Author's Note:

I wasn't planning on writing anything else for Halloween, I don't know how this happened.

I've actually had ideas for a Shamy werewolf au for a while now, but I always imagined it being a multi-chapter fic. And I still want to do that, but I had this idea and it seemed like fun so I ran with it. At some point I'll probably work on something longer to add more context, but for right now we'll just skip to the good stuff.

My beta reader Stark said this was a bit OOC and he's probably right, but I decided I don't care. Posting it anyway. Have fun! Happy Halloween!


Before the Transformation Takes


"Focus."

Amy groaned loudly as she kept moving above her boyfriend, her body tight as a coiled spring. He was buried to the hilt inside her, hitting spots she could never reach on her own and making stars burst behind closed eyelids. Her clawed hands landed on his chest and dug in.

"Amy, focus," Sheldon repeated, ignoring the slight pain she was causing. The sensation of her slick walls quivering around his length made it easier.

"Trying," she said through sharp, gritted teeth.

"Amy, look at me," he requested. It took her a moment, but she tilted her head back down towards him and opened her eyes, which glowed in the filtered, full-moon light.

"I'm so deep inside you," he kept talking. "Do you feel that?"

"Yes," she hissed out. Her movements on top of him became slightly erratic, and in the dim light he could see soft fur sprouting along her shoulders and down the center of her chest, blending with her long hair trailing down her body.

In moments like this, he was always struck by the thought that he should be terrified. It was, after all, an incredibly vulnerable position to be in, naked and aroused and pinned down by his girlfriend who was midway through transforming into an apex predator. But sex had a funny way of numbing his more negative emotions like that. Fear, disgust, shame, all these feelings sloughed off as they worked together towards this one common goal.

Even without the sex, though, he had surprised both Amy and himself by taking her lycanthropy diagnosis in stride. When she had finally revealed the secret part of herself to him, it was clear that she thought it would bother him, maybe even be a deal-breaker for their relationship, but he never once felt that way. Mostly, he just kept thinking of Werewolf by Night, the Astounding Wolf-Man, and Wolfsbane from the X-Men. His girlfriend was basically a superhero and he had a chance to be by her side while they unlocked all her powers.

That was when the experimenting began.

They started with simple things, testing to see if certain foods, scents, or locations could help her control the transformation, or even stave it off completely. When none of those seemed to yield any results, they took to more extreme measures. And as he had observed once in Leonard and Penny's relationship years ago, sex was proving to be a highly effective motivator.

"Stay with me, Amy," he said, sensing that her control was slipping. He felt a soft brush of fur from what could only be her newly-formed tail on the sensitive skin of his inner thighs, and he involuntarily bucked roughly up into her, losing some control himself. She yelped in response.

"Sheldon!"

He moaned and let his hands wander over her body, feeling the contrasts. She was still mostly smooth skin, but he found himself running his fingers along a line of fur moving down her spine, ending with the tail he felt just moments earlier. He wrapped his hand around it and gave it a small tug, making her cry out. Her inner muscles clamped down on him in retaliation, eliciting a gasp from him.

"Careful," he warned. "If you keep doing that I won't last, and we have a lot of moonlight left."

"You intend to do this all night?" she asked between panting breaths. Her movements slowed down a bit, turning to a steady, rhythmic rocking. His hips moved in time with hers.

"I have nothing else on my schedule."

They were lucky, really, that there was a certain level of predictability inherent in her condition. It was easy enough for him to add an extra "date night" every month to their Relationship Agreement and, aside from some raised eyebrows over how late they seemed to stay out, their friends were none the wiser. Which was good, because he didn't know how he would explain this to them, not just the fact that Amy was a werewolf but how it had effectively jumpstarted their physical relationship as well. It wasn't something either of them felt like sharing right now. It was too special.

