AN: You guys are seriously amazing! I really appreciate all of the support for this story and the response to last chapter was phenomenal! I hope this one doesn't disappoint.

Chapter 14

Missy Cooper adjusted the straps of her backpack as she walked to baggage claim, her stomach churning with anxiety. Moving in with her brother may not be ideal, but moving far, far away from Texas remained the only solution that she could figure out. It had been a few years since she had seen Sheldon. He had come to Texas for their father's funeral but since then, her mother mostly visited California to see him because he always offered to pay for her flight. She didn't mind so much. Her feelings for her brother were complicated, at best, and they hadn't had a close bond since he left for college at eleven. She really didn't know what would be in store for her living with him. They hadn't done so since they were children and now as adults in their late twenties, she knew they had grown up to become very different people.

She turned her phone off as soon as she walked through the doors of the Houston airport that morning, making sure no one would try to stop her. She had a good feeling though that despite not informing him that her plane landed on time, Sheldon would be waiting for her. Sure enough, as she descended the escalator, she noticed him in the crowd, standing out like a sore thumb wearing his khaki jacket and matching pants. A shorter man with black framed glasses stood next to him, uncomfortably shifting his eyes around. She determined this must be Shelly's roommate, Leonard.

It didn't take long for Sheldon to notice her staring at him. Even from across the room, he could feel her eyes fixed in his direction. Though disarming, it didn't surprise her how he immediately swooped his gaze towards her, their father's eyes staring back at each other. Their facial expressions didn't change to acknowledge the other but both of them communicated an unspoken message.

Once Missy reached their general vicinity, she changed her demeanor, donning a smile as she advanced towards her brother and his roommate. Leonard raised his eyebrows as the tall, beautiful woman approached them.

"Hi, Shelly," she waved at him.

"Missy," Sheldon nodded his head in reply. "This is my roommate, Leonard."

Leonard reached out his hand unable to tear his eyes away from her. Shaking his hand, she said, "Charmed."

Leonard smiled shyly at the soft twang of her southern accent.

Never one for niceties, Sheldon resumed to business, "How many bags did you check?"

"Two," Missy clipped back. "I packed all of my things this morning and only brought what was necessary."

Sheldon nodded his head, "I purchased you two temporary storage units that fit in my closet and cleared out two drawers in my bedroom for you to use. But otherwise, you'll need to live out of your suitcases."

Missy waved him off, "That's fine. You didn't even have to do all that."

Leonard cleared his throat, pulling both of their attentions to him, "So, um, Missy? How was your flight?"

"Oh, fine," Missy smiled. "I don't fly very often and fortunately, nothing too dramatic happened."

"If it had, we would have known. I subscribed to your flight itinerary for both text and email alerts," Sheldon explained.

The conveyer belt lurched and one by one the checked baggage circled out to the waiting passengers. They stepped forward with everyone else, and Missy kept her eyes trained to search for her luggage.

After a long, awkward silence, Leonard grew uncomfortable.

"So, Missy, Sheldon never really mentioned having a sister before," he blabbed.

This didn't surprise Missy in the slightest. Most of her acquaintances didn't know she had a brother either. Well, another brother.

"That's alright," Missy heaved one of her suitcases off the belt as Sheldon grabbed the other. "There isn't all that much to mention."

The ride back to the apartment passed by fairly quickly. Missy turned on her phone seeing that she had twenty missed calls from her boyfriend and two from her mother. She deleted them and didn't bother listening to the voicemails or checking her text messages. A new tension unraveled from her shoulders as she took in the clean, sunny appearance of California.

Lugging two, large suitcases up three flights of stairs proved to be troublesome. She let Sheldon and Leonard tackle one since she couldn't wait around for them to argue about the "physics" of getting both of the suitcases up the stairs in the most efficient manner. Missy figured it would be most efficient to just haul the damn things already, but then again, she wasn't a rocket scientist.

Once inside, Missy marveled at the cleanliness and order of Sheldon's apartment, but her fascination was interrupted by sheets of paper being shoved in her face.

"This is the temporary Roommate Agreement I have written for your stay. Look it over and sign where I've tagged the pages."

Missy flipped through the document. It looked like a whole lot of rambling using bigger words than necessary. She began signing her name but Sheldon quickly halted her.

