Penny Tests a Theory Ch. 2 (Big Bang Theory) (NSFW)

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Sheldon and the guys might think she was stupid, but Penny was leagues ahead of their nerdy asses at being a normal human.

Of course, one wouldn’t need to be a genius at social interaction to realize that the way they acted around her changed drastically since she had sucked Sheldon to completion to shut him up.

Even though it had been nearly a week since that had happened, Penny wasn’t sure what the hell got into her mind. Why did she think giving her alien-like neighbor sloppy head was a great idea? Especially when it was just to get him to stop annoying her?

Sometimes, Penny wanted to get her head checked to make sure she hadn’t been ruined for life by acting like a ‘big ol’ five.’ She never regretted anything she had done, but she didn’t want to give people who clearly had shown no interest in her blowjobs ‘cause, why not.’

Especially since her other nerdy neighbor now looked at her with expectation, as if she would drop to her knees and unzip his pants at any random time.

“My god!” Penny buried her face in her hands and mentally kicked herself. She had never felt more like a slut before.

It was unfortunate, but she would have to avoid her new friends for the rest of her life. And to get her mind off things, Penny was going to a club, picking up the first hot guy that looked at her, and fuck his brains out.

That was why she wore her little black dress with her tits almost bursting out. It had always been a way to attract the type of men who could give her what she wanted.

After a deep breath to settle her nerves, which Penny had no idea where they came from, she got off her couch while pumping herself up.

She would get drunk, make terrible decisions, and deal with the regret that followed the next morning. But most importantly, she would have fun and forget about Sheldon’s beautiful cock!

Penny froze and shook her head to get the image of that perfect thing out of her mind. This was precisely why she needed to get this over with. That cock would forever be off limits from now on, and there would be no way that would ever change. She didn’t want to deal with the neurotic human that came attached to that cock, no matter what her sleep-addled mind decided the day she had taken Sheldon down her throat.

“Alright, Penny,” She muttered, “You can do this. This isn’t your first rodeo.”

She opened her apartment door quietly to avoid alerting her permanently horny neighbor and her other bat-eared neighbor that she sucked off. It was too bad that luck wasn’t in her favor.

After Penny locked her door, she turned to see the two men she was trying to avoid walking up the stairs.

Great.

“Hey, Penny,” Leonard greeted nervously, “Are you going out?”

Before Penny could answer the obvious, Sheldon did it for her.

“Given her current attire, it stands to reason that is exactly what she is doing,” Sheldon said in an almost-sneer, “Penny, I thought we spoke of your frivolity with money. I see that you haven’t changed due to your need for coitus.”

Penny wasn’t sure, but she thought she detected a hint of anger in Sheldon’s voice, but that couldn’t be possible. Disgust, sure, but anger? It made no sense for him to feel that way. Besides, she honestly didn’t care. She was furious that the stupid genius hadn’t learned to keep his mouth shut around her.

“What was that, Sheldon?” Penny’s tone was sugary sweet. An obvious hint for Sheldon to shut up. Of course, he didn’t get the hint.

“Once again, might I suggest we move forward with my plan to organize your life?”

If Penny’s eyes could burn a hole into someone, there would be one on Sheldon’s stupid face as he continued to talk. After what must have been a minute of him breaking down all the wrongs he noticed, Leonard finally decided to come to his rescue.

“Sheldon? Buddy?” Leonard touched Sheldon’s shoulder, making the lanky genius flinch at the touch, “You should probably shut up.”

“Me?” Sheldon turned to Leonard with an offended look, “I am simply trying to help her, Leonard! No need to be rude.”

[Break]

Sheldon wasn’t sure why he was purposely pushing Penny’s trigger points. He knew that talking about her finances and recent difficulty with auditions would be a surefire way to get an ‘ass kickin,’ as his sister says, but he couldn’t stop himself.

It had been five days, fourteen hours, and thirty-six minutes since Penny had shown him and his penis a pleasure that couldn't be forgotten.

Sheldon thought it was a shame that he couldn’t be more exact with the time, but far too much of his mental faculty was currently reserved for focusing on Penny’s pouty pink lips and her breasts that were practically exposed in the so-called dress she was wearing.

She had obviously intended to copulate with an inferior male, most likely one that resembled a musclebound ape, and while that was of no surprise considering the men Sheldon had seen traversing in and out of Penny’s apartment, it was different this time.

He couldn’t quite describe it, but it was similar to the hour after he had eaten a terrible lunch. If he didn’t know better, he would have thought that the Chinese food he had just eaten would give him food poisoning.

However, as much as Sheldon didn’t like to interact with the human species, he had seen enough to connect the dots.

Sheldon was jealous.

He didn’t like the thought of Penny with another man, so he did the only thing that had been previously successful.

