A/N: Thank you guys so much for loving and following this story so quickly! :) Followers and guest alike - you are THE BEST supporters. In honor to that, I bring you chapter 4. I kept getting interrupted and kept up from finishing this chapter for you all, but it is finally done and ready to be read. I do hope you keep enjoying the journey this story will be taking.

*This is an M Rated chapter* ;)

Emma walked past the crowded room, making her way into the kitchen. The entire kitchen was spacious enough for plenty of people to gather on in. She squeezed her way through some just to get to the wine storage fridge. As she opened the door, her eyes grew wide in surprise to find it filled with what looked like endless wine bottles & the very same champagne they had been drinking.

If there was this much drinks to spare, she could only imagine how packed the fridge was with food. Curiosity got the better of her, for she went ahead and opened the fridge, taking a peek inside. Sure enough, there was enough food to feed more than a hundred people.

"Oh, do I need to put out more food?" asked Kathryn as she noticed Emma peeking inside the fridge.

"No. I was just… curious." replied Emma as the fridge door closed.

Kathryn smiled, "I'm afraid I do tend to go all out." she extended her hand, "I'm Kathryn, Regina's best friend." she continued as Emma shook her hand in greeting, "You're Emma, right?"

"That's right." replied Emma as she took her hand back.

"It's great to finally put a face to the name. I can certainly see the appeal." replied Kathryn, a smirk erupted from her lips as Emma quirked a brow in question, "Regina told me all about your… flight encounter."

Emma's cheeks grew red. This certainly would make the blonde's list of unforgettable parties.

"Oh, please. Don't be embarrassed. You're both consenting adults." Kathryn closed in the space between her and Emma, "Between you and I, do tell… was she satisfied?"

Emma couldn't believe what she was being asked, then again it was a party and there were drinks. Lots of them.

Emma smirked as she wrapped an arm around Kathryn, "Can you keep it a secret?" she whispered as Kathryn nodded. "So can I."

Kathryn was left with a smirk as Emma quickly parted away from her, grabbing the first bottle of Patron tequila she could get her hands on, quickly taking two shot glasses, carrying it out along with the champagne bottle as she left the kitchen.

"Oh, I like her." said Kathryn as she walked back into the crowd of people.

She was stepping out into the terrace when she noticed Regina was no longer standing by the balcony.

"Over here, dear."

Emma turned to the familiar voice, joining Regina as she was sitting on one of the outdoor chairs, placing everything on the table.

"I seem to be famous with your friend Kathryn." Emma said as she refilled their champagne glasses, as well as filled up the shot glasses to have them ready as she continued talking, "I ran into her in the kitchen."

Regina scoffed, "I can only imagine what you must have gone through." she said as she took a sip of her champagne.

Emma nodded, "She's very blunt. She asked me if I had satisfied you."

Regina leaned forward as she almost spilled her champagne with what she just heard, she placed her hand on her chest as she cleared her throat. Oh, she was going to kill Kathryn. She would have gone in there too at this very moment and rip her heart out if it wasn't for the light smirk on Emma's face.

"Forgive her, she's… obviously intoxicated." said Regina.

"I don't mind. I like her, she seems like she cares a lot for you." Emma took a sip of her champagne, her eyes staying focused on Regina.

There were a few people standing by the balcony now, but it was still quiet and away from the loud chatter and music playing just behind them.

"So, were you?" asked Emma after a moment of silence.

Regina raised an eyebrow, not quite understanding her question, "Was I what?"

"Satisfied." replied Emma, curious to know the answer herself.

Regina dropped her gaze as she took another sip from her cup, clearing her throat as she spoke, "You were there. You should know."

They hadn't talked about what happened on that plane, and they both knew they shouldn't, but the champagne was flowing. Emma's cheeks were becoming flushed as images of that moment flashed before her eyes. Truth is, even if they had to be quick about it, Emma couldn't forget the puddle that was formed in between Regina's thighs that day. The way she tightened around her fingers as she came undone. Regina was definitely satisfied and that brought a small smirk to Emma's lips as she hid it by drinking from her cup.

