A/N: Thanks so much for reading!

Warning, this chapter is explicit.

Chapter 15: Snape's Chambers Pt 2

Róisín made to place the cool glass of water against her burning cheeks, but instead took a sip, which turned into a gulp. Snape finished his own firewhiskey and banished their glasses. He stood and stepped towards her. Róisín got to her feet and Snape reached to rub the outside of her arms, which hung awkwardly at her sides. She winced at the memory of Eóghan doing the same actions months previously, on a windy autumn quidditch pitch. Snape halted his movement.

"I know you may find it unpleasant, but I can't proceed without touching you."

Róisín shook her head to free herself from the memory.

"Of course, sir."

"If you want me to stop, simply ask; it is not necessary to explode anything." His tone implied that this was not something he should have to explain.

He moved behind her. Her breath hitched as he brushed her hair away from the base of her neck, sending goose bumps down her back.

What should I do? Touch him back?

His hands grasped her waist. They felt large enough to encircle her completely and strong enough to squeeze her life away. He nudged her towards the bed. Before she could hoist herself up, he pivoted her and lifted her onto it. She lay back, her heart dancing to a symphony of fear and excitement, and her head just missed the pillows. Snape grabbed her around her ribs under her breasts, and hoisted her up so that her head rested on them, his forearms flexing with the effort. Róisín saw a black snake flickering on his arm, but when she peered closer it seemed insignificant and she looked away. He climbed onto the bed and watched her face as he ran his hands down her waist, her hips and her thighs. Róisín fixed her gaze on his chest. The butterflies in her stomach were gone, having been eaten by fearsome Namibian pixies that were ravaging her from the inside. Slowly, he moved the palm of his hand onto her jeans covering the mound of her pubis. She jerked slightly as her pelvic muscles fluttered. He rubbed his palm in small circles while applying a gentle pressure.

Oh God, if people knew Snape was touching me like this.

"Do you have any preferences?" His deep voice fuelled the pixies which had moved from her stomach to frolic near her groin. He spoke at a normal volume, but it struck her as loud, almost thundering, given that she and Eóghan had only ever whispered in these kinds of situations. That's because we were worried someone would hear us, or we would get caught. Snape is an adult; he doesn't worry about getting caught. Róisín had to remind herself that at eighteen, technically she was an adult as well.

"Em… you mean…."

"Is there anything in particular you would like me to do or not to do?"

Well, nothing I'm going to say out loud.

"Em… I don't think so."

Snape lifted his palm away from her and arched an eyebrow.

"You are saying there is nothing you would not like me to do?"

Róisín gulped.

"Em… well… I mean..." Her voice trailed away as her skin reddened. "Within reason," she added in a very small voice. Snape exhaled through his nose.

"What position would you prefer?"

"Whatever you would like sir-"

"-Don't," he spat. Róisín looked up sharply at his change in tone. His face, hidden in shadow, seemed too high above her, as if he had grown since climbing on the bed.

"Don't what sir?"

"Make this impossible for me, don't act so submissive and… afraid," he said through his teeth.

"But I am afraid." Róisín voice broke on her words.

"Is there something you are worried I will do, that frightens you, or is it just… my presence in general?" He sounded irritated that his presence was required at all.

Róisín didn't reply.

It's Professor Snape, you can't ignore him!

When Snape spoke again his voice had regained its cool composure,

"From my research, I am confident that for your condition to improve I only have to finish inside you, thereby soothing your entangled magic, any other act should not be necessary."

Róisín nodded in understanding.

"Therefore, in theory I could simply enter you now,"- Róisín's breath hitched- "and it could be over in minutes." He paused. "But I am worried that would cause you a large amount of discomfort, especially given that it's your first time." It was bizarre to hear him explain himself to her. "Also, I don't know if that would be defined as... consensual."

Róisín's chest tightened at the vulnerability hanging on his words. Her breathing grew shallow as she took in his tall, lean body overshadowing hers. His large hands were hovering just above her hips, as if he were afraid their weight would hurt her, or that he might have to catch her if she decided to flee.

"That's why I thought it best if I do this," he put his hand back on her mound and moved it downwards so that it covered her clothed labia. He pressed her lower lips together gently. His hand felt warm. And then it was gone.

"However, if you would prefer that I didn't then I can enter you now and attempt to be both gentle and quick-" His slight frown indicated that achieving both might be difficult. "- or you could make yourself climax and I could do it afterwards."

Róisín's eyes widened. "Sir, are you suggesting that I make myself... You mean... in front of you?"

"Well I could leave the room -"

"- Ok," Róisín blurted before his sarcasm had a chance to register. His presence was overwhelming and she was desperate for him to leave so she could catch her breath. She didn't even have to cum; she just needed a moment to absorb the situation. Then he would be content to have sex with her believing her to be ready and relaxed post-climax, and when it was over she could sprint back to her room in Ravenclaw tower and curl into a tiny ball in her bed.

