Title: Opacity
Author: Toybox
Pairing: Nick/Greg
Rating: NC-17
Notes: Challenge Prompt for Rounds of Kink.
Summary: It can muddle things up or make them clear. . . it's all in the manner in which you look.

***

He was pretty sure that Nick hadn't walked in wearing them, all tall Texan in dark rimmed glasses, but the man was wearing them now, hunched over an open folder, no doubt his latest case, squinting at the perfectly neat rows of type set ten point Times New Roman. Slim, almost, delicate, black metal wrapped around Nick's face; the ends tucked neatly over the inner rim of his ears hidden partially by the low sweep of hair.

Greg had a chance to run a hand - singular and barely that - through the short cropped hair, jokingly asking the transplant CSI when he was going to make good on that idle talk about the heat and a good ole razor. At the time it had merely been something for a quick laugh, now the memory of the smooth texture sliding under his fingers was driving him to distraction. His imagination - cursedly vivid and apt to be more than a little wild - supplied him with an image of Nick on his knees with his mouth secured tightly around Greg's dick, cheeks hollowed, and dark, luscious brown eyes peeking over the flat rim of those damn glasses.

Greg tried to shake the image from his head barely biting back a moan as he clutched at the glass table in front of him.

Nick was sitting back now, a strong tan hand passing through his hair before dropping to the side to pluck the glasses off his face. Greg's eyes followed the path they took, gaze traveling down the curve of thumb and over the ark of the man's wrist. New movement had the tech looking away from the hand to watch the other curl against Nick's face. Another image assaulted Greg's vision. This one more powerful than the last.

Long muscled arms stretched high, wrists captured and bound above a thatch of brunette that was currently pressing into the pillow beneath. Glazed eyes stared up at him through the thin lenses of those damned glasses until another, almost brutal, thrust into the taunt, but compliant, body caused those lids to clamp tightly down and the most lewd of moans to bubble out of that sweet, sweet mouth. Another push into the overwhelming heat sent Nick arching off the mattress with a cry on his lip . . .

Greg was in so much trouble if Grissom, or anyone, walked into his lab right now. His traitorous imagination wasn't just supplying him with those deliriously sinful images, it was telegraphing phantom sensations of the delicate suction from Nick's mouth in one instance and in the next wrapping strong thighs around the DNA analyst's hips to draw his dick deeper into the tight velvet of Nick's body. And those glasses, those fucking wire frames, taunting him. He was so painfully hard that even the gentle brush of his lab coat sent a shockwave racing through his body. He had to escape, had to find some relief.

Thankfully he'd just started a run of samples so he had time to kill. Greg checked them just in case, made sure everything was running smooth, before tearing out of DNA, down the hall, and with a sharp right, throwing himself into the locker room. He retreated into the relative safety of the showers, pealing his clothes off as he staggered towards a clean stall; they littered the floor in front of the half bench that sat nestled against the wall opposite the showers. He already had his dick in hand before he even turned the water on.

He hoped any noise he made would be drowned out by the rush of water. What he didn't take into account was that any noise outside the showers would be muted to his ears as the torrent rushed over his head and down his back. It covered the sound of approaching footsteps and a rush of breath. Nick had followed his mad dash into the locker rooms and currently standing transfixed at the corner of the shower entryway.

Nick knew he shouldn't be here, shouldn't be sliding be violating Greg's privacy like this. His mind kept telling him he needed to leave because any moment the young man was going to hear him or turn his head just to the side and see him standing there, gawking. Obviously he wasn't listening to sound advice because he kept running his eyes over the smooth planes of Greg's body. He couldn't help himself. Try as he might the Texan's body refused to function properly, feet remained rooted, and eyes watching in rapt facination as a slender arm moved at a that seemed agonizingly slow over what he could only imagine was a straining erection from the sounds drifting past the white noise the water produced.

He hadn't realized he was rubbing his palm over the growing buldge in his jeans until he choked on a groan rumbling in his throat. And Greg heard it. He couldn't move, didn't know if it was even possible, as the frosted head jerked up into the spray and turned towards him. Slightly glazed brown eyes stared at him for a moment before widening in horror. Neither of them moved and for a moment it seemed that they didn't even breathed.

A rosey sheen of embarrassment colored either man's cheeks but only Nick managed a shy smile to cover. The Texan tipped his head to the side causing his glasses to inch down his nose. He stared at the naked figure over the edge of them. "You cleared out of your lab pretty quick there, G. Figured you'd doused yourself with something or other again."

"I-I. . .er, no." Greg squeaked.

Nick liked the way that the younger man wasn't trying to cover himself up, leaving Greg's body open and flushed for him to see. Brown eyes almost black with desire raked over the exposed flesh, his smile widening as his eyes continued south over a slightly heaving chest. The Texan licked at his lips quickly as he finished his very thorough once over and crawled back up along the body to once again look at Greg's face.

"You seem to be having a little trouble breathing,, you sure you're alright?"

That seemed to snap Greg out of the trance the tech seemed to have fallen in when he'd caught sight of Nick watching him and immediately slapped his hands over himself and shrank against the back wall, pulling himself out from beneath the water. Nick mourned the loss of that lithe figure beneath the spray but never lost his smile. Instead it grew as he took a step forward.

"Greg?"

There was a strangled sound coming from Greg followed immediately by what sounded like a whispered 'Fuck'. Nick agreed with that but was pretty sure that his friend wouldn't appreciate him mentioning that right now. He continued forward until he was blocking the opening to Greg's stall and called him again. Greg chewed on his bottom lip for a moment then tried for one of his usual cheeky smiles but failed; completely. Nick decided to take pity on him and moved back a few steps, turning his back on the man huddled in the shower.

"I think you've got the right idea though." His hands played at the belt secured around his jeans, loosening it then proceeding to shed his jeans as he kicked off his work boots. He had his shirt halfway up his chest when he heard another noise from the shower and turned his head to look over his shoulder.

"Wh . . .What are you doing?"

"At the moment I'm trying to take my shirt off." Which he did with deliberate care so he wouldn't knock his frames off his face.

Greg's eyes followed the shirt's descent to the floor and took great pains looking from it back to the nearly nude man now turned to face him once again. "Damn it, Nick, you know what I meant."

"Yeah, G. I know what you meant." His underwear followed the rest of his clothes. Nick started walked very slowly back towards the opening, making sure to keep eye contact with the younger man, to gauge his reactions and to know if what he was doing was alright. He knew it would be, he wasn't stupid. He'd seen the way Greg looked at him every time he walked past him, saw how vibrant the man's eyes shown when they were talking. Greg wanted him. However, that didn't mean he wanted this.

"I had a mind to share that shower with you." Nick kept moving until he was just opposite of the water pouring out of the showerhead, an arm's easy length through it to Greg. "Think there's enough hot water for the both of us?"

For a long time they simply stared at one another. Nick had a lot of practice being patient but it was getting increasingly hard - 'Harder.' his subconscious laughed. - to be this close to the man he was currently head over heels for who just happened to be naked! Then Greg's smile grew a little more genuine and Nick knew how things were going to end.

He nodded his head at the younger man then took a step back, a hand already reaching for his glasses; he was going to hang them over the small peg caulked on the tile outside the stall meant for hanging a towel but long fingers wrapped around the wrist and drew it down. Nick titled his head and lifted a brow in a questioning gesture.

"Would you, um. . .would you leave them on?"

***