A/N: Not sure if many people are still reading this, but I guess it's close enough to the end that I'll forge on anyways. I think there's still only going to be one more chapter, but I also thought this would be shorter, so I might still break off a piece of the next one as an epilogue like originally planned.

By the time Abby and Buck boarded, the plane was almost full and there were just a few people trickling in last minute. Apparently the person on the other side of Abby was one of those people, because the window seat was still empty. She supposed that wasn't a surprise since he hadn't come to the desk when the agent called his name; he obviously hadn't been at the gate yet. Maybe he had a late connection or something. It wasn't exactly a small airport so it could easily take a fair amount of time to get from one end to the other. But the minutes ticked on, and still no one came for 49A, but she was hesitant to get her hopes up… it sure would be nice to stretch out a bit and talk freely though. At last the doors closed, and she allowed herself a moment of glee: 49A was a no show! They officially had the row to themselves now.

Everything was going relatively well until about half way through the flight. Buck was watching a movie on the in-flight entertainment system, and she had her feet up on the extra seat, leaning back against his shoulder, blanket over her legs, reading from her book, when they suddenly hit a patch of turbulence that nearly sent her flying. The fasten seatbelt sign lit up so she tucked her book away and righted herself. She looked over at Buck, and the colour had all but drained from his face as the plane lurched through the air. He whipped his headphones off and grabbed her hand with an almost painful grip.

"It's okay," she said soothingly, "everything is going to be fine. Just breathe."

He did his best to take some deep breaths and calm down, but the effort failed when the plane started shaking again. She winced a little as his fingers closed even tighter around hers.

"Buck, look at me."

He was lost in his own mind, and didn't seem to hear her.

She took her free hand and cupped his cheek, turning his head to face her.

"You're okay, I'm right here."

The fear in his eyes made her heart ache a little, and so she did the only thing she could think of to distract him: she kissed him. At first he seemed frozen, and she started second guessing the idea, but just when she about to pull away, she felt him lean into her a bit. With renewed faith in her strategy, she kissed him again, and this time he kissed her back. That was when her plan took an unexpected turn. With every jolt the plane took, he kissed her harder and deeper. He had pulled her as close as her seatbelt would allow and was running his hand up and down her thigh. This was not what she had intended. What was supposed to stay light and relaxing had become hungry and desperate, and it was taking an increasing amount of concentration to keep quiet about it.

By the time the turbulence subsided and the seatbelt sign turned off, she was a mess of arousal. Her breathing was quick and shallow, she knew her skin was flushed, and her centre was all but throbbing with need. From the way Buck quickly grabbed the blanket and pulled it across his lap too, she guessed he was in much the same boat. She was trying to calm herself down, but he kept shifting uncomfortably beside her and knowing why was not helping her cause. The way she saw it, she had two options: shift over to the open seat to give them both some space, or do something about the problem. She waited until the person in the lavatory had returned to their seat, and then she made her decision. Sneaking her hand under the blanket, she slid it over to brush against his hardness through his jeans.

He obviously hadn't seen her move her hand, because he jumped when he felt her fingers trail across him. Eyes wide, he turned to face her.

"What are you doing?" he whispered.

She leaned over and murmured in his ear, "you were the one who brought up the mile high club."

"And you said no."

"A girl can't change her mind?"

He groaned.

"Shhh, if we're going to do this, you have to be quiet. Can you do that?"

"Yeah."

"Good."

She undid the button and zipper on his pants, and he gave a small sigh of relief. She pushed his boxers out of the way and wrapped her hand around the base of his cock, smirking when she saw his grip on the armrest tighten. Be careful what you wish for, Buck. Normally she liked to take it slow first and draw it out for a while, like he usually does with her, but realistically she understood this was not the time and place for that. In the back of her mind, she was shocked she was doing this at all given the setting, but he was incredibly hard to resist in any scenario. She started up a rhythm of firm strokes, slowing after every few to lightly trace her thumb around the tip and spread any moisture she found there. His eyes closed and his head tipped back against the seat but instead of speeding up, she almost let go and his eyes flew open again, turning to look at her. That's when she lightly dragged her nails slowly along the underside of him, and she saw a shiver run through him when she hit just the right spot.