"You didn't even read it!"

"I can figure out pretty much what it says," she rolled her eyes and continued signing.

Sheldon crossed his arms, but Leonard stepped in before he launched into a rant. "Basically you can't use the bathroom from 7:15-7:45 because that is Sheldon's designated bathroom time. Keep the noise to a minimum after 10:00pm. And don't bring any guests over without a 24 hour notice beforehand."

"And you must request permission before entering my room," Sheldon added. "People can't –"

"Yeah, yeah, I remember how particular you are about your room, Shelly. We did share one for years, remember?"

"Yes," Sheldon crossed his arms. "And I specifically remember you disregarding the regulations I put in place then, especially the boundary I drew between our sides."

Missy's phone chirped and she pulled it out of her pocket. It was her neighbor, Suzy, letting her know her mother had officially lost it, calling on the Holy Spirit to find her baby.

"I gotta call Mama, Shelly," she searched her contacts for her mother's number. "We'll talk about it later."

Sheldon turned his nose up, keeping his feet planted on the floor, "Is there any particular reason you asked me not to inform our mother of your stay here? You know I don't like keeping secrets."

Missy sighed, "I'm gonna tell her now. I just needed to get out of Texas without anyone stopping me."

Penny wasn't sure why it surprised her that Sheldon showed up for his Tuesday hamburger like every other week. She expected a possible deviation in the schedule because of his sister's arrival, but this was Sheldon. Figures he wouldn't even bend for family.

She watched in curiosity as the hostess seated the three at the table. She studied Missy for a second, surprised at how she didn't meet her expectations of what a sister of Sheldon's would be like. Again, she wasn't exactly sure what to expect, but definitely not someone who looked completely normal. Sheldon was so strange and extraordinary in so many ways that she imagined he had to come from an equally strange family. But Missy looked completely ordinary, wearing jeans and a cute purple top. She saw the family resemblance immediately between the two siblings. Wearing heels, Missy stood just an inch shorter than Sheldon. She felt a little bad for Leonard in that moment because he looked almost comical walking next to them.

She approached the table with a smile, focusing her eyes on Missy.

"Hi guys," she chirped. "Are you going to introduce me, Sheldon?"

Missy turned her eyes up at the perky blonde in the yellow uniform. It reminded her of her job at Fuddrucker's and that she'd probably never see that final paycheck.

"Penny, this is my sister, Missy. Missy, this is my neighbor and Tuesday waitress, Penny," Sheldon returned his eyes to the menu.

Penny pursed her lips at him, shooting him a pointed glare, "I'm also his friend."

Missy turned an eyebrow up at the weird exchange but shrugged it off and greeted the woman, "It's nice to meet you. I guess I'll be your neighbor too for the time being."

"Well, if you need anything, just ask," Penny offered.

"We need some service, if you don't mind," Sheldon cleared his throat.

"Yeah, yeah, you want a lemonade, and Leonard wants a Diet Pepsi," Penny rolled her eyes. She noticed Leonard's far away gaze as he stared at Missy. "What can I get for you, Missy?"

"Oh, I'll just have a water."

Penny left to put their drink orders in the computer. Missy's eyes followed her and then looked back to her brother suspiciously.

Leonard made several attempts to engage Missy in conversation about her life back in Texas, which was the last thing that she wanted to discuss. She humored him, spinning him charming tales scattered with over exaggerations for comedy and under exaggerations to play down the drama. For the most part, Sheldon stayed quiet, his eyes following Penny around the restaurant as she rotated through her tables. Missy took notice of this, cataloging for later discussion with her brother. The thing that intrigued her more than seeing her brother act strangely normal about a pretty girl was the way that Penny would lean her body towards him anytime she approached the table. While Missy understood Sheldon had a kind of handsomeness to him that intrigued a lot of women (such as her friends on the rare occasions when he would come home to visit while they were teenagers), she knew that once he opened that mouth of his, he blew any chances he had if he cared to have them. Not only did it seem that he cared in this case, but this woman more than understood the big bag of crazy that came with interacting with her brother, and if anything, it seemed that she actually liked it.

