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The Poly Juice Escapade	By : kjaydeck3 Category: Harry Potter > Het - Male/Female Views: 2676 -:- Recommendations : 0 -:- Currently Reading : 0
Disclaimer: I do not own Harry Potter, nor any of the characters from the books or movies. I do not make any money from the writing of this story.

Chapter List
- 1-The Poly Juice Escapade
- 1
DISCLAIMER: I don't own any of these characters, blah blah, and am absolutely making no money off of this story. Sucks for me.

ARCHIVE: Ask and you shall receive.

The OC in this story was created by one of my very good friends and I wrote this story for her one day. She loves it and gave me permission to post it, so I went for it.

Mercy was slow to open her eyes once she woke, not sure what had interrupted her sleep. She listened for a long moment, knowing Snape was still in bed with her. She could feel the slight dip in the mattress that his weight caused, and she could hear his breathing. She furrowed her brow, noticing his breathing was a bit ragged.
Hearing him groan she spun around in the sheets, only half surprised to see the man propped up against his pillow with his legs drawn up under the sheets, and both hands clearly between his legs. She raised an intrigued eyebrow, amused that he didn’t notice she was awake. Albeit it was dark, and he didn’t have semi-feline vision.
“Couldn’t sleep?”
Snape practically jumped from the bed, face draining of color as it always did when he was embarrassed or angry. Currently it was mostly the former.
“M…Morrigan…” he barely managed her name, seeming to hold his breath a moment.
She allowed the slightest of smiles, sliding over under the sheets until her bare breast pressed against his arm and her hips settled next to his. She rested her hand on his thigh, glad to see his color was beginning to return.
“Didn’t want to wake me?” she asked, hand rubbing his thigh absently.
“I…hadn’t intended…to…” he said slowly.
She sat up, finding his hands and joining them as she leaned in for a brief kiss.
“Bored of me, Severus?” She teased, no real accusation in her voice. Though he was a bit too flustered to discern that.
“No, no-”
She caught him by the lower lip, nibbling on it lightly before initiating another kiss. One arm supported her weight and with her other hand she traced a line up his chest, pinching his right nipple as she began a more voracious kiss.
“Morrigan,” he managed to speak when they parted.
“Yes?” she purred, purple eyes watching his intently.
He blinked. Avoiding her gaze as he tried to find the right words. He glanced furtively at the clock across the room on the bookshelf.
“Frankly, Severus,” she continued the exchange herself, “I think you’re blowing things out of proportion…you’ve no reason to feel…uncomfortable.”
Snape blinked, pulling away slightly.
“I’m comfortable,” he frowned, glancing at the clock once more. “Look, Morrigan,” he continued, sliding out of the bed.
“Where are you going?” the woman frowned.
“I’ve got to get an early start on grading…I’ve been behind.”
Mercy frowned as she watched him disappear to bathe, biting the inside of her cheek until it bled. She tongued the torn flesh, feeling somewhat satisfied by the coppery taste of her own blood.
She glanced to the clock and lay back down, eventually calming enough to get her last two hours of sleep before she began preparing for the day’s lessons.

Mercy suppressed a frown as she took her seat in the Great Hall. It was dinner time now, and she and Snape had not seen, nor spoken to, one another since four o’clock that morning. He had never made it to the hall that morning for breakfast, and she had had to make good on her threat to keep a few delinquent Hufflepuffs through lunch.
So she was here taking her seat just as he made his entrance, he nodded slightly to her, but said nothing. And it was plainly obvious to the other professors that something was wrong. Wonderful, she sighed silently. I just love other people in my business.

The entire walk back to their chambers Snape kept his pace ten steps ahead of Mercy’s. She found him especially vexing when he did things like this.
He opened the door not stopping her from entering after him.
“Severus!” She growled, slamming the door shut behind them. Snape spun round, cloak billowing as he did so, and moved forward, taking her by the chin and backing her against the door. He leaned into her, hand moving over her breasts as he moved in for a forceful kiss. She, initially, had no objections, allowing his tongue past her lips to massage hers before she responded in kind. He trailed kisses along her jaw bone, moving to her earlobe, which he briefly nibbled on.
“Skipping the talk?” she asked dryly, not stopping him from sucking the flesh of her neck.
“We’ll talk when there’s something to talk about,” he spoke quietly, the deceptive calm of his voice hiding thick undercurrents of desire and a deep frustration. He leaned forward to kiss her again, but was stopped by her hand on his forearm.
“Severus,”
The man sighed, rolling his eyes, “Morrigan, I assure you nothing that concerns you, and nothing you should be concerned with, is wrong.”
Mercy eyed him skeptically, eyebrow raised as she kept her silence, hoping he would readdress the subject under pressure. He didn’t.
“Alright then,” she bowed her head slightly, looking at him from underneath her eyelids. She placed a hand in the center of his chest, sliding it over his shoulder and to the base of his skull, pulling him into a long, frenzied kiss. After a long moment she pulled away, stepping past him and reaching for the door.
“Where are you going?” he asked with a considerable frown.
“I’ve just remembered, I’ve some errands to attend to.”
Now Snape was the one wearing a skeptical expression, which quickly turned to a frown, “What sort of errands?”
Mercy tried not to smirk, a rare occurrence.
“Nothing that concerns you, Severus.”

