A/N: because you all wanted more...as a warning though, if you're not into reading any type of sex, don't read this.

As she opened the door to her apartment, Caitlin heaved a tired sigh. She immediately slipped off her heels and ventured to her kitchen to pour herself a glass of wine. Settled herself onto her couch and turning on a Bones rerun, she tried to destress and unwind. What started out as a normal day had soon turned hectic when a metahuman started terrorizing Central City. Luckily Barry and the rest of the team were able to wrap it by the night's end, but all she wanted right now was to relax a little before going to bed. It was the weekend too, so she was hoping she could sleep in.

Her phone then buzzed next to her, causing the doctor to roll her eyes. "Please do not tell me we have another metahuman," she muttered to herself as she fetched her phone.

Automatically opening her device, she was greeted with the image of a shirtless chest. A shirtless chest that she felt slightly ashamed to have recognized even before noticing the contact name displayed at the top - Barry Allen.

She looked at the photo a hard moment before her shoulders shook with silent laughter. He couldn't really be serious, could he? To be completely honest, she had been kidding earlier when she told Barry to send her pictures, wanting to make him feel as flustered as she had felt. But she didn't think he would take her seriously, or even want to for that matter.

Caitlin bit her lip, fingers hovering over the phone, trying to think of what to do next.

...

Barry's heart felt like it was beating out of his ribcage. Looking down at his bare chest, he noticed the skin was starting to get blotchy from his embarrassment of having just sent a provocative text to one of his best friends. It was only after he sent the picture, however, did he consider that she might have been joking earlier. Because really, Caitlin Snow and sexting didn't seem like two things that would normally go together.

"I'm so stupid," he whispered forlornly to himself, hitting his head against his phone's screen. Would she even answer back?

He was abruptly interrupted by his phone's text message chime.

Caitlin: That's all you've got, Mr. Allen? I see this view every other day on my operating table.

…

Catlin had no idea what she was doing. Part of her wanted to see how far Barry would go, but, honestly, how far would she? Caitlin had no idea how to sext in the first place. She had never been one to do such a thing in the past - she always thought the semantics behind it were fruitless and banal - but here she was practically egging Barry Allen on.

He had to realize this was a joke, right? Was he simply trying to see how far she would take the facade too?

Her phone then chimed again, indicating that she got another text. Trepidity, she opened the message.

Barry: Is this something you see every other day?

A photo then followed soon after, showing Barry in his bathroom, standing with his back to the mirror. His long arm was outstretched to take a selfie, allowing Caitlin to see the entirety of his chiseled upper chest, the picture cutting off towards the end of the V in his hips where his happy trail hair began to get thicker. But that wasn't all. Since he was standing in front of the mirror, his reflection showed something that she definitely didn't see as frequently as his upper body, and that was his bare ass.

Admittedly, it was a very muscular and firm one at that, though she figured as much with how his Flash suit clung to that area of his body - not that she was looking! It just happened to be something she had observed on a few occasions…

She bit down on her lip hard, her cheeks flaming. What was she supposed to do now?! Barry was putting himself out there and she felt bad, especially since this had kind of been her idea in the first place - whether she was joking or not. Not to mention, part of her kind of liked being sent this photo, and begrudgingly she had to admit, the sight of his lean and muscular body was causing the region between her legs to pulsate...Okay, so maybe she had teensy little crush on Barry, but could anyone blame her when Barry was so...Barry?

Leaving her phone behind, she scurried off to her bedroom. She had to figure something out.

...

Barry was pacing the length of his bathroom back and forth and back and forth, waiting for any response from his personal physician. But it had already been five excruciating minutes, and she hadn't responded back.

Barry: Cait? You there?

He rubbed the back of his neck, trying to figure out her mind-set. Did she not find him attractive? He had tried to keep things humorous and light - it's not like he sent her a dick pic! - but regardless, did she think he went too far? Had this all really had been a joke and now he freaked her out?!

Barry: Cait I'm sorry. Plz answer me.

...

