Mass Hysteria.

“If you’ve been following the instructions in your books,” Professor Sharp called out, “your potions should start turning pink as you stir it. Once it’s the right shade you may place the final ingredient in.”

Y/N watched in fascination as the contents of her cauldron began to change colour with every clockwise rotation of her wand. Although she had now been attending Hogwarts for two years, magic never failed to amaze her. She couldn’t believe she had gone the majority of her life not knowing it existed. The colour eventually shifted to the pale pink that Professor Sharp had spoken about and Y/N added the crushed moonstone and watched it take on a pearlescent sheen. 

“Ten points to Slytherin, Miss Y/L/N. Would you care to share with the class?” Sharp loomed over her shoulder, peering into her cauldron. Y/N watched as the class looked over curiously and caught Sebastian’s eye. He raised an eyebrow, clearly impressed with her, and looked down at her potion as if to say well, go on then. She leant forward to smell the contents of the cauldron, trying to decipher the scents coming from in front of her. Petrichor, wildflowers and…oh. Y/N blinked and leant back so she could pick up the coffee beans Sharp had left on each station so they had a palate cleanser. After a quick smell of the bitter grounds she turned to her cauldron again. Oh.

“Well?” Imelda asked her.

“If it’s all the same, Professor. I’d rather not,” Y/N muttered, her face flaming. The class broke into a chorus of whispers, all trying to guess what scent had turned the Hero of Hogwarts a pretty shade of pink. Although it was hidden well, Y/N watched as Sharp’s mouth twitched up in amusement before he moved on from her.

“What did you smell?” Imelda whispered to her. Y/N shook her head, her heart thundering in her chest. She couldn’t tell anyone she had smelled Sebastian’s smoky cologne, the one that seemed to stick to him all day even though he barely used it. Imelda looked between Y/N’s red face and her cauldron before looking across the station to Sebastian and a knowing smirk fell on her features. “Sebastian…” Y/N shot her a warning look, which Imelda pointedly ignored. “What do you smell?”

“Nice try, Imelda,” he chuckled and stirred his own potion. “I’m not falling for that.”

“You’re both no fun.”

“Just because yours is probably something predictable like broom polish doesn’t mean we’re not fun for not wanting to share,” Y/N shot. Imelda let out a laugh and patted her friend’s hand. 

“Careful there Y/L/N, I’ve still got some cards up my sleeve for you.”

“You wouldn’t dare,” Y/N glared at the girl next to her, stomach churning nervously. Imelda just grinned at her before adding her own crushed moonstone to her cauldron, signalling the end of the conversation. Y/N was vaguely aware of Sebastian watching them curiously from across the potions station and turned to face the raven-haired girl next to her, clutching the sleeve of her robes. “Imelda.”

“Calm down,” she laughed quietly and leant in so no one else could hear. “Your not-so-secret crush on Sallow is safe with me. I actually quite enjoy watching you two act like you don’t have feelings for each other.” With a wave of her wand, Imelda tidied her potions station and left the class swiftly, just as the bell rang outside. Y/N cursed the day she met the girl, and more specifically, became friends with her after completing all of her stupid broom trials, and quickly cleaned her own station before leaving the classroom. It wasn’t until she was halfway to the Great Hall for dinner that she realised what Imelda had implied with her parting words. 

Sebastian couldn’t have feelings for me, she wondered, chewing on her bottom lip thoughtfully, could he? No, that’s ridiculous, she shook her head to rid herself of the assumption.

“Careful, Y/N,” a hand grabbed the back of her robes and gently tugged her back a couple of steps before she could fall off the Grand Staircase. “You’re usually more aware than this, where did you go?” Sebastian looked concerned and pulled her away from a crowd of students that was walking their way. Y/N looked up at him, craning her neck more than she used to when they met in fifth year. Sometime in the summer between fifth and sixth year Sebastian had really come into his own. He had always been attractive, but somewhere along the way, without her really noticing, he had suddenly shot up and filled out. The jumper he wore to fight the perpetual chill in the dungeons did little to cover up the muscle that had seemingly appeared out of nowhere. 

“Dinner, I’m starving,” she lied, freeing her robes from his grasp so she could continue to walk towards the Great Hall. “How’s Ominis? I haven’t heard from him much since he went on his unsanctioned visit to see Anne.” Although he grumbled like he was annoyed, Y/N knew deep down Sebastian was a little pleased that his best friend and sister had finally started to court a few months ago. Apparently watching Ominis pretend he hadn’t been in love with her since they were children was sickening to say the least. 

Y/N was relieved when Anne reached out to Sebastian at the beginning of their final year at Hogwarts and extended an olive branch. She watched as Sebastian had read the initial letter, a wide smile on his face and unshed tears in his eyes before he brandished the piece of parchment at her excitedly. The twins weren’t as close as they used to be, but they were slowly mending the bridge that had burned down with their Uncle’s untimely death. 