Snape waited for her until half past midnight before he gave up and settled in to get to sleep. It frustrated him when she did things like this. It was usually near impossible to find her, unless she wanted him to. And he could only wonder as to where she was, and wonder doubly hard about what she was up to. Though he had a feeling he would find out with due time.

It wasn’t until the following evening that Snape saw the woman again, appropriately enough, right where she’d left him. He’d just turned from the door in his chambers when he heard it open again, and Mercy slipped in, cloak floating about her.
He raised both eyebrows, watching as she pushed her hood down around her shoulders.
“I was sufficiently embarrassed when Minerva asked if you were well, and why you hadn’t asked me to cover your classes,” he said.
She raised an eyebrow, head tilted slightly, but made no move to apologize. He didn’t expect her to, though. She cleared her throat.
“I know how you hate that kind of magic,”
It was true, charms and enchantments were not his favorite pastime, but more likely than not he would have been willing to cover any classes he could for her. And he doubted she’d neglected to ask him for his own well being.
He sighed softly, “Indeed.”
She moved to pass him, but he matched her, catching her by the chin to look in to her brilliant purple orbs. He was more than surprised by what he found, she didn’t seem at all angry with him, in fact all he could find in the curiously colored eyes was deep lust and desire for him.
She pulled back, removing her chin from him and blinking in a way that was wholly unlike her.
“Severus,” she said quietly, and the near whisper bothered him some. But when her expression shifted to her cool and smug self he dismissed it.
She shrugged off her cloak, stepping forward to slide a hand into the man’s hair and begin kissing him slowly on the mouth. She nipped tentatively at his lips until he let her in, hating him for being able to resist such actions, even if only momentarily. Their tongues writhed together a long moment, he rested a hand at the small of her back, and didn’t resist when she began to back him toward the bed. He felt the bed with the hand outstretched behind him, raising onto it fluidly, feeling her lift her skirt so it didn’t hinder her joining him atop the mattress.
He grunted feeling the swell of her breasts pressing into his chest, and cursed himself for occupying his arms in holding them up. Though he was partly relieved, he hated to contend with her various corsets and laced bodices in the heat of it, and hated that he could never remember that fact ahead of time.
Mercy worked on his buttons, biting hard on his lower lip until they could both taste the copper of his blood. This drew a soft noise from her, she had such a literal blood lust that Snape often felt faint after their longer nights together.
Mercy pulled back, carefully licking up the blood that had escaped his mouth, momentarily giving up on trying to remove his clothing. Snape took hold of her wrists, pushing her off himself, and repositioning atop her. With this done he reinitiated the kiss, hand sliding over the taut fabric of her accursed corset. He ran his fingers down the center of it, feeling the laces as he met her eyes. His lips trailed down over her neck, fingers gliding smoothly over the tops of her breasts. He paused his lavishing of her neck, repeating the motion with his fingers before slipping them between the cinched down breasts, which was a task indeed, and found a small velvet pouch had been tucked between them.
He sat up, turning it over in his hand. Easily deciding the contents where glass or in glass containers. He dangled it over her nose, questioning eyebrow raised.
“What might this be?”
“Oh,” she said slowly, feigning innocence, “something I picked up.”
She reached up to take it from him, but that was easily prevented.
“What is this Morrigan?” he asked again. When she simply shrugged in response he figured she intended him to know eventually, and undid the ribbon tentatively, then slowly slid the pouch’s contents into his palm. There were two glass phials, roughly the length of his pinky and a bit wider in circumference. They were filled with a horrid looking green fluid. Tilting them to see how the liquid moved, Snape could safely say it was Poly Juice, or some derivative of the transformation inducing potion. He met her eyes once more, feeling slightly annoyed that she hadn’t asked him, the bloody Potions Master, about this.
“So,” he began for her.
She raised an eyebrow, lips pressed thin.
“So,” she repeated, unaffected by him.
“Morrigan,” he hissed, impatience becoming clear, “what is the meaning of this? Where did you get this?”
Still not affected by his anger she rolled her eyes, scooping the containers from his outstretched palm.
“I know someone the other side of Hogsmead,” she said simply, raising to her elbows to better meet his eyes.
“Indeed,” was all Snape said, giving her the same look he would a student he expected to fess up.
“He-”
“He?” The man’s frown deepened.
“He,” Mercy repeated defiantly, “specializes in the…erotic arts.”
This wasn’t even in the spectrum of what he’d expected her to say, and he looked a bit more surprised than she’d expected him to.
“Er-erotic?” he practically choked on the word, and she had to work hard to suppress her amusement at this.
“Erotic,” she repeated emphatically, glint in her eyes.
He watched her a long moment, blinking a few times after he finally managed to grasp the idea, “What for? Ah, that is, what did you go there for?”
She furrowed her brow, not bothering to hide her amusement this time. She held the phials up for him to see once more.
“This, of course, Severus.”
He exhaled, eyeing the liquid then the woman beneath him.
“Yes, I gathered that much, Morrigan. I think you are quite aware of what my question is.”
“Indeed,” she said with the slightest of smiles pulling at her plump lips.
Snape only raised an eyebrow, making it very clear that he was not amused in the least.
Mercy sighed, eyes rolling as she did.
“Well, Severus, I thought a bit of variety in the bedroom wouldn’t hurt either of us.”
“That would depend entirely on who you intend me to turn into,” he answered quickly, more than skeptical about the idea.
Mercy narrowed her eyes, giving him a look that he expected was usually received by her more doltish students.
“Me, Severus. Who do you think I’d want you turning into-”
“Don’t even joke about such a thing,” he cut her off, knowing where her perverse thoughts were going.
“I don’t know what you’re getting at,” she said softly.
Snape raised an eyebrow, letting it go as he pondered the use of magic in their sex life. Albeit there were a few incantations they made frequent use of, it had never occurred to him to use potions. Well, not never.
“And you’d be…me, then?”
“Who else?” she asked expectantly.
She watched him ponder this silently, taking the time to mumble a simple spell that deteriorated her corset’s lace. This seemed to help Snape along.
“I don’t know.”
“Come now, Severus. You’re secure enough in your masculinity to be a woman for an hour or so.”
He arched an eyebrow, wondering if she knew how utterly ridiculous a sentence that was.
“Maybe so,” he responded softly, rather sure that wasn’t the part that made him the most uncomfortable.
She caught him by the collar, pulling him down into an intensely heated kiss, using this opportunity to roll him onto his back, knee planted firmly between his thighs as she deepened the kiss, tongue pushing at the torn flesh in his mouth until it began to bleed once more. He pulled back with a muffled protest, not sure how many more times he could handle her bleeding him from the lip, not to mention have her agitate the same wound.
“Alright,” he said quickly making it clear he was surrendering. Mercy had a way about her that seemed to ensure she got her what she wanted.