Caitlin was frantically searching through her closet, looking in the depths of her dressers in search for a piece of lingerie that she could wear. Once upon a time, she owned a generous amount of lingerie, however ever since Ronnie's death, she had been convinced she would die a nun. Therefore she ended up throwing a lot of them away on the pretense that she no longer needed any piece of clothing to feel sexy in, let alone use it to be seen by anyone.

"Ah ha!" she expressed gleefully as her fingers touched a familiar lace material squooshed into the corner of the last place she tried. She tugged it out, unfolding it and hanging it out in front of her to view it. It was brown-colored babydoll, most of which was see-through except for the laced parts concealing her chest, and by holding it against her she figured it would fall down on the top of her thigh. She thought it was modest, in terms of lingerie, but she thought Barry would still enjoy it.

Hopefully...

...

Barry couldn't handle it any longer. He had to see her. Caitlin still hadn't responded to him and he had to make sure he hadn't ruined their whole friendship just because he tried to be daring for once in his dating-life.

Using his superspeed, he quickly dressed and raced over to Caitlin's apartment. He stood outside her door, palms sweating as he raised his one hand to knock on Caitlin's door a few times and then a few times more. "Cait!" he hollered at the door, then knocked a couple more times. He waited a few more seconds before knocking again.

He was about to raise his fist to knock once more, but the door ripped open to show a bewildered Caitlin. "Barry? What are you doing here?"

Barry opened his mouth to speak but all words seemed to leave him when he noticed what Caitlin was wearing. His eyes widened and he swallowed nervously as he took in her flimsy outfit that left little to the imagination and showcased her nicely long legs.

Following Barry's gaze, Caitlin soon realized that her robe had tore open in her haste to answer the insistent knocking. A flush rose from her neck and colored her face as she hastily closed the robe around herself, blocking Barry from his view and bringing him out of his stupor.

"Umm," he started inarticulately, his mind still processing what just happened. "You-you weren't answering back," he eventually said, running a hand through his hair.

"Oh," Caitlin let out, looking behind her where she saw her phone on the couch. "I was in the other room…" she explained simply. "I didn't see what you said."

Relief rushed through Barry and his whole demeanor visibly relaxed. "So, you weren't ignoring me?"

The space between her eyebrows crinkled as she regarded Barry. "Ignoring you? Why would I be ignoring you?"

He shoved his hands deep in his jean pockets. "Did-did you not see the picture I sent you?" he stuttered, a knot of nervousness was spooled in the bottom of his stomach.

Caitlin pinked a little more. "You mean the bathroom one…?" she shyly asked, her heartbeat loud in her ears.

"Yeah," he croaked, causing him to awkwardly cough. "When you didn't reply, I thought I freaked you out…" he explained with a wince. "I-I didn't freak you out, did I?" he asked, needing to know that he hadn't crossed a line and ruined their friendship, or whatever they were currently dipping their toes in.

"No," she quietly said, bowing her head down in mild embarrassment. It was one thing to flirt and share pictures via text, but having to actually talk about it face-to-face was proving to be difficult. "I um…" Caitlin started, but paused to clear her throat and gather her thoughts. "I was preparing my own...picture…" she confessed, gesturing to her current state of dress as she bit her lip.

Barry raised an intrigued eyebrow, his eyes darkening to a deeper green. "That's…" he choked out, erratically pointing to the ensemble she was wearing, "for…me?"

Caitlin slowly bobbed her head, nodding her reply.

The speedster lost his breath momentarily before he impulsively stepped over the threshold of her apartment door, cupping her face in his hands as he kissed her square on the mouth. His momentum caused the duo to stumble a few steps backwards into her apartment, but it didn't deter Caitlin from reciprocating. Nonetheless, Barry broke the kiss all too soon, his mind catching up with groin, but he remained close, leaning his forehead against hers. "Is this okay?" he questioned breathlessly, not wanting to assume that just because she was willing to send him a racy picture that she necessarily wanted to do anything else.

"Yes," she raspily said, leaning herself back just enough to look at him with her impassioned, hooded eyes.

"Good," Barry mumbled in relief as he leaned down to kiss her again, kicking his foot blindly back to close her door and hurriedly step out of his shoes. Caitlin pulled him forward, her fingers curled around his t-shirt, leading them both to her couch until they both stumbled onto it with an "oof" of surprise as they fell in a tangled mess. They merely giggled against the other's mouth, high off the happiness that was bubbling.