People cheered and began dancing as the song What Is Love blasted next from the speakers. Emma began nodding her head to the music, which earned her another quirked brow from Regina.

"What on earth are you doing?" asked the brunette, staring at her as if she'd gone crazy.

"Don't tell me you've never seen A Night At The Roxbury." replied Emma.

That earned her another questioning stare from the brunette as Emma's eyebrows shot up to her hairline in complete shock.

"Not everyone watches movies, Ms. Swan." said Regina as she became annoyed by being stared at as if she were the crazy one now.

"Surely, you must watch something?" wondered Emma.

"My career keeps me pretty busy." replied Regina.

"So does mine, but I still have time for some fun." said Emma, still in shock.

Regina couldn't help but chuckle, "Try owning a million dollar company."

Emma nodded, "True, I don't, but I do hope to own my own night bar someday."

"Well, if you ever do, I give you my word I will attend. I'm sure Kathryn would die to go." said Regina.

This brought a smile to Emma's face, as her eyes looked over to all the people dancing inside the house as they quickly fell back on Regina, "I don't suppose you dance?"

Regina chuckled once more, "Not to this."

Emma didn't say a word, she just stood up as she placed her cup on the table, taking Regina's from her, placing it down as well, earning a questioning look from the brunette as Emma only stood before her, offering her an outstretched hand.

"Come on." Emma rolled her eyes as Regina just sat there, looking at her as if she were crazy. She grabbed her hand and pulled her up from her chair, taking a few steps towards the balcony, providing them more space to dance. Emma began moving her feet and body to the song as she freely danced in front of a gawking brunette.

A part of her wanted to dance. That inviting feeling that Emma rediated was hitting her again as she watched just how easily the blonde moved to the music. She didn't have a care in the world, nor cared who saw. She was just being herself.

"I'm not dancing to this." was all Regina said, her eyes still glued towards all of Emma's movements.

Emma rolled her eyes, "It's not rocket science. Just do what I do." she kept moving to the music, not too fast but not too slow. She was at the right pace. She rushed towards the table as she retrieved the two shot glasses, handing one to Regina, "Here. This will help you. You have to loosen up."

Regina quirked a brow as that sounded like another challenge. Loosen up? She could be loose if she wanted to, so without another second thought she clanked her glass against Emma's and drank the liquor straight down, handing the glass back to Emma which she placed back on the table along with her own.

Emma kept up her dancing to the rest of the song. She smiled and was rather enjoying how tense Regina seemed to be, as if she were worried or scared at what others might say that they saw her dancing to this. Truth is, she was scared. She had never danced before not like this, not even as a teenager. Her mother kept her away from everything a childhood had to offer, she grew up too fast, too quick. She was brought up to always be as elegant as she could be that even after she lived off on her own, she maintained that image on herself. And, then to her surprise, something unexpected happen.

Emma took her hands as she pulled her away from back doors, away from the view of people. The balcony itself was rather big, and they weren't that far off, but it was a more secluded spot, one where she could feel with a bit more confidence if that's what she wished - it was as if Emma could read her thoughts in that very moment.

"Now, no one can see you." Emma whispered as she winked her way, which granted her with the most beautiful of smiles she had ever seen on Regina Mills. Emma couldn't explain what that smile just made her feel as she kept up her dancing. Smiling herself as soon as Regina began to move along with her, doing exactly what she was.

Emma's eyes kept taking in the movements of Regina's body as she kept up with her dancing. Their bodies were incredibly close to one another as they both eyed each other throughout the remainder of the song.

Regina was really moving now, not too fast or too slow either as she was still studying upon Emma's own movements, quite enjoying them to be frank. Just as Emma was enjoying watching Regina for her eyes now traveled down Regina's legs. They weren't exposed for she was wearing a long dress, but her imagination could run wild, especially after a few drinks.

Both slowed down as the music changed, same beat but different song.

"Thank you." said Regina as Emma motioned for them to take back their seats, as she did so, "You are… surprisingly a good dancer, Ms. Swan."

"Thank you. I get that a lot." replied Emma.

Regina chuckled, "Is that how you get women to sleep with you?" she asked.