Snape stepped out of the wash room to see Mercy seated, completely nude, in the center of the bed. He hated this, she’d undoubtedly been there trying to find the perfect position to get him as he walked out, and despite the unpleasant looking knife by her side, she’d had him hard at a mere glance.
Mercy watched as Snape joined her on the bed, smugness twisting her lips as he settled across from her. She met his eyes briefly before taking the oddly decorated knife into her left hand. She made sure he was still watching, touching it lightly to her wrist before lifting it back up, and running her tongue along its length. Snape groaned.
Quickly deciding she was done toying with him, she brought the knife to the inside of her arm, pressing so the flesh around the weapon went white, and she pulled diagonally until a line of blood appeared where the knife had been. She lay the knife aside, moving toward Snape for a long kiss on the mouth before she placed her hand at the base of his skull, and coaxed him to lap at her open wound. He was tentative about it, not usually the one to taste the blood, and he almost spit when she nipped his ear and whispered to him.
“Don’t swallow.”
She smiled, taking his arm as she lifted the knife once more, making sure he knew what was coming. She brought the knife to his arm, and repeated the motions she’d used to cut herself. He flinched slightly, watching intently as she licked up his blood, doing his best to ignore how she swirled her tongue.
She sat back up, wiping the corner of her mouth carefully before she pried the stopper from one of the phials. She brought it to her lips then threw her head backward as if she were drinking a shot of liquor. He took the other phial in his hand, repeating her motions to the best of his ability.
Mercy started toward him, then decided not to move, waiting patiently for the potion to take its effect.
It was just over a minute later when Snape began to see the changes in Mercy, and only a few moments later when he could feel his own. He watched, more than a bit perturbed but still fascinated, as her breasts shrank toward her chest until it was flat as a boy’s, then it began to resemble the chest he was accustomed to seeing in the mirror. It was hard to take in all the changes at once, but he still caught some things; like the way her hands grew, starting at the fingertips and finishing at the wrists. Her shoulders broadened and the curve from her chest to her hips becoming a more even line. Her expression, hard to read while it was a muddle of both their features, must have been amused as she spread her legs apart so she could better view her genitals going from female to male. She seemed much more intrigued with the process than Snape did.
Despite the fact that he’d watched her go through most of the transformation, he was still shocked when he looked down on a pair of breasts, and even more shocked when he realized he could feel them. He leaned forward a bit, experimentally, watching them sway.
He heard a male grunt, undoubtedly what he sounded like when he did so, and looked up to see Mercy--even though she looked like him he could sill see her. In the eyes, her expression, even how she held her body. His body. She sat on her knees, legs parted slightly as she eyed the erection that had sprouted from her lap.
He felt his breath catch as he watched her, a tingling sensation building between his legs.
Mercy glanced to Snape, who now looked like her, then experimentally brought a hand to the erection that was usually his. She touched the tip tentatively, pushing at it the way that always made him vocal. She choked on the ensuing groan, surprised to have a voice that wasn’t hers.
She looked to see Snape’s reaction, and was amused to see him looking as hot and bothered as if he’d just shared the sensation with her. She bit back a smirk, leaning forward to rest on her hands and knees, and she imagined she would find it a very provocative position for Snape to be in. But he was never so playful.
Snape sat there, not sure what to make of the sight before him, partly wishing he had some time to explore this body in private. But Mercy seemed determined to start things now.
Mercy took him by the shoulders, pushing him onto his back and positioning herself above him. He inhaled sharply, surprised when she moved to kiss him. At first he found being so small awkward, but he quite enjoyed it before the kiss was even done. He found himself reaching for the erection that pressed into his stomach, continuously amazed by the feeling of female arousal.
Snape found he was disappointed when she didn’t grind out another moan, but was quickly distracted as she trailed her lips over his left breast. She nipped at the nipple, tonguing it briefly before she drew it into her mouth.
Snape gasped. The sensation was a familiar one, and one he rather liked. But it felt entirely different with a breast.
“Morrigan,” he gasped, arching toward her mouth, and further excited by the desperation in his borrowed voice.
Mercy smiled, pulling back to watch his face as she slipped one hand between his legs, she fumbled a bit due to their increased size, but easily found the wet nub of his clit.