They resumed kissing, maneuvering around so that Caitlin was straddling Barry while the speedster sat normally on her couch. Their lips slid languidly over each other's in sync, like they've been doing this for years. He was already so comfortable with her, not feeling as if he had something to prove and instead just going with what he felt was right in the moment.

Caitlin's hand snuck up under his t-shirt, feeling the taut muscles of his lightning-induced abs with a feather-like touch that made him groan into her mouth and reflexively grind his hips up against hers. His hand in turn rose up her leg until it reached the silk of her robe where he stopped his ascend and began rubbing his thumb gingerly in a circular motion, closer and closer to her inner thigh, her legs squirming against him.

His personal physician broke away from their kiss to let out a stuttered breath, but he continued to pepper kisses down her neck and then back up again on the opposite side. He wanted to kiss every inch of her, and he hoped that, if not today, eventually he'd be given the opportunity to.

Barry then felt the end of his shirt being tugged up, causing the speedster to raise an inquiring eyebrow at his friend. "I'm practically naked and you're dressed from head to toe," she explained to him with an adorable pout.

He smirked at her. "Aren't doctors supposed to be patient?" he playfully scolded, but nevertheless helped her remove his shirt.

"Shush, you," she muttered, causing him to let out a chuckle as she threw the piece of clothing somewhere behind her before her hands reached out, greedily feeling up Barry's chest as their lips met back up in another kiss. The doctor in her was fascinated by the way his muscles moved under her palm and how reassuring it was to feel his heart pounding resoundly. His skin was so warm, it was almost addictive for the cold metahuman, feeling like she was a leech trying to contain his warmth.

Barry lightly tugged at the robe Caitlin was wearing, easily dissolving the quick knot she tied earlier in the evening, easing the sleeves down her arms. The bio-engineer leaned back as she helped him slide the robe off herself completely, revealing her babydoll lingerie piece once again. Immediately, Caitlin felt his eyes weigh heavier and grow more lust-filled, stirring a whole new set of emotions within her, and for the first time in a long time, she felt that she was burning.

"Bedroom," Caitlin exhaled, feeling the need for him growing exponentially.

The forensic scientist didn't have to be told twice. He easily stood with Caitlin in his arms before flashing them to her bedroom, easing her gently on her carpeted floor, gazing down at her wantonly.

She leaned up on her tippy-toes, pressing a searing kiss to his lips that left both of their bodies tingling with anticipation. His hands moved to her hips, trying to hold her in place as they continued. He only minutely jumped when he felt her hand run along the length of his penis over the material of his jeans, causing the two to chuckle quietly to themselves.

Caitlin made quick work of his belt, tossing the item carelessly on the floor before popping open the button and dragging the zipper down its ridges all while she began to suck on a point near his collarbone. Barry wasn't sure if she was so in tune with his body because she was his personal physician or if she was just that good, but she was hitting all of his sensitive spots and the effect it was having on him was pulse-popping.

The geneticist then kissed her way down his torso to what Barry thought was a random pattern, but was actually purposeful from the doctor's perspective. She was kissing all of his scattered beauty marks that she often saw, but could never touch - until now that is. When she finally reached his waist-line, she only moved the denim out of the way to place a tender kiss an inch above his manhood, causing the speedster to shudder from the gentleness as well as the location.

Caitlin snuck her hands into the waistband of his boxer-briefs, tugging down the backside of them, her hands ghosting over his firm bottom as she did. His hips twitched forward as he watched her tug both his pants and underwear down his legs, the cold air instantly hitting his penis and sending a chill up Barry's spine.

After completing her task, she leaned back to gaze at the one piece of Barry's body she was least familiar with, especially erect. She licked her lips, dragging one of her hands down the speedster's chest, kneeling down as her fingers danced across his abs and grazed down his shaft. She only stopped to press her thumb against the head of his dick, smearing the pre-cum tantalizingly around.

"Cait…" he let out, sounding off a whimper as he covered her hands with his, stilling her actions. "You don't have to do this, you know?" he told her, his eyes gentle as he regarded her, despite her knowing how much he probably wanted a release.