Amy smiled before leaning down to press a kiss to his lips, which he eagerly accepted. It was sweet at first but quickly turned heated and sloppy as they kept moving together. He could feel with his tongue that she was growing in fangs, and a dangerous thrill traveled through his body. One hand moved to the back of her head to hold her in place, brushing over her velvety ear along the way.

"Your change is progressing, Amy," he said, speaking against her mouth. "You have to concentrate."

"I can't," she whimpered. "You feel so good."

"You feel good too," he confessed. "Good lord, Amy . . ."

Despite what he had said earlier, he knew he could only drag this out so long. The tension between them was at an insane level already, and they were due to burst at any moment. Still, he tried to keep going.

"Mmmgh, Sheldon . . ."

His hands were moving again, stroking all the way from up her thighs, across her stomach, to grasp her breasts, which were still full, round, and human. He rolled her nipples under his thumbs and relished the mewling sounds she made.

Amy drew herself back up and resumed riding him in earnest, and he noted that despite the more vigorous motions, her changes seemed to be slowing again. She was suspended there, somewhere between beauty and beast. He continued his ministrations and thrust up to meet her, occasional groans slipping from his throat. She really was magnificent like this, drenched in reflected light, filled with strength and power and him. This lovely, exotic creature he got to share a bed with every month.

"Oh, Amy . . ." he moaned.

"I'm close," she told him. Her legs trembled against his sides as she rose and fell, straining to keep the same momentum.

This was the unpredictable part. Every time they'd had intercourse thus far, achieving orgasm made her control slip significantly. This time, though, Sheldon had his own hypothesis he wanted to test.

"It's okay," he said.

"But you said—"

He cut her off by cupping the side of her face, locking eyes with her.

"It's okay," he repeated. "I love you. You can let go now."

She threw her head back and howled as she came. He could feel her walls pulsing around him and it only took a few more hard thrusts before he was there as well, releasing himself deep inside her, his mind going blissfully blank for a few seconds so all he knew was pleasure.

As Sheldon came back to his senses, she collapsed in his arms with an almost violent shudder, trying to catch her breath. While he tried to do the same, he idly ran his hand down her back and realized she had reverted back to her normal self.

"Fascinating."

"Hmm?" Amy lifted her head up to look at him. He shifted so they could lay side by side together but kept his arms around her.

"I think we have our results for this latest experiment," he said. "Would you like to hear my conclusion?"

"Yes, please," she said, snuggling a little closer, their legs intertwining.

"Drawing from the data gathered in our previous experiments as well as tonight, I think we can conclude that while coitus certainly helps in delaying your transformation, it's not the key to stopping or reversing it."

"It's not?"

"No," he said. "Based on tonight, I'd say it's love that makes you human."

Amy leaned up to capture his lips in a new kiss, soft but fierce.

"I love you too," she told him when she broke away, settling back against his chest.

"Of course you do," he spoke into her hair.

"And can I tell you my conclusion?"

"What is that?"

"That under the full moon, you turn into a hippie," she teased him. He pulled away just enough so he could see her grinning face.

"Yes, well . . ." He rubbed the back of his neck, searching his brain for a retort, but apparently it was too flooded with oxytocin to function properly just yet. "I hope this will be another thing that stays between us," he finally said.

"Of course," she said, curling herself back up in his embrace. "And anyway, we'll need to replicate our findings before finalizing any conclusions."

Behind the bedroom window, the moon was still potent and bright. Was their love enough to keep her like this, human, until morning? Sheldon intended to find out.

"Your scientific rigor is impressive as always," he told her, drawing infinity symbols with one finger between her shoulder blades. "And lucky for us, the night is still young."


Quick housekeeping note:

I'm planning on unofficially participating in NaNoWriMo next month and I want to work on a new shamy fic for at least most of it. Updates on my other fics may be on hold for the duration. Or maybe not, we'll see how it goes. Follow me on tumblr fort-cozy-mcblanket for progress posts and unhinged Shamy thoughts.

Stay excellent!