Suddenly, he had the tip of his wand pressed against her chest. She froze.

"Pulsatio magna," he said clearly.

The double thump of Róisín's erratic heartbeat echoed through the room. Snape got off the bed.

"Why did-"

"So I know when you've finished." He glanced at a clock on the wall. "I'll be in my study," he muttered before leaving through the passageway they had come from.

Róisín was left alone with the sound of her heart beat thrumming through the room as though she was too near a speaker at a concert. She remembered reading somewhere that the heart beats fast during orgasm. Although she couldn't imagine it beating faster than it already was. Whether that's true or not he'll realise if I don't...

She tentatively lowered her hand as if she were shy in front of an audience. Relax, it's not like he's watching you. She whipped her head around, checking he had left the room. Just breathe Róisín! She felt exposed on top of the covers so she slipped beneath the thick duvet while undoing the button and zip of her jeans. She started to touch herself. Images from films and books along with her own memories tumbled through her mind, Matt Damon kissing his love interest in the Bourne Identity; a scene from the trashy novel she had hidden under her bed where the protagonist is pinned down by her ardent lover; that time in second year she saw an older male student change out of his quidditch shirt in the common room; Brad Pitt in fight club; a tall, raven-haired Slytherin leaning over her; an actress wrapping her legs around her lover as he lifted and pushed her against a wall; lying beneath Eóghan on his bed. No, don't think of Eóghan.

Róisín's jeans were constricting despite being undone and were causing her hand to cramp. She lifted her lower body up and shimmied them past her hips, along with her underwear. The sheets felt smooth and cool against the hot skin of her buttocks. She squeezed her eyes shut and tried to focus.

She thought about various things she had clandestinely "stumbled upon" watching late night television during her muggle summers; a man caressing a woman's curves and licking her nipples; the side view of a man's body undulating on top of a woman, his backside clenching with each thrust.

Her heart rate increased.

She remembered Snape leaning above her moments ago, his large hand touching her. She concentrated on the tightening in her centre and thought about what he was going to do to her...

Then she came, panting hard and shuddering, her heart beating frantically. As it slowed she realised she was covered in perspiration. Oh god, the sheets under me are probably damp. As she was about to accio her wand to dry them Snape entered the room. Róisín hastily grabbed her jeans and underwear which had gathered at her ankles beneath the covers and awkwardly pulled them up her legs. She heard her heart rate pick up again as she fumbled with her zip.

Snape watched her as if she were a rare and delicate creature he wanted to capture but didn't know how to without scaring it away.

"Are you ready?"

Róisín nodded. He stepped towards her and her heart pounded louder as if warning him to back off. He paused. Relief and – weirdly – disappointment surged through her as she thought he wouldn't go through with it, but he simply undid the pulsatio spell. Silence. Except for the little pops and snaps from the fire, the soft pat of his bare feet against the stone floor as he stepped towards her, undoing his trousers, the swoosh of the Great Lake from the other side of the glass, or was that the blood rushing through her head? The fall of his trousers onto the floor, the puff and huff of air entering and leaving her nostrils. It was the opposite of silence.

Cool air wafted in with Snape as he lifted the duvet and climbed on top of her, the bed sagging where he placed his knees on either side of her legs. She kept her gaze away as he pushed his boxers past his hips and she blushed at the immodest, muggle sound of her zip being undone by his hand. His thumbs brushed her skin as he placed them under the top rim of her jeans. His dark eyes met hers as he pushed her jeans past her hips and she lifted her lower body to accommodate him. Then he did the same with her underwear. She shivered. He gently pushed her thighs open and moved between them, lowering himself so that he was hovering on top of her with his elbows on either side of her head. His penis pressed against her thigh, warm and hard. Because of their considerable height difference the collar of his shirt was aligned with her eyes. His Adam's apple bobbed as he swallowed. A drip of sweat ran down his neck.

He leaned back onto his knees and raised his hands to the buttons of his shirt.

"Do you mind?"

Is he asking my permission to take off his shirt?

"Oh, no, of course not."

His shirt disappeared and Róisín saw his pale, toned torso before he leaned on top of her again. He smelt like male body wash with a trace of sweat.

He reached down and used his hand to guide himself to her opening. She could feel him there. So close and warm. He looked down at her shivering beneath him.

"Are you cold?"

"I'm fine."

"It should not be painful, if it is I will stop and we can try again." He cleared his throat. "It's a myth that the hymen needs to be "broken", it may tear a little the first time, but sometimes it doesn't hurt at all."

He was close enough that she could taste his breath; it was minty as if he'd just brushed his teeth.