Her heart swelled as she looked at the him - maybe even falling for the man even more than she had ever wanted to. "I want to, Barry," she told him, offering him a gentle smile.

"I just don't want you to regret anything," he told her.

"Since you've known me, have I ever done anything I didn't want to do?" she questioned him.

Barry chuckled fondly, shaking his head. "No-ohhhhh," he let out in surprise, his words morphing into a moan as Caitlin's soft hand enclosed around his penis, pumping it up and down his shaft. She continued for a few glorious moments before he felt her hand wander to his balls, fondling and rubbing each one attentively too.

Her eyes then locked with his, hers all dark and seductive, before she ran her tongue up the length of his cock. "Ahhh, Cait…" he breathed, grunting. She then licked the head of his penis, swirling her tongue around it before she took him whole in her mouth. His eyes rolled to the back of his head as her wet mouth and skilled hand worked together. "Fuck," he panted out. It was almost too much to see the same lips that regularly spewed out medical jargon currently sucking him diligently, and maybe it was too much.

Feeling his stomach tightening up, Barry knew he wouldn't last much longer "Caitlin," he said in warning, "I'm gonna-" he said just before he ejaculated into his personal physician's mouth.

"Sorry," he embarrassingly apologized. Sure he was the 'fastest man alive', but he liked to think that didn't apply to all things - and it usually didn't. "I-I usually last a lot longer, I swear," he tried to explain.

Caitlin stood up, wrapping her arms around his neck lazily as she regarded him with amusement. "Barry, it's fine," she assured him, kissing along his jaw in an effort to further persuade him. "It's perfectly normal. Plus with your fast regenerative abilities, it won't be much of a problem soon, right?" she whispered huskily in his ear, biting down on his earlobe.

The speedster nodded fervently, his heart beat spiking. In fact, he could already feel himself growing hard again. As his embarrassment ebbed away, he grabbed his doctor by the waist, hoisting her up and laying her on the bed, causing the bed springs to squeak and an adorable giggle to escape from Caitlin's lips.

He settled himself in between her legs, toying with the lace of her lingerie top. Their eyes met, his boring into hers as he raised the material up and over her head easily enough, replacing his view with something even more heart-stuttering. He then looked back up at her, watching her watch him with such a vulnerable but trustful expression that it made him feel so whole and content, both needed and wanted.

He hovered over her, her hardened nipples grazing his bare chest as he kissed her, eliciting a shudder to pass through the pair - so much skin on skin that it was driving them both mad. He then let his lips trail down her jaw and to her neck, passed her clavicle and to the swell of her breast. There he ran a curious tongue on her pert, right nipple, licking at it for a few moments before he moved to lap at her left breast.

"Ohh," Caitlin let out lowly, lifting her hips up against his to try and relieve some of her want.

The speedster continued his trek, kissing down her stomach towards her navel only to reach the only barrier left between the two: her panties.

Caitlin lifted her hips, wordlessly giving her approval. So Barry hooked his fingers in the panties, tugging them down agonizingly slow. At least he was in Caitlin's mind, where she irritably thought that for someone who did everything so quickly, Barry seemed to be taking his good ol' time with this.

Barry discarded the lacy bottoms carelessly off the bed with an impish grin that went straight to Caitlin's loins. He then raised her right leg up against his shoulder, kissing the inside of her ankle before progressing downwards, his large warm hand feeling up her opposite thigh. And as he reached her inner thighs where he licked and suck at it lavishly, he let his thumb swipe over her clit. "Mmm," Caitlin softly hummed.

"You like that?" Barry asked, his face was so close to her womanhood that she could feel his hot breath hitting against her, making her squirm in anticipation. She nodded her head, but he turned to her other inner-thigh, licking and sucking at that instead.

Letting out a slight frustrated huff, she looked down only to find his eyes looking at her with a devilish smile. He knew that his lack of touching her where she really wanted was getting her agitated. "Barry, I swear...stop teasing me before I show you the true meaning of blue balls."

He chuckled, his eyes twinkling. "Yes, Dr. Snow," he said.

