tits. “We’re going to rock this school. This is fantastic!”
Hermione laughed, letting herself be pulled away.