Walking the halls of Hogwarts after-curfew was just as nostalgic for Harry as the opening feast had been. That probably said a lot about him as a student.
Sure, he'd been walking these halls all summer, but it felt different now that students were back. The castle had been so full of life during the day, yet now it was as quiet as the grave. Harry wished he still had his cloak. Not because he needed to hide (as a professor, he was free to prowl all night if he wanted) but just for old times' sake. He wondered who had that cloak now. James, probably.
Harry once snuck up this very set of stairs he was climbing. The Astronomy Tower, as the tallest point in Hogwarts, was where he, Ron, and Hermione had taken good old Norberta for Charlie to pick up. Harry shook his head. It was hard to believe they were first years when getting into all of that trouble.
He didn't have any illegal dragons this time, just the robes on his back. Outside the Astronomy classroom, Harry knocked loudly.
"It's me!" he said.
The door swung open far enough for a dark face to appear.
"There's no need to shout," Aurora said with a friendly smile. "I'm right here."
"I thought you might be sleeping," Harry said.
"Oh, I'm always awake at this hour. It's when I start my stargazing."
"I expect that would make you even less likely to hear me."
Aurora laughed. "Guilty!"
She pulled the door open the rest of the way, allowing him in. The room had a naturally cozy atmosphere, aided by its reliance on natural starlight with a minimum of candles, while large beanbag cushions took the place of chairs. Aurora had dressed for the occasion. She had on a dress instead of robes. It was a velvety shade of scarlet, tight in some places and loose over others in the best kind of way.
Harry looked as long as was polite. This was a kind of dress made out be looked at, but there was moderation in all things. His eyes flickered over Aurora's body… then looked her in the eyes and nowhere else. Aurora's smile grew.
"Things went well, I take it?" she asked.
"Am I that obvious?"
She walked to the center of the room, where a stool-sized tray was laden with a tall wine bottle and two glasses. Popping the cork, Aurora said, "I did only tell you to come celebrate if the day went without a hitch. Please, take a seat."
Harry picked the cushion closest to the empty wine glasses. When the bottle was uncorked, Aurora sat down opposite him, tilting the stem.
Before a single drop could spill out, the bottle flew from her hands, nestling into Harry's. Aurora raised an eyebrow as Harry poured each of them a drink.
"I'm capable of pouring a bottle of wine."
"I know," Harry said. "But I'm selfish this way. I prefer serving beautiful women to getting served by them. That extends to all pursuits."
He smiled innocently at Aurora, gesturing for her to take her drink, which she did.
"You aren't as shy as you pretend to be," she said after a long sip.
"I don't think I'm ever shy exactly. But I do have plenty of problems with other kinds of manners."
In the middle of the room, not far from where they sat, was Aurora's personal telescope. It was made of pure silver, aimed up through a section of glass ceiling. Aurora soon set down her glass, crawling over to it.
Harry felt his eyebrows rise as he watched her move on all-fours. Her dress curved up noticeably just past her back. Boys at Hogwarts took Astronomy to look at more than just stars. Sinistra was famous at Hogwarts for reasons separate from her teaching abilities, and Harry could only imagine how much a public appearance in this outfit would make those whispers skyrocket.
"What are you looking for?" he asked.
Sinistra had stopped, resting on her knees as she pressed her eye to the telescope's base.
"One moment!" she said. Her hands adjusted the lenses with effortless grace. "There! Come on, have a look."
Harry drained what was in his wine glass, then crawled over to join her. Aurora moved aside, offering him the spot beneath the telescope, watching his face eagerly. Harry pressed his eye to the telescope… and looked through.
He saw color.
There were purples. Oranges. Browns. And, of course, there was black. The blackest of blacks, making the perfect backdrop to the wonders painted against it. There were constellations of stars here, there, and over there as well. Aurora slid her fingers smoothly over the telescope, adjusting its angle to reveal more and more. Harry must've looked suitably impressed, because she was soon giggling giddily.