She was going to scold him some more about his patronizing demeanor when Barry brushed his lips over her slit, licking around her pussy's flesh tenderly. Her mind went blank for a moment, her arousal flamed, but when his tongue dipped into her core, Caitlin could not refrain from letting out a long, low moan before biting down on her lower lip as her hips buckled.

"Better?" he questioned knowingly as he inserted one of his fingers into her, pumping it in and out of her easily due to her already evident arousal.

"Yesss," she breathily approved, arching her back, craving more.

"Good," he murmured against her folds, before lapping and sucking on them gently as he inserted yet another finger into her, causing her breath to hitch and a pleased mewl to escape her throat.

Before Caitlin could barely digest what Barry was already making her feel, Barry decided to sweep his tongue back and forth over her clit, sending a whole new wave of bliss to wash over her. The feeling then multiplied exponentially when he began vibrating himself, causing his tongue and the fingers inside of her to vibrate too, making her inevitably tremble.

"oh..oh..OHHH," she let out, fisting her surrounding sheets to feel grounded from the euphoria the sensations brought to her. The feeling was building and building and building as her heart pounded against her rib cage. "B-Barryyy," she moaned as her orgasm took over, throwing her head back as white flashed behind her eyes, her hips convulsing into his hand and mouth.

Barry stayed consistent until he saw her hips go slow and her breathing start to mellow. He stopped vibrating against her, but continued to rub and lick in and around her womanhood until she went slack from fatigue.

Caitlin laid on her bed, staring at the ceiling, feeling sticky from the the thin layer of sweat she had accumulated from Barry's ministrations, her mind oddly blank from the orgasm she just experienced. "What - was - that?" she panted weakly.

Barry palmed her left breast as he chuckled into her right. "You're my personal physician. I thought I'd be your personal...vibrator," he offered humoredly, kissing her sweetly all along her chest.

Caitlin freely laughed, reaching out a hand to grab the back of his head, guiding it to hers so she could kiss him.

He smiled as he pulled away, rubbing his nose fondly against hers, breathing each other's air as they both caught their breath. He raised his hand to tuck her hair behind her ear gently. "You're beautiful."

She smiled sincerely. "And you're really pretty," she countered amusingly, turning her head to kiss the inside of his wrist.

Barry snorted, remembering what she said the night before. His mind then spun at the thought that so much had happened in the span of one day. It was surreal to think that last night he had tucked Caitlin innocently into this very bed and now he was in it with her, doing nothing innocent of the sort.

"You know this isn't a one time thing, right?" Barry asked her. He wasn't the type to just jump in bed with whoever was willing. It took a special type of girl - someone he could see himself falling in love with, if he wasn't already falling. "Because I want this, Cait. Not just for sex, but for all of you, all the time. Many, many times."

Her face scrunched up cutely as an adorable laugh escaped her lips once again. "Good, because I feel the same way."

Barry beamed before giving her a delicate kiss on her mouth. Caitlin strained her neck forward to steal a few more pecks that Barry couldn't help but obliged to give back.

"Looks like you've recuperated," Caitlin then said, her hand feeling down his chest, ghosting passed his dick.

Barry swallowed. With a gorgeous woman like her, especially with the noises she was making, he probably would have been hard again with or without his special healing abilities. "We don't have to do anything more. I know what you just went through was pretty intense," he said, trying not to me smug about it.

"Women naturally recover faster from orgasms than men," Caitlin pointed out, eyeing him knowingly. "Plus, you're not the only one with regenerative abilities, remember?" she said coyly before rotating her hips and flipping him over.

…

"Those were very good pancakes," Caitlin complimented him the next morning, putting her dishes in the sink. She then walked to where Barry was by the counter, looking nothing but drop-dead gorgeous in his t-shirt and nothing else, wrapping her arms around his neck where her hands began subconsciously playing with the ends of his hair..

He smirked down at her, letting his hands rest on her hips, his thumbs rubbing circles against her hip-bone comfortably. "I'm good at a lot of things, you know."

"Oh, I know," she said, patting his bare chest with a small giggle before reaching up to kiss him, her mouth still tasting of the syrup they had with breakfast, which only made him want to deepen the kiss more, so he did.

