Thanks for sticking with me so far! As always, I do not own these characters. This chapter will give you a taste of the things to come. Please remember this is rated M.

SHP

Snape had seen the blonde Ravenclaw leaving the castle grounds and disappearing into the Forbidden Forest. When she hadn't returned by the early evening, he went in search for her, telling himself it was to punish her. She was out of bounds – the forest was forbidden for a reason. Truth be told, it didn't surprise Snape one bit that of all the students, the Lovegood girl would disappear into the trees. Nonetheless, she'd broken school rules and needed to face the consequences. But when he finally came across her, Snape momentarily lost his train of thought.

Luna was laying in clearing, a threstral napping near her head and a few more standing peacefully at the tree line. Her golden hair was fanned out like a halo around her delicate face and the late afternoon sun made her look even more beautiful than the moonlight had. She didn't look at all like a student should. Instead, she looked very much like a grown woman.

Clenching his jaw and silently berating himself for losing his focus, he stepped into the clearing. The threstral perked its ears at him but otherwise didn't move. "I trust you have a good excuse for being in the Forbidden Forest alone, Miss Lovegood. Serving detention perhaps?" Snape hissed.

Luna's eyes opened slowly and she turned her head toward him, a smile already forming on her lips. "Oh no, professor. I've come to see the threstrals. We're friends, you know." Her blue eyes glittered as she stared at him.

"Let's go Miss Lovegood. It's almost time for supper and I don't have all evening," Snape snapped.

Luna rose and Snape couldn't help but stare at her easy, unhurried movement as she bent over to pick up her discarded jacket and canvas bag. Her jeans, which has been enchanted to show ever growing and changing flowers and vines, stretched over her round bottom and Snape felt his irritation rise.

"You really shouldn't be out wandering alone. All manner of things can happen to a young girl in these woods," he growled.

Luna turned to him with a raised eyebrow and Snape realized her thin, lace camisole was almost see-through in the fading light. "Is that so, Professor?" she asked softly.

Was that flirtation in her voice? Snape stalked forward until he was just in front of her. "Indeed, Miss Lovegood. It's very easy to stumble across an especially dangerous snake. Snakes that would love to devour an eaglet that has fallen from the nest," he answered in a low hiss.

He watched in fascination as her cheeks flushed and her breathing hitched. Standing this close, Snape could smell her – a combination of lilac and lemon. An innocent scent to match an innocent girl. The urge to touch her, to taste her suddenly overwhelmed him.

"Why don't you tell me what kind of snakes to look out for," she whispered, her blue eyes darting to his lips and then back up again.

Damn, Snape thought as he realized his resolve not to touch this particular temptation was crumbling. With a frustrated snarl, Snape grabbed Luna by her throat. He didn't squeeze but instead he pulled her forward ever so slightly, rubbing his thumb over her soft, pink lips. Her eyes were wide and questioning but there was no fear in them. Her skin was soft and warm beneath his hand. Her pulse fluttered wildly against his fingers.

"Why tell you, when I can show you?"

Snape pulled Luna into a crushing kiss. He was surprised when Luna returned the kiss without hesitation. Her mouth opened to him and he eased his tongue into her warmth. A small moan escaped her as he pressed harder against her petite body. He could feel her small breasts rubbing against the harsh wool coat he wore. When she reached for him, he caught her wrists and pulled her arms behind her back, holding them there with one hand.

Luna whimpered into his mouth as he rubbed a hand up her side, his thumb brushing against a hard nipple. Snape kissed her jaw, down her neck, and across the plane of her shoulder. She gasped when he nipped her collar bone before returning to her mouth for another kiss.

Sweet Circe, she's delicious, he thought.

Suddenly, Snape wrenched himself from her. What had he been thinking?! He couldn't be caught fondling a student in the Forbidden Forest! He shoved Luna away and took a step back for good measure.

The two stared at each other. Snape noticed the flush of Luna's cheeks, the way her breasts heaved, and the fullness of her lips and immediately wanted to pull her to him again. Horrified by this thought, he turned away and began striding back toward the castle, trying not to care if Luna followed.