Sheldon found today's dinner conversation dull and annoying. Without Wolowitz or Koothrappali around to engage him in hypothetical quandaries about their favorite superheroes or discuss the likelihood of the Higgs Boson particle being discovered, he was forced to listen to Leonard's feeble attempts to flirt with his sister. Though he severely doubted that either of them would prove much help in this situation what with Raj struck dumb in the presence of a woman and Wolowitz's inability to think without his penis.

He settled for watching Penny. He did this often when he came to the restaurant. The way she moved around fluidly and consistently from table to table fascinated and calmed him all at once. She moved to an internal clock that he assumed she was not aware of. Running on intuition, Penny didn't plan her days meticulously and seemed to embody the phrase "fly by the seat of your pants". But there was an order and logic to the way she waitressed. He watched as she cordially smiled and joked with the customers. She seemed to be able to remember complicated orders, and he hadn't seen her slip up yet. She took charge when other servers were having issues, and he noted that she always maintained a clean distance between herself and the food. Sheldon could tell that Penny was the best choice for his waitress every week, not just because he was her friend.

Today, however, keeping a watchful eye on Penny was not the serene experience as usual. Once she put their food orders in, a group of young, rowdy men were seated in her section, and he noticed that they were treating her rather rudely. He knew that men, especially in groups, gave into social dominance hierarchy and egged on the alpha to pursue women who seemed sexually available (or didn't which isn't a concern for these Neanderthals). One of the men in particular focused his attentions on Penny, and anytime she came around he would lean in closely to her in a way that made Sheldon grip his fists together beneath the table. Worst though, he noticed Penny laughing a little too much at their jokes and swatting her hand playfully at the group. He suddenly lost his appetite for his barbecue burger.

It did not go unnoticed by Missy that her brother developed a jealous fascination with Penny and the table of frat boys. She noted the tell-tale signs of his anger: the hard strain of his clenched jaw, his white knuckles, and the subtle twitch of his left eye. Of course, her brother probably didn't understand that flirting customers might be Penny's best tips for the night. Her analysis of this new development continued to be interrupted by Leonard who asked far too many questions for her liking.

Sheldon likened this slow-burning anger building inside of him to the feelings he had when Leonard tried postulating a future relationship with Penny. It occurred to him in that moment as he kept a watchful eye on the lecherous way that the group of men pointed at Penny's backside, that the loose boundaries surrounding their engagement left him feeling unsure of whether or not Penny would pursue relationships with other men. Though he laughed at the idea of her accepting a date proposal from Leonard, it wasn't forbidden under their non-contractual arrangement for her to do so. And for all he knew, she could very well appreciate the attentions of these uncouth males and their vulgar displays of affection towards her.

Penny circled around her tables again, dropping off food at one and returning a check to another. She decided to make a quick check up on Sheldon's table.

"How's the food, guys?"

"Lovely," Missy smiled at her. "Thank you, Penny."

"Leonard?"

Leonard jolted in his spot, realizing he had been staring at Missy and didn't notice Penny's approach. "Oh, what? Oh, right the food. It's great. Thanks Penny."

Penny eyed Leonard knowingly. She briefly wondered if his crush on her would dissipate now that he had someone else to distract him.

"Sheldon? You usually have something snarky to add," his silence did not go unnoticed by her.

Having barely eaten his burger, he readjusted himself and picked up the sandwich, "Satisfactory."

Anxiety crept up Penny's spine at the coldness in Sheldon's tone. He had barely made eye contact with her since they were seated, and she noticed his usual relentless chatter and attempts to engage her in the table's conversation were absent today.

Penny left with a frown to take the order of Table 5.

"Have you fellas figured out what you want, yet?" She asked, knowing that her smile came off as phony.

Sheldon watched closely as Penny approached that table. The flirty flare that she brought had disappeared, and now she held the notepad close to her face as she took down the groups' order. Before turning to leave, the alpha male who had been eyeing her the entire time with a predatory glare reached out for her. Sheldon's stomach twisted as the man's ran his hand down Penny's backside.

Penny froze in shock as the one particularly zealous man at the table touched her ass and squeezed her right cheek. This wasn't the first time someone tried to cop a feel on her before. It happens more than most waitresses like to admit. Though it became something she learned to swallow while on the job, it still didn't stop the embarrassment and disgust that ran through her every time.

"Excuse you," she jerked out of his extended grasp.