It got to the point where both of their hands were beginning to wander and he was nearly a millisecond away from flashing them back into her bedroom when his phone sounded, breaking the duo from their embrace.

The speedster groaned as he picked his phone up from the table, further grumbling to himself when he saw it was the station calling him. "Hello? …Yeah...Alright, I'll be down there soon…" he spoke, sighing as he hung up the phone.

"You got called in?" Caitlin asked, her head resting comfortably on his shoulder.

"Yeah…" Barry breathed, craning his head to kiss her on the forehead. "But I'll be back as soon as I can," he promised. He then sped around her apartment, gathering all his belongings before stopping back in front of her. "Hopefully I won't be more than an hour," he said, laying a lingering kiss on her lips.

"Don't you want your shirt back?" she asked when they pulled away, her fingers toying with the shirt that might as well been a dress on her.

He shook his head adamantly. "No, no, you can keep that," he told her, smiling as he admired her in it once more. "I'll just head back to Cisco and I's apartment to get a new shirt." He dipped down, giving her another kiss. "See you soon."

.

Barry entered his apartment to find Cisco eating cereal at the kitchen table. The long-haired man looked up, only to look at Barry curiously with raised brows. "New fashion statement?" he said, gesturing to Barry being shirtless. "Or did you finally get some?"

The speedster rolled his eyes, ignoring the vibing metahuman's knowing glances as he put his phone and keys down on the counter. "I got called to a crime scene so I'm going to get ready and then head out. Joe didn't think it was metahuman related, but be on call in case it is."

"Yeah, yeah, whatever," Cisco said, waving the topic off. "Dude! Why didn't you tell me you were going out last night?! We could have gone together," Cisco exclaimed, pointing his spoon at Barry accusingly, flinging bits of his sugary cereal along with it. "I've been meaning to show off my new dance moves in da club."

Barry shook his head fondly at his best friend. "I didn't go anywhere to pick up a girl, it just sort of happened," he merely explained, walking towards the bathroom - it was probably best if he showered so he didn't reek of sex at work.

"Oooh," Cisco let out, getting up from his seat, following the forensic scientist to the bathroom where Barry shut the door in his face so he could get ready in private. "Impromptu. Noice! Do you think she has a friend or a sister you could hook me up with?"

Cisco could hear Barry chuckling behind the door. "I'm not talking about this with you right now," he said over the sound of the water running.

Cisco pouted. "Well, why not?" he wondered to himself, walking back to the kitchen. His best friend just had sex for the first time in months. Wasn't he supposed to be supportive?

Barry's phone then chimed, indicating that he got a text message. Glancing at his screen it was from Caitlin.

Caitlin: Just realized I still owed you a pic. Here's one In case you need a little extra motivation to get the crime scene done quickly…

Cisco snorted. "Dude, is Caitlin sending you sappy motivational quotes everyday too?" The phone then buzzed again in Cisco's hand, the text indicating it was a picture message. "Ooooh, I wonder if we got the same quote or not…" the mechanical engineer asked himself out loud, unlocking Barry's screen easily to find out.

"AHHHHH!"

Barry speeded out, fully dressed and his body poised to attack. "Cisco, what's wrong?"

"Not cool! Not cool! I didn't sign up for this!" Cisco screamed, throwing Barry's phone across the room.

Looking at his friend incredulously, Barry went to see why Cisco had just assaulted his phone. He swiped it and immediately saw that a text from Cait was already pulled up, one displaying a very interesting picture message that made Barry want to race right back to her apartment that instant.

"Cisco…" Barry started.

His roommate shook his head. "I...I don't want to know...just keep that stuff far away from me, please."

Barry bit his lip, trying not to laugh at how Cisco was overreacting to seeing a picture of his best girl-friend in lingerie. "Okay…" Barry promised, taking a step back. "I'm off to work, but don't wait up. I might not come back home again tonight…"

"I don't want to know!"

AN: Sooo...? How'd you like it? I feel like this ended up being nothing like I thought it would. Like I thought it would be more about sexting, but it obviously wasn't. So I hope you still liked it. Please let me know what you think!