"No. I mostly meet them on airplanes for that." Emma joked, a smile spreading across her face as she earned a glare from Regina.

A moment of silence filled the air, before Regina spoke, "I'm sorry about… the whole airplane incident. I can assure you I had never done anything like that in my entire life."

Emma smirked as she handed Regina a freshly served champagne glass, "You could have fooled me. You were very direct." Emma took a sip of her champagne.

Regina should have moved on from there. Just change conversation or get up and call it a night. But, she was quite enjoying herself, and she wasn't revealing anything personal about herself.

"You were great."

Emma's eyes looked up from staring into the bubbles that had formed in the champagne as she heard Regina's confirmation she had been wanting to hear. She smirked, surprised by what came out of her mouth next, "And that was just a quick one."

Regina raised a brow, "Are you trying to say that it gets better?"

What the hell, Swan? Are you seriously flirting?

Emma opened her mouth to say the next words that were about to come out of her mouth, when…

"There you are!" August shouted, as Emma and Regina's heads looked over at him as he motioned towards the crowd, "Kathryn wants us to play a little for everyone now, come on."

Emma was surprisingly enjoying her conversation with Regina that she hadn't even noticed since when the music had stopped. Truth be told, not even Regina noticed. Green eyes found Regina once more as they both stood up from their chairs.

"Sorry." Emma apologized as if it were her fault they were suddenly interrupted.

Regina shook her head, "Go ahead."

Emma nodded as she gave Regina a small smile as she headed into the crowd. Everyone cheered as she entered and sat next to August as he handed her her guitar which had been in his car.

Regina stood by the door frame as she watched along with everyone else how flawlessly Emma began to play along with August, each playing their parts on their guitars, making the instruments sound as if they were singing the words to the song they were playing in that moment. They had everyone singing along with their tune in a matter of seconds. They went even more crazy about their playing as Emma began to bump her wrist against the wood of her acoustical instrument, creating an amazing and clear hollow sound to go along with the beat of the song. Her fingers moving with such ease, it was amazing to watch.

Regina's eyes were focused on Emma's fingers, their smooth and rapid movements as they played. Emma's hands, of course weren't the only thing Regina's eyes picked up on. Her hair was not tied in a ponytail tonight like it had been in that bar. It was hanging loose over her shoulders, it was a wave of golden locks that shined as the lights reflected off them. Her locks alone were just begging to be touched. And, the smile playing on Emma's lips as she played along was just as captivating.

"You know, with fingers that skilled and that fast, I can only imagine how well she played your instrument."

Regina jumped a tiny bit at the sound of Kathryn's voice who was now standing beside her as she held a cup of champagne in her hand while her eyes remained on Emma and August as they played.

"I saw you talking out on the balcony."

Regina turned her head as she looked directly at Kathryn, "Your point being?"

"My point being: You are leaving tomorrow. Which means you won't come back to New York anytime soon. Make it a good last night here." Kathryn nudged her as she took a sip from her cup, walking through the crowd to get a better look.

It was in that moment that Regina found herself looking into Emma's emerald green eyes as she continued playing.

She couldn't explain what was happening deep down in the pit of her stomach as those green eyes were staring back at her. Out of that entire crowded room, Emma's eyes found hers alone.

Regina was into her eighth - maybe tenth glass of champagne once August and Emma stopped playing. Her eyes searched for Emma as she no longer was at the head of the room. It didn't take her long to notice blonde wavy hair and the familiar clothing that Emma had been nicely wearing as she made her way into the hallway of the apartment.

Don't do it. It's crazy to give into this again.

However the throbbing between her legs spoke louder than the words passing through her brain, for she finished what was left of her champagne, gaining more courage as her legs began guiding her through the crowd and into the same hallway.

Kathryn was right. She was leaving tomorrow, no harm in wanting a repeat of what happened on that airplane. Right? No harm at all. It happened once, it could happen again.

Stop! You said never again.

Regina stopped in the middle of the hallway, she could see the bathroom light on inside the shut door that was just a few more feet away from her. Regina shook her head as she turned back around only to walk a few steps farther away from the bathroom as she stopped on her tracks yet again.