"Ah, honey, why you gotta be like that?"

Anger and humiliation colored her cheeks, "I'll put this order in for you."

An urge for violence overcame Sheldon as his fists shook beneath the table. He wanted to march over to them and defend Penny's honor. If a fight escalated because of it, the testosterone and adrenaline pumping through his veins in this moment would allow him to fight back rather than cower (he handled most of his physical encounters in life this way). The only logic holding him in his seat was the initial agreement to keep their secret. He scanned his eyes to his sister and Leonard who were still engaged in cordial but stunted conversation; neither seemed to have witnessed the molestation of Penny or her hurried departure from the table.

Sheldon silently stewed in his seat, positive that not even chamomile tea could quell the rage he felt in his heart.

Sleep evaded Sheldon that night as he tried to settle his mind from the day's events. Since the moment his head hit the pillow, his mind rambled with the possibilities of Penny being wooed by another man. Though he understood due to Penny's embarrassed expression and handing the offending table off to a male waiter that she in no way was interested in inappropriate, groping men, the possibility still remained that suitors would approach her and he had no claim over Penny's fidelity. It occurred to him that the terms to 'friends with benefits' explicitly implied the ability to engage in sexual relations with another person as seen fit by either party. For all he knew, Penny very well could have engaged in coitus with any number of males without his knowledge. The idea churned his stomach and soured his throat.

He remembered that man's hands running across her bottom. A place where his own hands had grasped as she moved her hips above him, finding her own release from his deep penetration. A place where he watched water trail down her bare skin as he spread soap suds across her back. The idea of another man touching her in that way unsettled him on a disturbing, profound level. He didn't like the idea of thinking of another person belonging to him. On one hand, he understood Penny to be her own, autonomous person. Her independence, especially considering the menial, minimum wage job she has, impressed him, especially after seeing his mother and sister struggle to make ends meet on their own and always having to rely on abusive men to take care of them. He would never want to take that away from Penny or insinuate that just because they engaged in coitus that she owed him anything else. But the idea of someone else knowing her the way he knew her or her sharing those vulnerable moments with another person while she did so with him… Sheldon couldn't wrap his mind around ever feeling okay with that.

Pulling on his robe, he snuck out of his room as quietly as possible, hoping that he wouldn't wake up Leonard or his sister. The lights in the apartment were completely off, and he had to slowly make his way through, using his eidetic memory of the apartment layout so that he wouldn't bump into anything. He could hear his sister's steady breathing from the couch and hustled his way over to the door, closing it silently behind him.

However, Sheldon was not the only one in the family who possessed Vulcan hearing. Missy woke to her brother leaving the apartment. Finding this behavior odd, she crawled off the couch and scrambled to the door to peer out of the peep-hole. She watched as he knocked in a triple succession on the door across the hall. She mentally predicted the next events and watched as the blonde waitress from before opened the door to him wearing only a purple robe. She threw her arms around his neck, pulling him into a kiss. She half expected to see Sheldon push her away, but to her surprise and slight revulsion; she watched as her brother kissed the waitress back, pushing her into the apartment until the door closed behind them.

When Penny answered the door, the first thing Sheldon noticed was that she was wet. Her hair hung on her shoulders in damp loose curls and little water droplets scattered down the front of her robe. The second thing he noticed was the surprise in her wide-eyes as she took a few moments to look him over.

He didn't have a plan when he got out of bed to come over here. He just knew he had to see her and figure out a way to ease the tension billowing inside of him. He hated feeling out of control, and he found himself frequently in this situation when it came to Penny.

She pulled him from his frantic searching by twisting her arms over his shoulders and pulling him down in a kiss. He could taste the mint on her tongue and when he slid his hands around her middle, he could tell she wasn't wearing anything beneath her robe. This would not be a brief discussion where they both came to an understanding, and he could peacefully return to his bedroom for full night of slumber. He needed more from Penny tonight. Or more importantly, he needed to show Penny more to assure him that she would not be straying.

Coming to a decision, Sheldon guided Penny backwards into her apartment, never removing his lips from hers as he shut the door behind him. Penny responded by pushing him up against the front door and nipping at his bottom lip before sucking it into his mouth. They were falling into their usual rhythm, but Sheldon didn't want this to be like the times before. Off-setting her center of gravity, he pulled her hips against him and walked her back to the arm of the couch. With this new leverage, he towered over her frame, cupping her face into his palms as he pivoted her head to take control of the kiss.