“Where do you keep going? What are you thinking about?” Sebastian asked her. His hand came out to smooth the crease in between her eyes, lingering for a moment before he pulled away. 

“You.”

“Oh really?” he arched an eyebrow, a sly smile falling on his lips. “Is this where you finally admit I’m the most handsome student at Hogwarts?”

“I thought you had three years worth of self-imposed trophies to say just that.”

“Yes, but none of those mean anything without your agreement.” Something danced behind Sebastian’s eyes, a look Y/N couldn’t quite decipher. She was used to his charming nature and the confidence he seemed to exude, but every so often he said something and paired it with a look that was different. He looked…uncertain? Hopeful, maybe. 

“I didn’t realise my opinions held so much weight for you.” 

“And here I thought it was obvious that I hold you in the highest regard.” The air around them changed. Y/N couldn’t pinpoint it exactly - it wasn’t tense, but she felt a palpable shift in energy. She looked away from him and hoped he couldn’t see the blush that she felt rise to her cheeks as she walked into the Great Hall and made her way to the Slytherin table. She found Poppy seated with Imelda, heads bent together as they chatted quietly. They looked up as Sebastian and Y/N sat down, and a downright devilish grin was plastered on Imelda’s face. 

“The rumours about what you can smell in Amortentia and refused to share in class are already circling.”

“Don’t start,” Y/N groaned as Sebastian filled her plate with food. 

“The majority seem to think you can smell something that relates to Sebastian or Ominis,” Poppy added.

“Ominis?” Sebastian stopped filling Y/N’s glass with pumpkin juice, his tone incredulous. “That is the most ridiculous thing I have ever heard.”

“How would you know?” Imelda shot at him. “Has Y/N told you what she could smell?”

“This whole conversation is ridiculous,” Y/N cut in, rolling her eyes. She grabbed the large bowl of mashed potatoes and spooned some onto Sebastian’s plate. 

“It’s not that bad, Y/N,” Poppy gave her a reassuring smile. “I think it’s sweet. What you can actually smell, that is.” Y/N paused, the piece of chicken intended for Sebastian’s plate wobbling precariously on the serving spoon.

“How do you know what she can smell?” Sebastian looked up at her sharply, though there was no malice in his voice.

“Imelda told me.”

“Imelda,” Y/N hissed at the girl across the table from her at the same time Sebastian gave her a reproachful look. 

“You told Imelda?”

“I didn’t tell her anything,” Y/N protested. She sighed and pinched the bridge of her nose in frustration. She could hear a few of her classmates around them mutter about her, all supplying options for what she could smell in the love potion. “I think I’m going to grab something from the kitchens instead,” Y/N stood and quickly made her way out of the hall before any of them could follow her. The moment Y/N was out of earshot Imelda leant across the table to hit Sebastian across the back of his head.

“Ow,” he rubbed his head and gave the raven-haired girl a disapproving glare, “what was that for?”

“You’re an absolute idiot, Sebastian Sallow.”

“Imelda…” Poppy nudged the girl gently before offering Sebastian a sympathetic smile. “What she means is - ”

“Oh, I have no doubt she meant it.” Later Sebastian would vehemently deny to anyone that he was pouting like a scolded child after being accosted by Imelda Reyes, but at that current moment all he could do was sulk as he pushed some peas around his plate. 

“I did,” Imelda offered him a saccharine smile and shrugged unapologetically at Poppy, who looked disappointed at the pair. “If you don’t go after what you want, Sallow, others are going to take it from you.”

“Y/N isn’t some belonging that people can just have, least of all me. She’s a person with her own thoughts and feelings.”

“Who said I was talking about Y/N?” Sebastian’s head shot up to meet Imelda’s self-satisfied smirk and let out a low groan. “My point is,” she continued as he (rather dramatically, Imelda thought) lay his head down to rest on the table, “you’re in Slytherin. We’re ambitious to a fault, and when we know what we want we strive to achieve and obtain it. What’s stopping you from going after Y/N?”

“We’re just friends.” The lie Sebastian muttered on a daily basis felt thin to even his ears, and clearly neither Imelda or Poppy was impressed either. 

“Why could you smell her in the Amortentia then?” Poppy asked.

“How did you know I - oh. I’m impressed, Sweeting. That was very Slytherin of you,” Sebastian laughed and shook his head in disbelief. “What would you both have me say then? Y/N I’ve been in love with you since fifth year when we fought a troll together in Hogsmeade?” he asked rhetorically. If his face wasn’t red with embarrassment before, it was now as the words slipped out of his mouth. “I don’t - I mean, I do? I think. I didn’t mean - ” His stammers were interrupted by Poppy’s quiet laugh. 