"OK," Róisín whispered.

He began to push inside her slowly. Although she was wet from having orgasmed, it still felt painful, as though his penis were sharp. She grabbed the sheets with her fists and tried to hide her discomfort. The sensation was new to her. Whenever she wanted to get off by herself she touched her clit. She had never put her fingers inside herself, she didn't even use tampons.

"Are you OK?" Snape asked, his mouth tensed. Róisín realised her face was scrunched with pain. She attempted to school her features and met his gaze.

"Em…yea..yes." Her voice was strained. "Is em, is it…?" Snape looked at her quizzically. She felt flushed like a ripe tomato. She needed the pain to stop.

"S-sorry I mean, never mind."

His forehead creased in concern as he leaned backwards so he could look down at her.

"Are you in pain?"

Róisín ignored his question. It felt like his penis was burning her.

"Will it get worse?" she blurted out.

"Róisín, I'm barely inside you," Snape said incredulously. Her given name sounded weird on his lips.

Oh Merlin, I cannot do this.

He pulled out of her and she winced at the feeling. "Have you ever been penetrated at all?" he asked.

Her eyes prickled. "Em… I tried using a tampon once but it was too painful."

Snape exhaled loudly.

"Excellent," he bit out. "In that case, we'll have to start with something more basic."

Róisín, mortified, reflexively went to cover her face with her hands, but caught herself and put her hair behind her ears. Snape gently rubbed her clitoris before circling a finger around her opening and pressing in a little. Róisín's eyes widened as he lifted the finger to his mouth, placed his lips over it, and brought it back down to her. He stilled when he noticed her reaction. The movement had been natural to him, like a reflex. Did he just taste me?

"It'll be easier if my finger is wet," he explained, his voice low and husky. "I didn't mean to upset you."

Róisín lowered her gaze.

Snape slowly pushed his finger inside her. It stung a little but considerably less than his penis had. She could feel his gaze studying her intently, and she felt entirely exposed, as if he were reading her secrets aloud from her diary.

"Look at me."

The order made Róisín clench around his finger. In the dim light his iris and pupil moulded into one black circle.

"I need you to relax your muscles." He crafted each syllable carefully, as if she might not understand.

"They are relaxed."

"I can feel that they aren't." Róisín gasped as Snape curled his finger inside her to emphasis his point.

"Oh, em… I don't think I know how," she breathed.

He didn't respond and Róisín couldn't read his expression. Then he said quietly, "Take deep breaths and clear your mind."

Róisín closed her eyes and started breathing heavily. She didn't know how to clear her mind, so she tried not to focus on what was happening and instead thought about her transfiguration essay due next week. Eventually her body relaxed and she barely felt his finger inside her.

"Good"

Her eyes snapped open at the sound of his voice. He curled his finger against her front wall and began stroking slowly. The movement elicited a sweet ache inside her, but as she started to tense at the new sensation the lingering discomfort grew into pain again.

"Relax"

Róisín closed her eyes. Snape started moving his finger faster in a "come hither" movement. The stinging pain became overwhelmed by a sweet throbbing. Her mouth opened and her eyes squeezed shut. When his finger began to move faster she flung her hand between them and grabbed his wrist. Instantly, Snape ceased his movement but kept his finger deep inside her. Róisín thought she saw a dark shadow on his forearm but instantly forgot it. She released his wrist.

"Is it still painful?" His voice was husky.

"A little," she whispered.

"Do you want me to stop?"

Róisín gave a tiny nod. She winced at the unpleasant feeling of his finger leaving her.

"If you want me to stop in future it would be preferable for you to voice that desire rather than attempting to physically restrain me." Róisín winced again at his serious tone. "I don't want to misinterpret your actions."

Was that a threat? Her eyes opened and flickered back and forth between each of his.

"Why did you stop me?" he asked.

Typical Snape, interrogating even in bed, Róisín thought, however her insides warmed at the idea that he was concerned for her.

"I just felt emm… like I was losing control."

"So, you want to be in control."

"Em…" The one thing Róisín knew was that she did not want to take the initiative. "That's not what I meant sir. I would much prefer you in control… I mean…"

Snape leaned back onto his knees and rolled his shoulders, giving Róisín a view of his Apollo's belt, a delicious, sharply defined "V".The heat in her cheeks flared when she realised he probably thought she was appraising a lower part of his anatomy. She caught a glimpse of his member and redirected her eyes to study the canopy. He was still erect. She had no frame of reference for his size, but knowing what he was about to do with it made him seem large and intimidating.

"Why did you feel you were losing control?" he pressed.

"Em…"

"If you ask me to stop I will," he said as though it were a threat. Her insides warmed further.

