Title: Darkness Moves
By: it-glitters
Pairing: Greg/Nick
Fandom: CSI: Vegas
Rating: NC-17
Warnings: violence, rape/non-con, other pairings
Summary: Greg's in control of Nick and not much else. Dark Greg fic - warnings for bondage and dominance issues. Pre-Grave Danger.

***

Greg repositioned himself in his desk chair – spread his legs a little wider to give Nick better access. Greg roughly grabbed his lover's bobbing head in order to get him to slow down a little bit.

"Nicky, do you like it when I do that?" Greg asked angrily.

Nick tried to pull up to answer, but Greg just held his head in place. "Stop that, Nicky. Do your job."

Nick struggled against the ropes that bound his hands behind his back, but Greg had tied them too tight. He tried to moan, but it just angered Greg and he would thrust harder into Nick's throat. Nick was getting tired – his jaw hurt, his arms hurt, and his dick hurt. Greg had gotten him excited and then put on a cock ring so that Nick would be denied pleasure.

Nick could tell that Greg was close. They had been doing it long enough that Nick could always tell when Greg was about to cum. Nick decided no matter how hard it was on him, he would give Greg exactly what he wanted – he would make Greg happy, so that he wouldn't be mad later. Despite the difficulty of it, Nick opened up his throat and let Greg fuck his face until he came.

Finally Greg let up and Nick was able to slide to the floor – relieving some of the tension that had grown in his joints. Nick knew better than to lie down, so he sat Indian style at Greg's feet and watched Greg come down from his high. He waited for Greg to acknowledge him and his needs.

"That was very good, Nicky. You're getting much better." Greg was standing now, fully taking off the pants that had previously only been opened at the crotch to give Nick access. "I suppose you want your reward now?"

Nick swallowed hard and nodded as Greg lifted him to his feet. Greg still had his shirt on, but Nick had been undressed since he came into the house. It was Greg's rule – when Greg was in the mood, Nick would be naked unless told otherwise. Nick was never dressed in Greg's house – because he was never invited over when Greg wasn't in the mood.

Greg undid the bindings and laid Nick onto the bed. "I think I'll ride the cowboy tonight – does that sound good to you?" His voice was laden with lust and desire. Nick tried to be strong against it, but the thought of Greg riding him drove him crazy.

Nick lay on the bed and put his hands up like he was supposed to and waited for Greg to retie the bonds around the headboard. When he was done, Greg finished undressing and poured lube onto Nick's waiting cock. Nick wished that the cock ring could come off – but he was too afraid to ask Greg. If Greg got upset, Nick would be banished and he wouldn't get Greg at all.

Greg didn't prepare himself at all – he liked it rough, but it hurt Nick too. Greg was almost too tight to bear, but Nick just gritted his teeth and waited for the pain to pass. He forced himself to keep his eyes open – he wanted to watch the show. It was so rare anymore that Greg would let himself go and just enjoy the ride – which Greg was starting already.

Greg leaned back on his hands and took a semi-crab like position over Nick and began to raise his body up and down. There was still sweat on his body from his previous orgasm and in the dim light of the room he looked almost ethereal. Nick wanted to touch so badly – but his hands remained bound – he was being punished for trying to touch Greg too much at work. This was his punishment – Greg would take all the pleasure and leave Nick to suffer.

Nick could see Greg's arousal growing again and he seemed intent on cumming from just having Nick's dick in his ass. It was going to be a long night for Nick, but he took pleasure in seeing Greg so free – not caring about the rest of the world. He was yelling and thrusting like he used to, when they had first started all this. Nick wished he could have called it a relationship – and it was, when it started, but it had quickly turned into sexual deviance. Greg had shown his secret dark side – a side that Nick had never known had existed. Nick would have never guessed that the free spirited kid from the DNA lab could have become the brooding CSI that sometimes scared Nick.

He listened to Greg scream for him, and was then shocked when Greg stopped his bouncing. Nick was worried that he had done something wrong – something that would have upset Nick – like thrust too hard or not enough. He never knew, and it was hard to gain the proper leverage when bound to the bed.

"Greg..." Nick tried to talk like a normal person, but it just came out like a guttural moan of Greg's name. He had been hard for two hours – most of the time spent with the cock ring on. He felt Greg pull off of him. He had done it now – it would be like last week when Greg just left him there because he decided after he had gotten Nick hard that he was no longer interested in sex. Nick had lain there for three hours waiting for his hard-on to die down while Greg was in the other room watching a movie.

"Nicky, you've been so good to me." Greg was in one of his good moods. "Just be quiet while I take this thing off of you so that you can cum in my ass."

Nick moaned his response – which set Greg off.

"I said be quiet!" Greg yelled as he put the ball gag into Nick's mouth. "You can't even take a simple order. If I wasn't enjoying your dick in my ass so much I would let you sit here alone, like the bad lonely boy you are." And then mean Greg was back.

Greg tapped on Nick's knees, signaling that he wanted them up so that he could have a semi-backrest while he finished riding Nick. He slid back onto Nick – it was better this time – not as tight and with much less pain. Without the cock ring, Nick knew that he couldn't last long – so he hoped that Greg was close to his second orgasm – because it was the second rule – Greg always came first.

Greg was riding him like a man possessed – Nick had to bite his lip to the point of bleeding to keep from cumming. Greg looked beautiful thrusting above him and was doing things with his hips that Nick believed should be illegal.

Nick had closed his eyes – he couldn't look at Greg anymore – it was too much. He tried to detach himself from his body so that he could enjoy it to some extent and not focus on upsetting Greg. Once Greg came, Nick would be given free reign to cum. But not until then.

Finally, Nick's prayers were answered when he heard Greg scream and felt a hot wetness coat his face. Greg was done – and he would be happy – he loved when he managed to shoot onto Nick's face. Nick took it as an opportunity to get his – for once.

He barely made a noise when he came – mostly because he was still gagged. He felt his eyes roll back in his head before he blacked out from a combination of pleasure and lack of oxygen.

....

When Nick woke up he was unbound and being bathed with a cool washcloth. Good Greg was back – the Greg that liked to take care of him. Nick must have done something right – he just wished he could have pinpointed what it was. But, there probably was nothing that he did or didn't do. It was just Greg's moods.

***

Next story in series - Perfect Deviant.