Sheldon's new enthusiasm for taking the dominant position excited Penny. She was certain it wouldn't last long once naughtier activities commenced, but she delighted in his small step forward while it lasted.

Remembering his previous fears, Sheldon broke away from the kiss with a gasp and turned his back to her so he could gather his thoughts for a few seconds. He still couldn't explain the phenomenon of his mind becoming blank while he kissed Penny, but it was still as pervasive as ever. Breathing deeply, he collected himself and turned to face her again.

"Is everything okay?" Penny worriedly asked, remembering his cool distance from before. It had eaten away at her the rest of the day, and when she heard his knocks she figured it had been just a temporary fluke. But the strained way he stood before her now brought back those worries.

"No," he directly said to her and then turned his eyes to the ceiling as he paced in front of her.

"What's wrong?"

"Are you - ?" He started up but stopped himself, unsure of how to phrase this. "Is there -?"

Penny sat flabbergasted at Sheldon's loss of words. He always spoke so eloquently and as if he pre-planned every word he would say hours ahead of time. Something must be very wrong.

"Are you engaged in any sexual relationships with other men?" Sheldon decided the most direct route would be the best.

Penny's jaw dropped but she pulled it back up quickly, "No, why would you ask that?"

Sheldon folded his arms over his chest, turning his eyes away from her, "It occurred to me today that there is nothing binding you to not engage in amorous activities with other men if you so choose."

Licking her lips hesitantly, Penny spoke again, "Well, I'm not."

"I don't like the idea," he hammered out. Penny noticed an intense rawness to his eyes that she hadn't seen before.

"What idea?"

"Of you, with other men while you're with me," he finished, his arms unfolding down to his sides.

An excited chill ran up Penny's spine. Was he saying what she thought he was saying? That he wanted to be exclusive? Of course, he probably didn't understand exactly what this encounter implied, but obviously the thought of her with someone else angered him.

Approaching him cautiously, not wanting him to high-tail it from the sensitivity of his confession, Penny answered him with a new softness.

"So, I won't be with other men," Penny ran her fingers along the inside of his wrist. "Will you be with other women?"

Sheldon snorted, "Of course not. I've never wanted to be with a woman before you, Penny."

If this were any other guy, the things pouring from his mouth right now would mean so much more. It would mean that he wanted her to be his girlfriend, and that she was the only woman to ever make him feel this way (just a hair shy of a love confession). But this was Sheldon, and he wasn't like any man she had ever met. When he said these things, he meant them as literally as they sounded. Just because he didn't want her with anyone else didn't mean that it meant anything more. And when he said that he didn't want to be with a woman before her, he literally meant exactly that. Penny understood these things about him, but she couldn't help but feel overwhelmed with the idea that maybe Sheldon might be more on her wavelength when it came to this relationship than she previously assumed.

"So then we won't sleep with anyone else," Penny nodded her head, staring up at his lips.

"Or engage in coitus with them," Sheldon wanted to stress that point in particular.

"Especially not that," Penny shook her head, standing on her tip toes to plant a kiss on his lips.

Though only a peck, they held onto each other, their lips grazing one another's as they pulled away.

"You showered recently?" Sheldon asked as he touched the ends of her damp hair.

"Just got out," she murmured, planting another kiss onto his jaw.

An idea entered Sheldon's mind, one that surprised even him. Though his mind had calmed with Penny's declaration, his heart still beat wildly in his chest. He felt a strange power in his limbs. He recalled this feeling prior when Penny was on her knees in his shower, pleasuring him with her mouth. He had done some research later, worried about how her spontaneous act of oral sex might change the dynamics of their relationship. He understood that women enjoyed the reciprocal act, but it seemed a stretch with his comfort zone. However, he considered the variables presented to him in this moment. One - Penny has just taken a shower and was in her cleanest state. Two - the charged anger from before pushed him to display a show of dominance, one that he quite liked as he kissed her on the couch. And three - the frailty of this new bond he developed with Penny showed itself to be ever-present today, and the idea of her deciding to choose another sexual partner alarmed him in a way that he hadn't ever felt about losing a person in his life.