“Oh Sebastian, you don’t need a pair of working eyes to know that you’re in love with Y/N Y/L/N. I think the only person oblivious to your feelings is Y/N herself.”

“What if she doesn’t feel the same? What if I ruin our friendship?” he asked quietly. The girls shared a look, and if Sebastian would have looked at either of them he would have noticed a silent conversation happening between the pair.

“Okay, look. I told Y/N I wasn’t going to tell you this, but you’re behaving like a lovesick second year and it’s making me sick,” Imelda flicked a pea at Sebastian in disdain. “Now, I can’t confirm it, but I strongly suspect that her Amortentia did smell of you.” Sebastian gave her a disbelieving look and sent the pea back across the table at her. “I agree that it lacks proof, but I do happen to know for a fact that she does have feelings for you. She told me herself.”

“She what?” That caught Sebastian’s attention, and that of a few people around them as well. Imelda shot them all a glare and they quickly turned back to their own conversations.

“If you tell her I told you I will hunt you down like the animal you are and use you as target practice for the beaters. I know where you sleep, Sallow.”

“She…” Sebastian was at a loss for words as he looked at Poppy for confirmation, who nodded uncertainly in agreement. “I need to go speak to her,” he muttered, more to himself than the girls in front of him. He continued to murmur quietly to himself as he hauled himself up and out of the Great Hall, his expression wavering between surprise and bliss as he left.

“When did Y/N tell you she liked Sebastian?” Poppy asked once he had left.

“Oh, she didn’t. But I think we can both agree neither of them was going to do anything without a nudge, don’t you? Could you pass the pumpkin juice?”

*

Y/N let out a quiet sigh as she snuck back into the Slytherin Common Room. It was nearing midnight, and although she wanted nothing more than to fall into her bed she trudged through the silent room instead to sit and wait for Sebastian by the fireplace. After leaving the Great Hall, Y/N had trekked her way up to the Room of Requirement to spend some time taking care of the various magical beasts in her vivarium. The animals couldn’t pester her like people did, asking her questions she didn’t want to answer, and worst, ones she didn’t have the answers to. She couldn’t understand why everyone was pushing their way into her business; why did it matter what (or who, she thought dryly) she could smell in the Amortentia? So what if she could smell Sebastian, and who was Imelda freaking Reyes to tell her she had feelings for her best friend.

Well, Y/N chewed on her lower lip as she stared into the dying embers, he was rather handsome. Something he would take great satisfaction in if she admitted it out loud. And she supposed, if she was really thinking about it, he was quite funny, and charming, and smart, and possibly the kindest person she knew, and - oh Merlin, she had feelings for Sebastian Sallow. 

He was her best friend, and hadn’t her aunt always told her those made for the best life partners? Not someone who you just existed with, but someone who knew you, knew every part of you, and would still stand by you. Not that she was thinking about spending the rest of her life with him. Y/N felt a blush rise to her cheeks as an unwarranted image of her in a white dress and Sebastian looking absolutely striking in a suit came to mind. 

“Penny for your thoughts?” A low voice startled her, and Y/N pressed a hand to her chest as she took note of Sebastian sitting in the armchair next to her. He bit his lip in amusement at her shock, but was smart enough to keep his comments to himself.

“How long have you been sitting there?”

“Long enough to watch you groan to yourself twice and turn the most enticing shade of pink,” he teased. “Where do you keep going today?”he asked, a hint of concern in his eyes.

“I’ve just had a lot on my mind.”

“Anything I can help with?” Sebastian offered. Yes, Y/N thought to herself, you can start by bathing in bubotuber pus.

“I’ll be fine, Sebastian. There’s no need to fret.”

“You battle trolls for fun, I think there is some need to fret.”

“You’ve battled more than one troll with me, too.”

“Ah, but there’s the obvious difference. You don’t worry for me the same way.”

“You can’t mean that,” Y/N sat upright in her chair, a withering glare on her features. “Of course I worry about you, you idiot.”

“Why is everyone calling me an idiot tonight?”

“Clearly it’s warranted,” Y/N sniffed in annoyance and sank back down into her seat. How dare he say she didn’t worry for him, all she’s done for the past two years was worry about him.

Sebastian could tell he had said the wrong thing. He knew - of course he knew - that she worried and cared for him. No one else would have witnessed and experienced everything they had together in their fifth year and still stood by him afterwards. It was never a question to Y/N whether he needed forgiving. Even Ominis, who had been with him since before he could remember, needed a while to come back around and speak to Sebastian again, but she didn’t. Granted, it had taken a couple of weeks as things had happened in quick succession, from the death of his uncle, to fighting Harlow, then Rookwood, to finally defeating Ranrok; but there Y/N was, sitting next to him at Professor Fig’s memorial, silent tears running down her face as she clutched his hand tightly for comfort. 