She walked back towards the bathroom door, quicker this time, her heels echoing rapidly on the hardwood flooring beneath her feet as she walked. Her olive hand reaching for the handle as she stopped herself yet again.

I'm a grown woman! What the hell am I even thinking doing this again? This is crazy!

Chatter and laughter were heard just outside the hallway as she snapped out of her thoughts, turning back around, her back to the bathroom door as she took a step forward, determined to leave the hallway.

"Regina?"

She stopped at the sound of Emma's voice after the bathroom door swung open, making her turn back around as she faced Emma, who's brows were furrowed in confusion.

Emma looked into Regina's eyes as she stood between the door frame, "Are you alright?"

Regina said nothing, instead she just pushed Emma back into the bathroom as she shut the door behind them, her lips crashing hard on Emma's and, God did they feel good to kiss. A light grunt escaped Regina as she felt her body being slammed against the bathroom door as her hands made their way down her waist. A sign that Emma wanted this to happen too. It was just sex after all. A carnal, natural desire that was meant to be had.

Emma's lips parted as an invited tongue from Regina made its way into her mouth. She massaged her tongue against hers, creating a dance of desire that was only theirs to share. A grunt now escaping the blonde, for she too had to admit - Regina's lips were unlike any other she had ever kissed. She knew she shouldn't be doing this, but damn her if she didn't want it. She did. Regina Mills was an incredibly sexy woman. And, it had been a long time (since she had Henry) that she's had a good sexual encounter.

"We gotta stop meeting like this." Emma murmured against Regina's lips as kisses continued being exchanged.

"Do you really want us to stop now?" asked Regina in between kisses.

Their eyes were full of lust, their pupils grown, their cheeks flushed, puddles the size of Texas were now created between both their legs.

Emma smirked against Regina's lips, "You can't kiss me like that and expect me to stop. I just meant do you really want to do this in a bathroom again, in an apartment full of people who aren't planning to leave anytime soon?"

She had a point. On the plane they didn't have much of a choice, they had to be quick. But, here, they could easily get interrupted. And, there was nothing more annoying than getting interrupted by someone who was highly intoxicated, constantly pounding at a closed door.

Regina grunted as her head lightly slammed against the door. Another indication that she wanted this to happen again.

"Do you have somewhere we could go?" she asked, to which Emma had to quickly think about.

There was no way they could go back to her place - not with her son there. That was too much. And, she wasn't about to have Ruby wake Henry just to take him to hers and Graham's apartment. Even before her own urging desire, her son was first.

He was well cared for. That was the important thing. By this hour, Henry should be sound asleep in his bed and nor Ruby or Graham would leave until Emma came home.

Emma's light bulb came on, as she got an idea. A smirk formed on her lips, "I just might. Meet me outside. I won't be long." she made her way out of the bathroom as Regina nodded in approval, while the brunette quickly left the apartment without saying a word to Kathryn (because she wouldn't hear the end of it from her if she knew what she was about to do), Emma made her way towards August.

"Hey. I need to ask you for a huge favor." the blonde's brows furrowed in question as August just stared at her quietly, "What?"

August pointed towards his lips, indicating her that she had a bit of ruby red smudged lipstick on her lips, which Emma quickly wiped off.

She was about to speak again, when she heard keys jingling as August retrieved his apartment keys, placing them in the palm of her hand, "You're lucky I have a pull out couch."

Emma patted his arm as she smiled, "Thanks, Aug. I'm sorry to take your apartment tonight."

"Forget it. Go. Kathryn won't mind me staying here tonight." he winked at her. A smiling Emma quickly made her way through the crowd and out the door.

On the drive towards August's place, Emma's brain kept telling her all the reasons she shouldn't do this. As Regina's was in that very moment.

But, then again, Regina was leaving to Boston tomorrow and the possibilities of her seeing Emma again would be small.

Her body was trembling, but she remained still in her seat that Emma couldn't tell. She looked over at the blonde who looked calm. Only she wasn't. She was just as nervous. Giving up all her one night stands for Henry never bothered her. Henry was her heart, she'd do anything for him. As for Regina - Robin, her ex husband was the last person she ever slept with, and he was never any good to say the least.