It seemed to Sheldon that the only logical thing to do in this moment would be to push past his previous misgivings and show Penny just how serious he was about being the only man to satisfy her needs.

He picked Penny up by her waist, taking a note from the way that he had seen men in TV and movies "take" their female partners to the bedroom when they wanted intercourse. He didn't appropriately anticipate for her height or weight, and he knocked her head into the top of the door frame.

"Ow!" Penny exclaimed but her giggling indicated to him that he didn't hurt her too badly. "Sheldon! What are you doing?"

Depositing Penny on the bed, he looked down at her and answered, "I predicted that that would go more smoothly than executed.

Rubbing the crown of her head, she twisted her face playfully and pulled him down by his robe, "Well, I appreciate the effort anyway."

He kissed her, opening his mouth wide as he lapped his tongue against hers. Noticing the urgency behind the hard push of his lips, and Penny quickly began undoing his robe, sliding it off his shoulders. Sheldon assisted her by undoing the top buttons of his pajama top, meeting her fingers halfway where she undid the bottom. He pulled the top off the reveal a white-undershirt. Why he insisted on wearing so many layers, Penny couldn't understand. But it definitely made moments like this frustrating.

Once Penny removed his undershirt, Sheldon stopped her hands, pushing them down onto the bed. He ran his fingers over her robe, finding the tie already loosened in the front. Pulling it apart, he graced his hands over her stomach, feeling the warm heat of her smooth, soft skin. As he pulled the robe away, he concluded his assessment from earlier correct. The robe framed her perky exposed breasts as they heaved up and down with her excited breaths. His eyes trailed to her hot-pink lacy underwear and he coordinated his next move. Leaning his head down, he pressed his lips to the center of her chest, kissing the hard bone of her sternum. Running his cheek over her perfectly round breast, he latched onto her nipple, the flesh hardening between his teeth as he sucked and licked at the peak. Her delighted mewls egged him on, and he switched breasts with a hard pop of release, using his hand to continue stimulating her.

Not that she was complaining, but Penny couldn't believe the initiative he took in this moment. Though he grew more confident in his movements during sex, she still had to push him to get up to that point most of the time, at least with suggestions or taking matters into her own hands. Who knew that just like any other man, Sheldon Cooper responded the same to a healthy dose of jealousy, kicking his butt into gear. She sighed contently as he kissed his way down her belly, stopping at her underwear line. She raised her hips as he pulled the garment away and she spread her legs hoping for a little more of his magic touch which she found he became especially skilled at since their first encounter.

She didn't expect, however, for Sheldon to stick his head between her legs and press his lips to her. She had never suggested it before, figuring he wouldn't be ready for a face full of crotch so soon. She hadn't gone down on him again since the shower, even though she knew he enjoyed himself. Though Sheldon loved kissing and had a fascination with doing it thoroughly and often while inside of her, she assumed he would have more problems with oral sex.

He hovered above her, his breath washing over her exposed mound as he pondered his next move. She bit her lip, having the instinct to instruct him, but she wanted to see where he'd take this. She didn't want to discourage this new predatory side of him. Instead she coaxed him with her hands, squeezing his shoulders in anticipation as she waited. She involuntarily clenched when his tongue finally met her clit

Unsure of how to proceed, Sheldon tentatively whipped his tongue out, licking her sensitive nub. He focused his slow movements here, knowing that clitoral stimulation always elicited favorable responses from Penny. Throaty sighs escaped her lips as he used more pressure with his tongue. Piecing this information together, he boldly made the next move of sucking her clit between his lips which caused Penny to squeeze her thighs around his head and chanted softly to a deity of unproven existence.

Penny didn't know where in the world Sheldon learned to do this, but she had a feeling his Google search history would contain more than just the science-y things he liked. That or her lessons worked so well, he learned to apply previous information to new experiences. Whatever it was, Penny planned to not say a single word that would disrupt this moment. She moved her hands to his hair, feeling the short crop against her fingers as she rubbed the back of his head while he licked and sucked at her. When he added a finger into her tense opening, she almost thanked God right there that this would be a successful experiment.