"Have you never seen space before?" she asked.
"I've used Muggle telescopes," Harry said. "They've got nothing on this, though. This is… It's…"
"Magic?"
"Yeah."
He'd actually researched astronomy over the summer, interested in the only subject Hogwarts shared with Muggle schools. The two had a lot of similarities, but they had their differences, too. You weren't liable to hear about the effects of moon phases on potion brewing in a Muggle university, for example. Enchantments also had the edge over technology when it came to equipment. Wizards knew of entire constellations that had so far escaped Muggle discovery, such as the Merperson, and the Thestral. Certainly Harry hadn't seen anything like this when playing around with Muggle telescopes.
"I'm starting to see why you spend so much time looking at the stars."
Everywhere he looked, he saw something new. It reminded him of a beautiful tapestry that, if you zoomed in, was made up of even more tapestries.
"I always describe myself as an amateur astronomer," Aurora said. "That never fails to confuse people. But you're always looking at the stars, they say, and you even teach about them! They think I should be an expert. Tell me, Harry, do you think anyone could ever know everything that's up there? Enough to be called an expert?"
"Probably not. But you're still an expert compared to most people."
"I want more," Aurora said hungrily.
Harry smiled. He could respect passion for one's discipline, and it was hard to deny that Aurora was as passionate about hers as anyone.
He leaned back, pulling away from the telescope.
"Done already?" Aurora asked. "I was still planning to show you more."
"I think there's something else I'd like to admire," Harry said.
Aurora averted her eyes, smiling softly. "I don't think I'm much to look at compared to all that."
"We won't know until we give it a try."
Harry's hand landed on hers, wrapping around it. Slowly, she squeezed his fingers back.
"We celebrated your way, and it was lovely," Harry said. "Now let's try celebrating my way."
He scooted back onto one of the cushions, pulling Aurora with him. She landed against his chest. Harry felt her warmth through her dress, his arms wrapping around her lower back.
"I was expecting to have had more wine before we got to this point," Aurora admitted.
"That can still happen." Harry squeezed her, smiling. "We don't have to rush."
"...that's quite alright," she whispered. "I don't really want to, well, wait, now that—"
Harry kissed her, putting an end to her rambling.
Aurora was more than ready for it. Her tongue breached his mouth in seconds, pushing against his own. He felt her hands flip around, her palms squeezing his chest. Her dress was silky to the touch as his hands slid over it, squeezing her body.
The kiss was rapidly growing wetter. Aurora turned her head to the side, sliding her tongue deeper into his mouth. Harry's hands moved down her back tentatively. When Aurora didn't object, they slid the last bit of the way down, grabbing her backside in a firm grip. Aurora moaned into his mouth.
If Madam Rosmerta's low-cut tops were a sexual awakening for half of Hogwarts boys, then Aurora Sinistra's rear end inspired the other half. It was so thick and bountiful that it managed to make professor robes look form-fitting. You could see its outline when she walked, to say nothing of when she bent over, should you be lucky enough to get a glimpse of that. It wasn't just the enormous size of her derrière, it was the way the cheeks stuck so far out from her body, carrying a perfect shape.
To tell the truth, even though he never took her class, Harry hadn't been ignorant of Professor Sinistra's sinful figure when he was a student. Doing what he was doing now had been the content of more than a few spicy dreams, ones that made him wrap his cock in his little hands and go to town when he awoke from them. So when he got the chance to grab the feature that drove him so crazy, he might have gotten a bit excited.
His fingers sunk in. He grabbed her, squeezing those cheeks, and twisted, kneading her flesh to a nearly violent degree. His hands steadied soon after, but the damage had been done. Aurora jerked her head back from their kiss, her eyelids fluttering.
"You're… stronger than I thought," she admitted breathlessly.
"I aim to surprise," Harry said.
His fingers were still squeezing her below the belt. Aurora slowly leaned back in, kissing him again, while Harry reciprocated. He was feeling a thrill now that he couldn't tamp down, having seen Aurora was just as aroused by his touches as he was from her body. It gave him the confidence to move his hands down to the back of her exposed, dark thighs, before slowly sliding them up.