And, now here was this beautiful blonde girl who was more than willing. Who had given her a quick but intense orgasm on a flight to New York.

What the hell. It was all in good fun, and if things weren't that great in the morning then they could always blame the drinks they had consumed and leave it at that. It didn't have to get complicated. It was just sex. A moment of pleasure between two grown women.

It had been a long time coming for both, so why not go for it?

The front door to August's place swung open as Emma switched on the lights to the place. It was a tiny apartment, enough for one person. He hadn't had a chance to pick up, so there was still some take out containers lying around in the kitchen and a few empty beer bottles.

"This is August's place." said Emma as she caught Regina observing the disorder that was around them and glaring up at Emma in the process, "I live with a roommate, so I didn't think it would be wise to go to my place."

"He's fine with you bringing women here to sleep with you?" asked Regina as she quirked a brow.

Emma blushed, and she couldn't understand why, but she felt the need to be honest to her about her sex life, "To be honest with you, I've never brought anyone here. All my one nighters happened when I was a teen, so technically you're the first woman I've been with since then."

Regina glared at Emma obviously not believing her.

Emma's eyes looked away as they looked right back at her, "Okay, there was… someone. But, that was then."

"So, you used to be in a relationship?" asked Regina. It wasn't her business what Emma did before her, nor should she care. She didn't, which is why she didn't even understand why she was taking such liberty to ask such a question.

This time, it was Emma who raised an eyebrow in question, "Do you really want to have this conversation, now?"

This made Regina smirk. She couldn't understand it, she was feeling as if she was still in school and this was going to be her first time. Not only that, but it was with someone ten years younger than she was. That was what her brain was thinking in that moment. Her body however was already walking up to Emma as she closed the distance between them, faces only inches apart.

"If you've changed your mind, that's okay." Emma murmured as her eyes fell upon Regina's lips, studying every detail on them.

"Have you?" Regina asked as she began playing with one of Emma's strands of hair, her eyes studying the smoothness of it, "I am ten years older than you, after all."

Emma chuckled, "You aren't old, Regina. Have you seen yourself? You were the hottest one at that party."

That was maybe the very first compliment Regina had received in such a long time, from someone else other than her best friend. Weather it was true or maybe Emma was just this smooth, she blushed at the compliment. There was that inviting feeling once again.

Their heads tilted as the distance between their lips was no more, they pressed together in a kiss that started slow but in a matter of seconds became a hungry one. Regina's arms quickly linked around Emma's neck, as Emma pulled her closer towards her body, breasts against breasts as her arms wrapped around her thin waist. Her hands traveling slowly upward Regina's back as her fingers caressed the silky feeling of her dress. Her thumb and index finger pulling down on the zipper revealing silky olive toned skin from Regina's back.

Emma picked up on Regina's sweet, intoxicating perfume. The same one she had smelled on the plane. It turned on her on something fierce, for she then buried her face against the brunette's neck, her lips hungrily kissing all the exposed flesh.

A moan escaped from within Regina, as her head tilted back, granting Emma access to more of it. The feeling that was shooting through her body as Emma's lips kissed her neck was indescribable. Her perfectly manicured nails scraped and gripped onto Emma's hair as she felt a hot, wet tongue taste and tease on her flesh.

Before Emma knew it, she was being pushed back onto the couch as Regina laid on top of her, as their lips met again. Only once they both crashed onto the couch, the stereo system blasted in full blast as Marvin Gaye's song Let's Get It On came on, making them jump off each other as Regina's body jumped off of Emma, while Emma searched everywhere around the couch for the remote, tossing pillows in the process. As soon as she found it in between the cushion seats she didn't waste anymore time as she aimed it towards the stereo shutting it off almost instantly.

The room was silent again as both women were left panting as they exchanged glances.

"Well. That's convenient." said Regina.

"Do you think that maybe life is trying to tell us that we should finish this up in the bathroom?" Emma joked, earning a light laugh from Regina.

"I certainly hope not." replied Regina as she sat on the couch next to Emma, elegantly leaning back, as she played with her jet black hair.