Infuriate the blonde and hopefully induce her to get her knees… again.

Sheldon shut out the image of her green eyes looking up at him when his penis started to react.

“Help?” Penny growled.

He held back the shudder that threatened to run through his body. It was annoying that the simplest sounds she now made were enough to arouse him.

“Leonard, I need to have a talk with Sheldon. Go inside,” Penny ordered.

“Uh… You know how he is, Penny. Don’t let him ruin your night. I’ll take care of this.”

Sheldon didn’t think his eyebrows could rise higher than it currently was. Leonard was the first to try and distract Penny in this type of situation. Perhaps he had become a bigger man?

“That wasn’t a suggestion!” Penny practically hissed before grabbing Sheldon’s shirt, ignoring his protest as she pulled him into her apartment.

He flinched when the door shut behind them, wondering if he was going to be physically assaulted instead of receiving fellatio.

“I’m near my limits, Sheldon!” Penny poked her finger into his chest, “I will whoop your skinny ass back to Texas if you don’t mind your own business!”

Sheldon flinched with every poke, slowly coming to the disappointing conclusion that he would not be getting the fellatio that he desired.

“I’ve had a tough week, and even after what I did for you, you still try to talk down to me!” Penny was on a roll, clearly fuming in anger, but to Sheldon’s disgust, he found that even this was attractive to him, “All I wanted was to find some guy to fuck, wake up hungover, and you start with these smart ass comments again! I should have knocked your lights out instead of sucking… oh.”

Sheldon froze, unsure why she was staring at him with shocked eyes.

“OH!”

He twitched when her green eyes dropped below his navel.

“Oh…” Penny’s lips formed a slow smile, “So you wanted a repeat.”

Sheldon’s eye twitched, wondering what the protocol was in this situation. He wasn’t exactly an expert at coitus and related activities. And he had a suspicion that his regular bluntness would not be appreciated.

“Sheldon,” Penny said softly as she moved closer, making him walk backward, “I’ll walk out of that door if you don’t tell me what you want.”

Sheldon’s back hit the door, leaving him nowhere to retreat. Penny, however, didn’t stop her advance.

He soon had her soft curves pressed against his body, drawing his eyes to her breasts that pancaked on his chest, pushing them even more out of her dress than it already was.

“Familiar, isn’t it?”

“Y-Yes,” Sheldon was surprised that the words hadn’t gotten stuck in his throat as his mind replayed the memory of Penny using her mouth to pleasure him.

“Admit it, Sheldon,” Penny whispered, “And I might give it to you.”

“Very well,” Sheldon cleared his throat, “Penny, I want you to fellate me.”

Penny drew back with a disgusted expression, immediately making him miss the feeling of her body against him. “You what? Why?”

“Did I misunderstand what you asked?” Sheldon was confused, wondering if his compromised mind was hallucinating.

“Sheldon,” Penny shook her head, “Is that some fancy way of asking me to suck your cock?”

“Fancy?” Sheldon blinked, “I don’t see what could possibly be ‘fancy’ about asking you to perform fellatio on me. I think it’s quite crude.”

Penny stared at him before covering his mouth. “I know what crude is. And that was not it. You understand?”

Sheldon nodded after it became apparent it was impossible to speak.

“Here’s what I want to hear,” Penny moved her face close enough for Sheldon to see the brown flecks in her green eyes, “Penny. Please suck my cock.”

Sheldon stared silently at Penny after he was released. He had forgotten how coming she had been during their encounter.

“Say it.”

“If I must,” Sheldon ignored the feeling of blood rising to his cheeks, “Penny, please suck my… cock.”

Penny immediately dropped to her knees and smiled up at him.

“See?” As she pulled down his pants, she said, “Was that so hard?”

Sheldon groaned softly when he finally felt Penny’s fingers wrap around his half-mast cock again. He had dreamt about this far too much in the past few days. Of course, he intended to not miss a moment, so he kept his eyes on her.

Penny rubbed his tip under his boxers with her thumb, smiling as she felt the shaft quickly hardening. She reluctantly freed Sheldon’s cock and pulled down his underwear before it would become an annoyance.

“Still a waste on you,” Penny said teasingly as she wrapped both hands around his shaft, “If it was any other guy, they would be knocking down my door to give me a taste.”

Sheldon’s cock twitched when Penny kissed the tip of his cock. When she pulled back to lick her his, he asked, “Is that what you wish me to do?”

Penny froze, not knowing the answer to that. Did she really want her neurotic neighbor to come to her regularly so she could service his cock?

She stared at his impressive manhood momentarily before realizing this could be a good thing. Of course, while it would be fun blowing such a beautiful cock, she would eventually need more.