A moment later, he heard her footsteps behind him. "Professor, wait," she called.

Snape didn't slow down. "What is it Miss Lovegood?" he snapped.

She managed to catch up to him although she had to trot to keep up with his long stride. "Well… We just…" she stammered.

"I know what we just did Miss Lovegood," Snape growled, whirling on her. "You must never speak of that. It was a mistake. One I will not be repeating and if I even hear the faintest whisper of a rumor, I will destroy you. Is that understood?" he spoke slowly, menacingly, grabbing her by the arms and giving her a hard shake.

"I would never say anything. I know what it would mean," Luna replied, as serene as ever, unconcerned by the harsh grip he had on her arms. "It was nice Professor Snape."

Snape released her and clenched his fists at his sides in an effort to keep his hands to himself. "You're a child. I should never have touched you. It will not happen again."

Disappointment filled her large eyes. "I see," she said softly. "Thank you all the same. It was a lovely kiss. I'll see you in class."

With that Luna moved around him and walked back toward the castle. Snape watched her go with an odd feeling of relief and regret. He could tell by the way his lips still burned and his cock still pulsed, that kissing Luna Lovegood would not be something he soon forgot.

Luna could not sleep that night. Her body refused to forget the dark professor's kiss and still ached for his touch. The evening passed in a blur after her return to the castle. She felt too flushed, to stimulated to rest. Slipping a hand beneath the waistband of her pajama pants she began rubbing at the ache between her legs.

Luna wasn't completely naïve when it came to anatomy and biology. She knew the fundamentals of sex, she'd masturbated a handful of times, but the intensity of this need was different. Her body didn't just crave release, it wanted to be filled.

Closing her eyes, she replayed the kiss again. Professor Snape's threats had aroused her and when he had gripped her throat she knew he was going to kiss her. Luna had harbored a crush on the professor for some time, even though she knew he was terribly unpopular with the other students and most of the faculty. She'd imagined kissing him plenty but the real thing left her breathless and wanting.

Her fingers parted her damp folds and jiggled the little button of her clit. He'd been so intense. His black eyes had fixed into hers as if he could read every thought. He had wanted to devour her. Luna wanted to let him. She bit her lip to stop the low moans of pleasure from escaping as thoughts of a simple kiss brought her closer to orgasm. Her nipples were hard and sharp as she remembered the way they'd rubbed against his chest.

Finally, as she remembered the way his thumb had brushed the tip of her nipple, she came, whimpering softly into her pillow as the pleasure rolled over her. It was only when her body was spent that she drifted into sleep.

While Luna played with herself, her mind filled with thoughts of her professor, Snape struggled to push thoughts of Luna from his own head.

He was angry with himself. Horrified that he had been so stupid, so careless to cross such a line with a student. A student eighteen years his junior! Worse, they'd been in the Forbidden Forest where anyone or anything could have spotted them.

It didn't matter that Luna was beautiful with her golden hair, porcelain skin, and endless blue eyes. The fact that he'd been so blinded by lust filled him with an odd sense of shame. She was so young; he'd had her in his class since she was eleven. It made him feel perverted.

Dirty.

Like a monster.

Yet, she had kissed him back. She was seventeen now. Luna had been kind to him always, even when the other students had hated and feared him. She was still kind to him despite her new friendship with Potter and his lot. Was he so desperate for a human connection that all it took was a bit of kindness for Snape to fall prey to the basest of temptations? The idea filled him with disgust and added another layer of self-loathing to his already plentiful supply.

Snape knew he shouldn't cross that line again. If he was in such desperate need of relief, there were a few discreet witches in Knockturn Alley he'd visited through the years. They would take his potions in exchange for sex, no names and no questions asked. But the thought of not kissing Luna Lovegood again filled him with an unfamiliar sense of regret and he wasn't sure he would be able to resist if the opportunity presented itself again.