After a few strokes, Sheldon added a second finger, moving his tongue in time with his thrusting. The breathless moans coming from Penny now indicated to him that his actions were satisfactory, and he pushed on with a new enthusiasm. Curling his fingers against her G-spot, he had to push down one of her legs so that she didn't incapacitate him with her clenching thighs.

As Penny's climax began to build, she lifted her hips off the bed, knocking Sheldon's face into her mound. Rotating her hips against him, Sheldon picked up his pace, working her over harder with his mouth and fingers simultaneously. With a harsh sucking on her clit, Penny cried out as her walls spasmed around his fingers, her orgasm shooting through her legs, leaving her immobile.

Once her body relaxed beneath him, Sheldon pushed himself off the bed, pulling his pajama bottoms and underwear off. He turned to retrieve a condom from her dresser but stopped when her voice called to him.

"No, I don't want you to use one."

Sheldon faced her again, looking down in confusion.

"I want to just feel you," Penny explained. "All of you."

A nervous thrill ran down his back, "Are you currently taking an oral contraceptive."

Penny nodded and bit her lip.

"Very well," he crawled onto the bed as she pulled her robe out from under her and tossed it aside. Settling on top of her, Sheldon kissed and sucked on the side of her neck. A scary newness always shuddered through him when he pressed against Penny this way without any clothes. It wasn't frightening enough to cause him turn and run, but it did make his heart beat faster and goose bumps form on his arms and back. His hardness pressed in the crease of her folds and for the first time, he felt her slickness against his own genitals without a latex barrier.

Penny spread her legs, rubbing herself along the underside of his shaft. Sheldon reached down and positioned himself at her entrance, pushing inside of her with one, long stroke. Once completely sheathed, he pulled back slowly until he had just the tip inside and then thrust back down in a smooth quick motion. He repeated this over and over again until they were both panting in each other's ears. Without the condom, Sheldon could feel so much more. His tip even more sensitive, he felt a loss of control again like the first time.

Feeling empowered from the breathless orgasm he'd given Penny, he made an executive decision.

"I want to enter you from behind," he whispered against her neck.

Penny moaned, grabbing his ass and grinding into his next few thrusts. She really hoped he meant doggie-style because if not, Sheldon would get clocked right in his eye.

Pushing on his shoulders to give her some room, Penny flipped over on her stomach and arched her back to present herself to him. Sheldon ran his fingers up the curve of her spine, admiring the mathematics of her shape. Grasping her hips, he sat up on his knees and positioned his tip against her slit, a new tightness squeezing him as he pushed inside of her again. Something primal and male swelled up in him as he thrust into her, and he found his pace increasing with a new roughness he'd never dared take before. Penny responded enthusiastically, huffing and crying out into the pillow. Using his grasp on her hips as leverage, he pulled her towards him as he thrust forward, his body slapping against her skin as he picked up his pace.

Penny twisted her eyes closed and growled into her mattress. She always loved this position because of the intensity of the penetration. But what made this even sexier was the new confidence Sheldon used as he pounded into her, getting lost in his own pleasure as he took her. She pulsed around him, feeling a deep orgasm building inside of her as his aggression picked up. Moving with him, she backed into him, needing for him to be harder and rougher to push her over. As his thrusts became frantic, any caution he might have been holding released, and she could feel the full power of him pistoning into her as she screamed obscenities against her feather pillow.

He came with a blinding focus, his nervous system trained to the pulsating in his shaft as he released inside of her. The rhythms of their orgasm rolled together, and every pull of her walls drew him further inside. He collapsed on top of her as she rested her hips back onto the bed. They lay that way for a few moments with his penis still encased inside of her as they both tried to catch their breaths.

Once he got his wits back, Sheldon dragged his face across her shoulders, kissing the expanse of her back as he pulled away. She shivered as he lazily made his way down her spine. Once he reached her cheeks, he traced the area where the creep from earlier had grabbed her. Leaning over, he planted a kiss in the spot, branding it as his.

AN2: I know a lot of you have been waiting for "Alpha Sheldon" to come out, and I always planned to have this situation bring out that side in him. I hope that this didn't disappoint. :P I know he's not as aggressive as some other versions of Alpha Sheldon, but I felt this is what fit the story.

Take the time to leave a review. I always want to know what you're thinking!