With how much Sheldon was rearing to go, Penny didn’t doubt that he would be willing to go much further to explore this new side of him. It would be convenient having a fuck buddy with such a pretty peen close by… plus, Sheldon’s sexual awakening gave her a sense of pride.

“Yes,” Penny finally replied before adding, “Only if you can do something for me.”

Sheldon stared at her, cock hard as steel, waiting to hear her requirement.

“Last time, I was in control,” Penny lightly stroked his cock, “This time, I want to see that you’re capable of taking the lead. It’ll be boring if you just stand there every time.”

“Elaborate,” Sheldon’s fingers twitched. He would never admit to such neanderthal behavior, but he had… researched fellatio extensively. And only one qualified as a man taking control during such an event.

Penny released his cock, took his twitching hands, and placed it on her blonde hair. Her carefully groomed blonde hair for her planned night out.

“By the time you’re done with my mouth, I want you to make it obvious what I was doing for you. I want my mascara a mess because of the tears from you fucking my throat. My lipstick should be smudged from the base of your cock stretching it wide open. And my lips should be swollen and chin red from your balls banging off them.”

Sheldon almost went weak in the knees when she ended with a wicked smirk.

“Do you think you can do that, Sheldon?”

“Done,” Sheldon said in an uncharacteristic growl before burying his fingers in Penny’s hair and bringing her close to his cock, rubbing it on her lips.

Since she wanted rough, Sheldon used his excellent memory to pick the appropriate videos that fit her needs.

“Still too so-GLULKH!”

Sheldon moaned loudly when he felt Penny’s throat surrounding his cock. He still hadn’t sheathed himself completely, with a few inches still left, and pushed his hips forward firmly, shuddering when her soft lips kissed the base of his shaft.

He stared into her green eyes, noticing that they were quickly tearing. The concern must have shown on his face since Penny winked at him and gave him a thumbs up.

Sheldon blinked, not expecting that she was still barely affected by the impulsive thrust down her throat. But who was he to argue what Penny was able to handle.

He pulled her off his cock by the grip on her hair, eagerly watching his shaft retreating from her mouth with a fresh coat of spit. He gave her a few seconds to catch her breath when her pouty lips were nursing on the tip of his cock before thrusting, fucking into her throat with little control.

*GLARKH*

Sheldon rolled his hips against her mouth for a few seconds before deciding to do what Penny demanded. Use her mouth for his own pleasure.

He pulled her off his cock again, but this time he held her in place where only his head was inside her mouth. He looked at her to ensure she hadn’t changed her mind, and with the blonde temptress giving him another wink, he let go of his concerns.

*GLACKH*

*GLACKH*

*GLURKH*

Sheldon’s fucked Penny’s mouth without restraint. His cock pounded past her swollen lips with full strokes. It was a miracle that he wasn't bruising her nose with the speed he was taking her mouth. However, he certainly fulfilled her request to redden her chin.

The sting of his balls bouncing off Penny’s chin only added to the feeling of having her warm, wet, sucking mouth pleasure his cock with every thrust and pull he made. Sheldon would never put acts of physical pleasure above science, but this certainly came close.

He fucked Penny's mouth nonstop, only giving her the required breaks to take in oxygen before continuing to rail her throat relentlessly. It continued for what felt like fifteen minutes before Sheldon could no longer hold back.

“Penny,” Sheldon panted as he pounded his cock into her mouth to the base, holding her there, “I’m close!”

Sheldon grunted and made another harsh thrust, a choked gurgle coming from Penny before she wrapped her arms around his hips to keep him lodged in her throat.

He moaned loudly before shooting his cum directly into Penny’s stomach. He could feel her sucking around the base of his cock, drawing more cum from his balls before humming when the flow of sperm tapered off.

Sheldon slumped against the door and groaned weakly when Penny increased the suction around his cock as she pulled away, his weak grip no longer holding her down.

*POP*

He shivered at the cold air hitting his spit-covered cock before gulping in desire at Penny’s current state.

Sheldon would have usually commented something unwise about her state. Still, just like in his previous encounter, his intelligence was sucked out of his cock by Penny.

“P-Penny?” Leonard’s shaky voice was heard, along with weak knocks.

Sheldon stared at the beautiful blonde with mascara running down her face, lips swollen, chin reddened, saliva coating her neck, and nipples peeking out of her dress. He did as she asked.

“Was this satisfactory?”

“Hmm?” Penny sounded dazed as she looked up at the man who abused her throat so well, “It was perfect. You’ll work great for me, Moonpie.”

Sheldon gave her a smoldering look, not that he knew it. “Good.”

“Sheldon?!” Leonard was more insistent this time.

Penny got up on quivering legs and waved a hand at the door. “Take care of that, will you? I need to change.”

Sheldon's lips quirked into a half-smile, happy she wasn’t leaving to hunt for a coital partner.