He grabbed her again, but this time his hands had moved beneath her dress. Only thin panties were in his way, and after a bit of groping, he bypassed these too, slipping his hands under. Aurora's ass was warm and easy to grip.
Instead of breaking the kiss when he touched her, this time Aurora kissed him more forcefully. Harry captured her tongue against the top of his mouth, groping it much the way his hands were squeezing her backside. Aurora's hands slipped down along his body, moving from his chest to something lower that was prodding her through their clothes.
Soon, Harry's hands grabbed her panties again, this one sliding them down her thighs. Aurora's dress had already rolled up to her stomach. She was breathing heavily as lust overtook their senses, each of them ready to take things further.
With a good grip of her hips, Harry lifted Aurora up, setting her on her knees on the cushion he was leaning against. He slipped his head between her thighs, so that her panties — which he'd slid down to her knees — were against the back of his head.
He told her earlier that he enjoyed serving beauties. Now it was time to prove that.
Aurora didn't need to be told what to do. As soon as she was above him, she grabbed his hair with both fists and started to ride his face.
Harry could hear the stuffing flowing around inside the cushion as Aurora shifted her weight. She brought her hips up, then pushed them down, planting a different set of lips on Harry's. The bulbous skin outside her pussy was easily parted by his tongue, which slid inside of her with a quick thrust.
Aurora moaned loudly as Harry's tongue slipped across her folds. She lifted her hips up again, rising enough that his tongue slid out of her, before dropping hard enough to jolt Harry's head. Her whole body was grinding against him, his ears firmly covered by Aurora's dark thighs.
Harry's hands came up, clamping onto the ass he couldn't get enough, a clap ringing through the room when they made contact. Aurora moaned louder, grinding with even more force. The angle was awkward, so Harry had to focus his attacks. His tongue picked out her clit one moment, then scraped her g spot the next. He could always tell when he'd done well, because Aurora would drag his head tighter against her crotch by leveraging her grip on his hair.
"I'm… seeing stars again!" Aurora moaned as she grinded down.
Considering who was talking, Harry considered that high praise.
Aurora's body sank to the lowest it had been, pushing Harry's head deep into the cushion. He managed to dig his tongue deeper than it had been before, and rather than letting Aurora move her body up to get away, he pushed her down by the ass, trapping her.
"OhhhhHHHHH!" Aurora screamed.
A slick, sweet rush ran down Harry's tongue into his mouth. He relished the flavor, swishing it around his mouth before swallowing.
Aurora lost her balance. She tipped forward, throwing her arms out to keep from landing on her face. Harry slid out from under her, turning to face her.
Sinistra's knees were still on top of the cushion while her top half leaned off. Her thighs were shaking slightly, showing how she lost her balance. Harry had to stop and admire the dusky pussy his tongue had ravaged, which now gleamed with arousal.
Harry wrapped his hands around Aurora's broad hips, pulling her toward him. Her knees slid off the cushion, while her hands stayed on the other side, leaving her stomach propped on the large beanbag.
Harry's hands moved slowly up her body, picking out the zipper on the back of her red dress. He slid it down, doing so gradually enough that Sinistra could feel it clicking over each metal groove. She whimpered, wiggling her hips in anticipation.
When the zipper reached the bottom, Harry pulled off her dress, Aurora raising her legs when necessary. He unclasped her bra, letting the straps fall away so that her beautiful back was completely bare. For a moment, he pulled away.
Aurora didn't look, but she could hear the button of his pants pop, followed by the zipper descending. His coat swished as it was removed, followed by his shirt and pants. Each second allowed Aurora's anticipation to grow within the quiet room.
Harry was in no rush. He dropped onto his knees behind Aurora and reached out, feeling up her bum from the new angle. Aurora moaned. That might have been because of his stiff cock, the tip of which just happened to brush and poke her entrance.
