Title: Vehicle
Author: michigangirl30
Fandom and Pairing: CSI: Vegas, Nick/Greg
Rating: NC-17
Prompt: Touch, #36 PWP
Warnings: None.
Notes: I had an flist prompt challenge a million years ago and this one was a suggestion from flipflopadd1ct, 'sex in a moving vehicle'.
Summary: Greg has a specific destination in mind for Nick.

Desert scenery was always beautiful- at first. But after the initial twenty miles, it got less and less interesting. The sun had set long ago and now the desert was just a black curtain outside the windows of the SUV. And besides being exhausted from a long double shift plus a few hours, Greg was bored. He didn't bother trying to sleep, it never worked out well for him in a moving vehicle, and conversation required the brain cells that had closed up shop prior to the sun setting. That left something that never required all that much thought.

This did not bode well for Nick, who was driving them back to Vegas at a careful pace due to his own tired state. When Greg unbuckled his seat belt or flipped up the arm rest, it hardly registered with him, but the moment a warm hand snaked into his lap, all his nerve endings were suddenly at attention.

Letting his eyes slide off the road for a moment to look into the deceptively innocent eyes of Greg Sanders, Nick asked warily, "What are you doing, Greg?"

Working through the belt buckle, snap and then zipper of Nick's black jeans, Greg said casually, "Nothing. Just never mind me."

Nick was a little bewildered, not to mention bothered. Guessing what Greg had in mind was easy, but, unfortunately for Nick, the bewitching wasn't far behind. "Kinda hard to do when you're.. uhh, oh man.. when you're doing that."

"So you do know what I'm doing, then." Now Nick could hear the teasing sarcasm he was so accustomed to from Greg. The comment was a reminder of the time (or two or three) that Greg had tried this on Nick before and Nick had shot him down. For Nick it was a little too exhibitionist and he just didn't get why it couldn't wait. Still, as long fingers worked their way underneath the cotton of his boxers, he wondered at the thrill this was supposed to bring. That's when he felt himself being exposed to the air while technically fully dressed. The flash of on coming headlights brought a shot of adrenaline to his veins and Nick had to admit that there might be something to this slightly public situation.

As Greg adjusted his position to a more horizontal one, Nick took one last half-hearted shot at diverting Greg's plan. He was certain Greg was expecting it anyway. "Yah, and it's more than a little dangerous."

"Not if you keep your eyes open and on the road. I'll do all the heavy lifting for you." Bingo. 'Giving' Nick new experiences was exciting to Greg. Not long ago, when it had been discovered that Nick hadn't had many encounters that Greg found outside of the 'ordinary', Nick found himself waiting nervously for Greg to explain the presence of a silk scarf, a warm bowl of melted chocolate and a can of whipped cream on the table next to his bed. It had turned out to be fun, if rather messy, but it also gave Nick the sneaking suspicion that Greg was trying these things out for the first time as well. He wasn't going to tell Greg that, however, he was starting to enjoy these impromptu 'lessons' himself.

Bringing his mind back to the present was Greg's nose- nuzzling into his stomach and making it flip. "Stop trying to flatter me- you shouldn't be- oh! god." The provocative cool air had been replaced by humid breath and a gentle, silken tongue.

Nick gripped the steering wheel tighter and tried to fight the desire to press his hips up and deeper into Greg's dangerously eager mouth. A muffled laugh coming from the region of his groin indicated he wasn't controlling this desire very well.

Willing his muscles to relax was necessary if he intended to make it back to Vegas without incident, yet he couldn't resist placing one hand on the back of Greg's neck to apply some gentle, but insistent, pressure. A humming moan came from Greg, vibrating Nick's cock in a maddening way.

Drive. Pressing against the headrest, Nick vowed to keep his eyes focused on the road, no matter what Greg did. The motion of Greg's head in the bottom of his field of vision was distracting, but he could ignore it. He could ignore the wet, slick sounds of Greg's mouth. He could ignore the motion of Greg's hands between his thighs and around the base of his cock.

He could do all those things, he could, he could, he could - until Greg sucked harder, creating amazing suction as he pulled up. The friction was almost unbearable and it ripped a gasping cry from Nick.

Greg did it again and again, using soft lips and tongue to soothe on the way back down. As the pressure built, Nick released the accelerator, slowing the truck, realizing he would need to stop after all.

"Greg, wait! Please, I gotta.. pull over." Greg did as he asked, content with nuzzling Nick's thigh, the large muscle hardening and softening under his touch as Nick worked the brake.

Slamming the Denali into park and killing the lights, Nick let go of a heavy sigh. Greg's large brown eyes were looking up at him and Nick was positive he was smirking. Curling his hand into Greg's shaggy mane, Nick growled, "It's best to finish what you start."

Unfazed, Greg winked before taking in as much of Nick into his mouth as he could. Nick groaned in response and true to form, he felt another humming buzz from Greg. A moment later, the suction was back and this time Nick didn't fight any urges. His hips thrust upward as the hand in Greg's hair slipped down to his back. Heat flashed from the top of his head to the tips of his toes and he cried out his release as Greg swallowed convulsively around him.

Pushing himself into a sitting position, Greg grinned at Nick's limp form in the driver's seat. "All done. Sir."

Not bothering to open his eyes, Nick responded, "Mrumph."

"Guess I'll be driving the rest of the way back to the lab, then."

"What possessed you to do that?"

"A better question is, 'why not'?"

Nick laughed, tired and spent. "Ok. I get it." Tucking himself back in, he noted his limbs felt like useless taffy. "I hope you're serious about driving."

Greg flipped up Nick's armrest and turned to kneel in his seat. "Slide over and get comfy, I got this."

Nick lifted his butt over the console and plopped down in the passenger seat sideways, Greg stooping over him. Being this close, it was impossible not to see the exhaustion in Greg's face. "Are you sure, G? I could-"

Greg shook his head, interrupting, "I may be tired, but I'm not post-coital."

"So it's ok to drive while in the act, but not just after?"

Greg closed the few inches gap between them and pressed a soft kiss to the side of Nick's mouth. "Stop trying to be logical and just enjoy the afterglow, Nick." Then he maneuvered himself into the drivers seat as Nick dragged his feet out of it.

"Greg?"

"Yeah?"

"Just how heavy was the lifting?"

Laughing out loud, Greg flicked the headlights on and put the Denali back in drive. Laughing himself, Nick stretched out with the seat back and completely missed the rest of the ride back to the lab.