Emma's eyes looked her over. There was no imperfection on this woman. How could that be? How could someone be this flawless, I mean really?

The blonde didn't waste anymore time as she just quickly removed her vest, tossing it aside as she leaned forward, crashing her lips on Regina's once again in a hard and lustful kiss.

Oh, she wanted this. She definitely wanted this.

Regina quickly melted into the kiss herself as she quickly began to slip out of her dress, just as Emma began to work on her shirt, ripping it open as the buttons clanked all over the place as they flew off from the shirt. Both were panting, as they helped each other with the rest of their clothes. Regina helped Emma rid herself of the rest of her shirt as she slid it off her arms, tossing it behind her as it flew off and landed on top of a lamp.

Brown eyes scanned Emma's body as she admired her sculpted arms and abs. In that very moment, green eyes scanned Regina's body as well as she took in the perfection that was before her. She knew the woman was hot when she first saw her on that plane, but she never imagined this walking monument.

The sound of boots hitting the floor sounded as Emma slid out of them, as her belt buckle clanked from being undone by Regina's own hands. Their lips meeting momentary as they parted once again as Regina yanked her belt off, dropping it on the floor while Emma worked on her button and zipper, quickly removing her jeans, kicking them off in the process.

Lips pressed together in a hard given kiss as Emma laid on top of Regina once again, grunts were exchanged as their skins made contact against one another. They easily got into place like two puzzle pieces. Regina's hands caressed their way down Emma's shoulders as she slid down her bra straps, unhooking it in the process. She tossed it aside as she soon rid herself of her own.

Their lips melted on to each other as well as their hands against each other's bodies. They were ride of their panties soon, both releasing moans of pure pleasure as both sexes touched.

It was the most wonderful sensation both women had felt in a long time.

Emma couldn't resist the urge to grind her hips as her own sex massaged against Regina's equally soaked one, both becoming instantly breathless, green eyes staring into brown ones now.

Emma's hand moved in between their pressed bodies as her finger found the all too familiar entrance she had felt on their flight. Regina let out a loud moan as she felt another finger being inserted. This was definitely already better than their quick round on the plane.

Regina couldn't hold back either as she too allowed her hand to travel down south, inserting two fingers just as eagerly, quite enjoying how easily they went right in. It turned her on even more as Emma released her moan as both their fingers worked together in an in and out motion.

Hips moving against hips, moans being exchanged as well as panting breaths as they sped up on their motions.

"Regina…" Emma panted as she looked into those brown dark eyes again as a smile formed on her lips, "We're having sex."

Regina couldn't help but laugh between moans as her eyes stared back into Emma's, their bodies never stopping their motions, "Yes, I gathered that, Ms. Swan, now keep going." she ordered.

Emma was more than happy to follow such pleasurable order as her movements became more rapid, her free hand cupping a perfectly rounded breast as Regina's nails scraped along Emma's pale back, leaving red fainted marks along their way down. Their bodies trembled, muscles hardened as they both reached their orgasms in union. They didn't feel the need to keep quiet about it this time, as they moaned, almost screaming them out.

Their bodies slowed down their movements as both women came down from the ecstasy they had given each other as their fingers slowly slid out from where they had entered.

"My…" Regina breathed out, her chest heaving with pants as Emma tried catching her breath, her face was buried against the crook of her neck as she breathed in the mixed scent of heated sex and Regina's sweet intoxicating perfume. "It certainly does get better."

Emma lifted her head as she looked down into the brunette's brown orbs, smirking, "Definitely better." Emma's arm stretched out as she aimed the remote towards the stereo system, pressing the on button, as the same song continued playing from where it had stopped. Another smirk formed on Emma's lips, "This might just become my new favorite song." she joked as Regina bursted into a rich sound of laughter.

They kissed once again, obviously ready for another round as they rolled over on the couch, a loud thump sounding from their bodies collapsing onto the carpeted floor as they slipped from the couch from lack of space.

Kathryn's party as well as this night now would definitely be marked down on Emma's list as one of the most memorable moments.

A/N 2: To be continued... Leave your review if you want to know what Chapter 5 holds for our favorite ladies.