"I… you were making me feel very… and I was…" Róisín spoke in a tiny voice. "…I couldn't control my reaction…"

Snape snorted. "Miss Feral, I may be able to get us through tonight without causing you significant pain, I will not be able to prevent you from feeling anything at all."

Róisín rubbed her hand across her face.

"Of course, sir, I'm being stupid."

Snape sighed. "If you wish to feel detached from the situation, close your eyes, think about things that make you feel calm, and relax,

"I'll try to get it over with as quickly as possible," he added in a mutter.

He aligned himself with her opening and pushed in slowly. She closed her eyes. He kept still inside her. A few seconds passed.

"Róisín, relax." His stern tone did nothing to help her. She opened her eyes to look at him. His were closed in a pained expression.

"Em… sir?"

"Yes"

"Is there something wrong?"

"Of course there is, everything about this is wrong." He sounded breathless. "The immediate problem, however, is that you are nervous, and tensed..." He looked away from her.

"Am I hurting you sir?"

He rolled his eyes. "Of course not, I just - you should not be in pain."

Róisín cringed. I am hopeless at everything. I can't even have sex. Even though apparently it's what I need to stay sane.

"I'm sorry sir. I really am. I can't "relax" any more, so just go ahead." Snape shifted his weight and raised his eyebrows at her. Róisín swallowed. "I just want this over so I can go back to my dormitory."

A flicker of frustration passed over his features.

"As you wish."

He began thrusting into her. Róisín's knuckles went white as she grabbed the sheets at her sides. It felt too intense, like staring at the sun. She clamped her mouth shut to prevent any whimpers escaping and focused on the strange contrast between the erotic feeling winding inside her, the sharp pain in her vagina and the delicate tickle of a tear on her cheek.

Snape lifted himself so that his weight was on his palms without interrupting his rhythm. Róisín looked down and saw he was holding back; only thrusting into her a few centimetres.

She felt the tear drip from her chin and land with a cold touch onto her collar bone.

Snape started breathing in short, sharp breaths as his pace increased. Róisín knew that he was trying to be gentle with her, but it still felt brutal and raw. She concentrated on the sight of his abdomen muscles rhythmically contracting and relaxing in time with his thrusts and ignored the sob welling in her throat.

She jerked in surprise as he dropped down onto his elbows and started thrusting quicker than before, in bursts of movement. He was heavy. His body felt unbearably warm and the friction of his stomach against the fabric of her t-shirt chafed her skin. She was trapped. Her breathing became frantic. His right hand reached down and grasped her left buttocks, changing the angle of penetration. She squirmed but he didn't seem to notice. He groaned as he gave a few final, deeper thrusts. Róisín felt him cum inside her. Then he stilled.

That's it. It's done.

He abruptly climbed off her. Róisín felt cold now that his warmth was gone. She heard him buckling his belt as she curled into a foetal position facing away from him, staring at the wall.

"I will get you some pain relief potion," he said.

She heard him leave and return moments later. He walked to where she was facing and held out two vials.

"This is the pain reliever and this is a contraceptive, drink both."

She sat up, feeling as though her limbs had grown heavier. She hastily pulled the duvet up to her middle when she noticed that her bottom half was still exposed. She took both vials and drank them, grimacing at the bitter taste.

Snape stared at her like she was a problem he had no desire to deal with. Róisín fixed her gaze at his shirtless chest, feeling too embarrassed and too impertinent to look him in the eye. Pale, raised scars criss-crossed his torso. How had she missed them before?

"I will leave you to dress," he muttered and strode into the passage that led to his study.

Róisín pulled on her underwear and jeans. She felt numb.

She hesitated at the door that led to the cupboard in his office, but decided it would be silly to knock when entering from his bed chambers, so she stepped inside.

Snape, now clothed, was sitting at his desk reading scrolls. He looked up as she entered but didn't acknowledge her.

Is he going to let me leave without saying anything? Am I going to leave without saying anything?

He sighed deeply and looked back down at his papers.

"Get some rest Miss Feral," he said dismissively.

"Yes, sir, em… thank you for…"

He raised his eyes to hers, as if daring her to say it.

"Em… good night, professor."

She left, closing the door softly behind her.

"Miss Feral"

Róisín had just closed Snape's office door when she heard him call after her. She considered fleeing and pretending she hadn't heard, but instead she steeled herself and reopened it.

"Have you finished your essay on the inter-species polyjuice variation?" His voice was gruff.

Róisín had completely forgotten about that essay. It was due tomorrow.

"Y-yes." She immediately averted her gaze. Why am I such a terrible liar.

"Finish it this weekend. I expect it on my desk Monday."

"Thank you, sir."

As Róisín hurried through the castle back to Ravenclaw tower, a thought unsettled her like the remnants of something too sickly-sweet in her stomach:

Snape never grants extensions. He must really pity me.