The first face he made was one of confusion, like he didn’t know the anatomy of the female reproductive organs. This thought alone made Mercy want to laugh out loud. The next face she got out of him was that of a desperately aroused virgin discovering herself. This made her want to laugh as well. But it also reminded her of the erection she was contending with.
She watched, pleased with herself and entertained, as he shuddered and gasped at the sensations completely unknown to the male sex. She continued to push and stroke, watching his face contort with pleasure and loving the desperate noises that she herself seldom made.
“Morrigan,” he gasped desperately as she slowed her pace, gripping her arm tightly to urge her on. He squirmed compulsively, raising his hips to improve upon her motions, and she went on that way for some time.
Mercy leaned over him, lower lip brushing against his ear as she paused the motions of her hand.
“Severus,” she drawled, but still managed to sound plenty condescending. And from the slight whimper he let out she guessed he rather liked it.
“Severus…you sound like a filthy whore.”
Snape moaned at this, and again as Mercy’s tongue filled his mouth, feeling his insides beginning to contract with orgasm. He squirmed furiously at her continuous stimulation, bucking against her hand as he whimpered breathlessly, and he continued to writhe as she induced another.
Snape breathed heavily, opening his eyes as Mercy’s mouth left his. He watched her, surprised by how quickly the euphoria left him, and even more so that it was replaced with a rekindled feeling of arousal. And as his mind continued to clear he began to wonder desperately how Mercy hadn’t wanked herself to death while playing with him, because he would have had the situation been reversed. Or had they been themselves.
He felt he got part of the answer when their eyes met. Her eyes were wild with heat, and she held his gaze effortlessly as she brought the fingers that had been inside him to her mouth, and proceeded to suck them clean.
Snape whimpered desperately, shutting his eyes to block the lurid display and a bit surprised when he felt the male hand on his shoulder urging him to roll onto his stomach. He was hesitant for a long moment but easily complied. He held his breath as he felt her climb on top of him, erection pressing hard against his ass as she leaned to nip at his earlobe. He felt himself breathing heavier as she began tracing his neck with her tongue, hand winding into his raven hair as she began to suck and nip.
He mumbled something, pathetically incoherent as he pushed his hips away from the mattress. Mercy groaned at this, tongue flicking his earlobe teasingly, and he found himself wishing that she’d treated his clit that way.
“What?” She’d intended to mock him further, but found herself too out of breath for additional words.
“Please,” he begged, fists tangled in the sheets as he pushed against her again.
Mercy would have laughed if she wasn’t so painfully aroused and so desire driven.
She raised up, pulling him to his hands and knees as she responded, equally difficult to understand, but the gist was quite clear. She nudged his right knee over a bit, fingers moving along his opening experimentally. He was wet and swollen with arousal, moaning desperately through the duration of the contact.
“Morrigan,” he hissed sounding amazingly like himself despite the feminine voice. It seemed that as long as he was more desperate that she was, she could control her desires a bit longer.
She positioned herself behind him, bringing her arousal to rest at his opening, fingers finding his hair once more as she slowly, easily slid into him.
“Oh god,” he moaned deeply, glad that she gave him a moment before she tried to find a rhythm. Though he supposed she needed it as well. He whimpered once more, feeling himself contract around her.
Mercy groaned, fingers tightening in his hair and arm straining to keep from collapsing on him as she bit at his neck. She forced an exhale, almost completely withdrawing before pushing back into him. She repeated this a few times, fighting the urges his cries brought, before she found a pace she could manage. Every thrust elicited another cry or moan from him, and she found herself pulling at his hair. She didn’t even know how hard she’d bitten him until she tasted blood at her lips, and felt it dribbling down her chin.
Mercy licked her lips hungrily, head swimming as she increased her pace. Faster. Harder. She pounded into him, somewhere in the back of her mind noting how similar an aching cock and an aching clit felt.
She kept at it, slightly annoyed that she could still register Snape’s muddled noises. They sounded like mangled sobs now, and even though the small rational part of her that still existed was worried she might hurt him, the noises only made her want to hurt him. She pulled his hair harder, wrenching his head to the side as she loosed a guttural groan, recognizing the feeling of inevitable orgasm. And as usual the choices were presented. Stop and let it happen, or keep going and make it happen. She got about three more good, hard, thrusts in before his spasms pulled her over the edge.
Mercy could feel him still squirming underneath her, breath shallow and ragged as his hands finally relaxed in the piles of bedding. She pushed the hair over his shoulder, lips touching the back of his neck lightly before feeling herself drift off.