Soon, Harry put a hand around his shaft, holding it still. He rubbed himself vertically along Aurora's slit.
"By Sagittarius, don't tease me!" Aurora said.
Chuckling, Harry slid himself inside.
Almost immediately he felt Aurora's body clamping down on him. It was a tight squeeze to fit himself inside, and without the orgasm brought on by his tongue, he likely wouldn't have managed it. Fortunately, he had the world's most alluring handlebars to help him.
Harry's fingers dug into Aurora's ass as they reaffirmed a tight grip. He had to pull her toward him in order to fit the last inch of his length, something that made Aurora yelp cutely when she was dragged back. Contact with Harry's groin made her cheeks swell and shake. Harry would never admit this to her, fearing she would take offense, but he found the jiggle of her ass even more amazing than the stars she showed him.
Harry started slow, delivering deliberate thrusts that struck Aurora deep inside. Each time his manhood moved through her, it was squeezed tighter, her folds constricting around him.
Over time, however, Harry was unable to hold back. He started to speed up — once he was sure Aurora could handle it — until the clashing of their bodies sounded like applause
"You're the biggest I've ever taken!" Aurora gasped.
"Aw, you're just saying that," Harry grunted.
"No! Any bigger… and I don't think it would fit!"
Harry was inclined to agree. When his whole dick was inside of her, it felt like his head was being crushed by her tight hole. He was starting to breathe hard— not so much from physical exertion, but from the strain of not busting to the feeling of Sinistra's ass.
The beanbag was acting like a shock absorber, holding Aurora's body still no matter how hard Harry crashed into the bottom of her thighs. Harry was gripping palm-fulls of ass, but so much more of it was jiggling around his hands.
"Can I hit it?" Harry asked.
"Do what you want," Aurora moaned.
Harry let go with one of his hands, holding his palm a few feet above Aurora. He hesitated for a minute… then brought it down, striking the middle of the cheek.
"Mm!" Sinistra's back straightened as she tossed her head back. A ripple motion spread briefly through her ass. If her skin was any lighter in color, Harry was sure a large pink mark would've been left in the shape of his hand.
Soon, he was intermixing such blows, landing one every few thrusts. And each time, Aurora would clamp down tighter. Her reactions reeked of a dry spell. There was a limit to how much social life a woman who slept all day and looked at the stars all night could have, and it couldn't leave much time for dating. Harry grabbed her cheeks again, mashing her body back as he delivered a final five, fierce thrusts.
Each one made Aurora moan louder than the one before it, until she was screaming by the final one. It was fortunate the Astronomy Tower was as isolated as it was.
"Make all the noise you want," Harry said. "I'm the only one who'll hear it, and it's music to my ears."
Aurora screamed louder. Harry felt her clamp down, cumming much harder than she had on his tongue. This time, Aurora's whole body flexed as she squirted on his manhood. Harry managed one more half-thrust before deciding things were getting dangerous.
He pulled out at the last second, just as an orgasm was spewing from his tip. It had plenty of volume, but he came too early for there to be much force behind it. his semen landed thickly along the cheeks Aurora's luscious ass. Even in the light of the stars, Harry could see the contrast between his cum and her skin, looking like the night sky itself.
Aurora looked back at him over her shoulder, a bit of hair plastered to her sweaty forehead.
"You're better at this than I expected," she panted.
"Like I said, I aim to surprise." Harry smiled at her. "Don't worry too much. You've got all year to get used to it after all."
Aurora shivered, picturing the spare nights the two of them were going to have.
"I'm not going to have as much time for stargazing, am I?" She sighed sadly. "I suppose some sacrifices must be made…"
Harry laughed, rolling her onto her stomach, thrusting into her again as she began to squeal. Despite her words, he could feel her limbs wrapping around him, pulling him close, and he knew she was just as excited as she was.
Perhaps they could trade. She could show him the positions of stars, and he could show her positions in bed.
Now that sounded worth missing sleep for.