“I apologise,” he reached out to take her hand. “It seems I’m not quite done putting my foot in my mouth whenever you’re around.”

“Yes, it seems so.” Her words were flat, but she squeezed his hand back gently to let him know all was forgiven. Sebastian had the overwhelming urge to take Y/N into his arms and never let go, but also reprimand her at the same time. She was always the first to call him out when he was being a prat - which, he admitted to himself, happened more often than not - but she always forgave him for it moments later.

He took a moment to watch as she stared into the flames once more. His eyes roamed over her features, from her brilliant eyes, down the slope of her nose and rested on her mouth. Y/N could give any Ravenclaw a run for their money with the amount of wit she fired, and even though Sebastian was often on the receiving end, he loved it. He loved the way she rolled her eyes at him when she shot a particularly sarcastic or dry comment his way; he loved when she teased him and made him question his sanity and oh, he adored it when she would shoot him a rare, flirtatious comment.

He loved her.

The thought took his breath from him. He had said it out loud in the Great Hall earlier, but it was unintentional, and he wasn’t quite sure of it then, but now…now he was sure. He was in love with her. Every part. He wanted to share every day, every night, every moment with her. 

“You’re staring.”

“You’re beautiful,” he replied without thinking. He watched as a faint blush dusted Y/N’s cheeks and his heart stuttered in his chest. How could he ever doubt how he felt for her? “What did you smell in the Amortentia?” Sebastian asked, a sudden surge of confidence hitting him.

“Sebastian,” Y/N sighed heavily, “I don’t want to talk about it.” Y/N turned to look at him, a pleading look on her face. She was tired, so tired, at having to pretend she wasn’t irrevocably head over heels for the man next to her. She feared if he asked her any more questions he would see straight through her, and then their friendship would be ruined and he would want nothing more to do with her. No, the logical part of her brain replied, Sebastian is too nice for that. Instead he would let her down gently, with the soft tone one would reserve for an injured animal or a sick child.

“I could smell you,” he blurted out. Y/N blinked once, not quite sure she had heard him properly, before looking over at him slowly. “Your perfume, to be more specific. And the smell of rain, from the night we danced out in it. Also those strawberry tarts you love to eat at breakfast.” He stood from his seat before sinking to his feet so he could kneel in front of her on the stone floor. “All I could smell was you.”

“Sebastian…”

“What did you smell?” he asked her again, a hint of desperation in his eyes. She thought there was nothing more between them but friendship, that he could never look at her the way she wanted him t, but the look in his eyes right now…Merlin, how could she ever think that? Her heart pounded in her chest as she looked down at him and watched as his hands came to rest on her knees gently. She could feel the heat of his skin through the material of her trousers and all she could think of was more. She wanted more. “Darling? I’m putting my heart on the line here.”

“It was you,” she whispered after a moment, afraid to say it much louder. “You, when we danced in the rain. You, when you showed me the clearing full of wildflowers. Just…you. It was all you, Sebastian.” She met his gaze, her eyes shining with unshed tears. “It’s always been you, I just didn’t realise it until lately.”

“You’re supposed to be the smart one,” he teased lightly. He raised his hand to wipe away a stray tear, his thumb stroking her cheek gently. “Why are you crying?”

“I…” Y/N let out a sound that was between a sob and a chuckle and slid down so she was kneeling on the floor with Sebastian. “I think I was too scared to tell you before, so I pretended like it didn’t exist. These feelings have been bottled up for so long, only to be let out now…” she wiped away her own tears this time and offered him a rueful smile. 

“Oh darling,” he murmured, pressing a gentle kiss to her forehead, “it seems we’ve both been a little slow, hm? How could you not see I’m hopelessly head over heels for you?” He rested his forehead on hers, watching with slight satisfaction as her eyes fluttered closed in anticipation and longing. “You have been, and always will be, my one and only.”

“You’re going to make me cry again,” Y/N protested weakly. Sebastian chuckled quietly and brushed a stray hair from her eyes. He watched as the wheels turned in her head, and knew she was deep in thought when she started to chew on her lower lip thoughtfully. 

“Come back to me, what are you thinking?”

“It’s highly improper.”

“My favourite,” he smiled crookedly and ran his thumb across her lower lip. “Tell me.” Instead,  after a brief moment of hesitation, Y/N closed the gap between them and pressed her lips to his gently. She pulled away all too soon for Sebastian’s liking, her eyes darting across his face for any reaction he disapproved of - or worst, didn’t enjoy - their chaste kiss. He pulled her back in slowly, giving her more than enough time to pull away should she choose to do so, and pressed his lips back to her sweetly.