When Mercy awoke she was indeed still pressed against Snape’s back, but they were no longer sweat slicked and she could feel the defined mound of her breasts between her chest and his body. She could tell he was already awake by his breathing, and was amused that he’d made a point not to disturb her. She raised up, moving to lay next to him. She knew she hadn’t been asleep very long, otherwise she wouldn’t be experiencing the grogginess. She had been told what to expect after reversion.
“Well,” she managed to say after a few moments of silence, “It’s a good thing our chambers aren’t near anyone else’s.”
Snape turned to face her, expression difficult to read.
“Oh?” was all he said.
“They might think me to be a routine screamer,” she said, unable to keep the corners of her mouth from forming a smile.
Snape paled a bit, embarrassed.
Mercy stifled a yawn, realizing as she fought to keep her eyes opened, that she’d never felt so sated before.
“I didn’t hurt you…did I?” she couldn’t keep from yawning this time.
Snape rubbed his neck absently where she’d made him bleed, and she noticed an odd look in his eyes.
“Not at all.”
“Good,” she said softly, thumb moving over his jaw bone. She smiled lightly, not feeling like she could do much else.
After a minute or so she slipped off the bed, pulling back the mussed sheets and climbing back into the bed.
“You’re getting to sleep already?” He asked.
She arched an eyebrow at him, beginning to nod before she realized he was laying there completely hard. Her eyes widened with her surprise, and her cheeks started to feel warm.
“Oh,” she said dumbly, blinking.
After a few moments, that felt like an eternity to them both, she lay back down, rolling onto her side so that her back faced him, and it was rather clear that all she wished to do was sleep.
“Morrigan?” he asked, not entirely sure what her wishes were.
“Severus,” she said languidly, glancing at him over her shoulder with a glint in her eye, “Just make sure you don’t wake me this time.”

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The Poly Juice Escapade