"Right there?" she whispered, as if she didn't already know the answer, while drawing circles with her fingertip on the sensitive place she just passed.

"Abbs, you're killing me," he groaned quietly, "please."

She supposed she had taunted him enough for today and relented, pumping him faster and tighter until his knuckles gripping the armrest were almost white. His jaw was set tight, and she knew he was gritting his teeth against the sounds threatening to break free.

Sensing he was close, she made sure to brush that spot with the next few strokes and leaned over to purr in his ear. "Are you going to come for me?"

She nipped at his pulse point and he stiffened beside her as his release hit. She started to slow her motions then, gently bringing him down from the high. She fished a couple tissues out of her purse and did her best to erase the evidence and redress him while he caught his breath.

"Now it's my turn," he said quietly, pulling her in for a rough kiss. "Turn around."

Her eyes widened. "What?"

"Like when you were reading, with your back to me."

She did as instructed, putting her feet back up on the empty seat and leaning back against him while he wrapped one arm around her and used the other to drape the blanket over her. His hand went straight for the top of her pants, deftly flicking the button open and drawing the zipper down. He continued the path downward to touch her through her panties first, finding them soaked through already.

"Well these aren't going to do you any good after this," he murmured.

"Please," she breathed, "don't tease me this time."

"You want it hard and fast?"

She nodded against his shoulder.

"Whatever my girl wants," he said softly, finally slipping his hand inside her panties.

He lightly ran his finger along the length of her, grinning when he heard her inhale sharply. She was definitely hot and bothered if she was this sensitive already. He ghosted his fingers over her opening, gently tracing circles around it and letting just the very tip of his finger dip inside every so often.

She turned her head to muffle her voice in his shirt and whined softly, "Buck."

He chuckled breathily. "Was this," he plunged one finger inside her, "more what you had in mind?"

Her back arched slightly and she bit down hard on her lip to stop from crying out, nodding her assent. He worked his finger in and out of her, allowing his thumb to just barely brush her clit now and then. Her breaths were coming faster now, and he watched her hands fist the blanket as he added a second finger. She tilted her hips to press herself down against his fingers and he obliged, thrusting them harder and faster, delving a little deeper. He increased the pressure on her clit as well, rubbing insistent circles over it. He felt her muscles start to tighten around his fingers and glanced around to see if the coast was clear. Not seeing anyone looking their way or approaching the lavatory, he sneaked his other hand around to pinch her hardened nipple through her clothes. The unexpected sensation sent her tumbling over the edge with a strangled gasp against his shoulder.

He continued to stroke her lightly while aftershocks rippled through her body, until he felt her go limp against him.

"You okay?" he murmured with a smile.

"Yeah," she breathed, digging another tissue out of her purse and passing it to him. "Can you do something else for me though?" she asked as she shifted to sit upright again.

"What?"

"Can you get my carry on down? I have a change of clothes in there."

He grinned wickedly. "And are you changing the whole outfit or…?" He let the question hang.

"You know very well what I'm changing," she said quietly, giving him a playful shove.

"Well, since it is my fault, I guess I can help you out." But before he got up, he couldn't resist pulling her in for a kiss. "You are something else, Abby Clark."

A/N: Ok so I know it's unlikely for this scenario to happen on a flight like LHR-LAX, but it does on occasion (and I don't mean the smut part lmao, that probably does happen more often that we'd think, I mean having the row to yourself). On my first flight to Australia, the person between my friend and I didn't show up (I like the aisle, she likes the window) and it was the best thing EVER lol. So it is possible for someone to be a no show even on a full flight. We actually thought it happened again the second time we went, and then she showed up like literally the second before they closed the doors and we were bummed lol. An extra seat is heaven on a long haul flight, especially overnight ones.