Katie followed Mr Smith upstairs towards the VIP area... she was nervous; if Castle had not asked for her soon enough this could get messy. She kept walking up the stair case trying to breathe comfortably in the corset that was pushing her breasts up so high they were screaming to be touched.

Jake Smith opened a curtain to the VIP area and that's when she was walked right in front of Castle. She smirked a little; he looked fantastic in his black suit with a deep almost black purple shirt. She couldn't help but think it was the colour that would be on satin bed sheets that were used for dirty sex.

"Richard Castle, meet Katie." He smiled introducing them, looking into Katie's eyes, letting her know it was her job to make him happy.

"Hi Richard..." she smiled looking in his eyes while she accidently licked her lips.

"You can call me Rick, please take a seat in my booth I just need one moment with your boss" he smiled politely, watching her walk over to his booth. He watched her walk enjoying every moment of it, until Jake Smith interrupted his thoughts.

"Rick, what can I do for you?"

"I was wondering if you might have something I could get, maybe to enjoy the night a little more?" he asked nodding towards Katie.

"Sure I'll make sure you get something delivered to your table with your next round of drinks. What were you thinking?" he asked quietly

"I'd love 1g if you have it?" he asked referring to cocaine.

"Of course, it will be with you soon, my waiter will come and get a drink order from you soon. The rest will come out with your drinks in between a napkin. Please pull your curtains over a little while you take it he winked.

Castle walked back over to his booth where Katie was leaning back onto the couch leaning on her elbows facing him, her fishnet covered legs crossed facing him. He could see the boots, how high the heels were... it was easy to imagine them digging into his back while he was.... damn that was a good image.

"Katie, you're an amazing dancer..." he said moving in next to her. His booth was more like a big bed with a table in the middle and soft edges all around like a sofa. It was dark and surrounded by curtains... not much could be hidden but it gave the illusion of privacy.

She leaned in towards his body, crossing her legs towards him with one of her feet lightly rubbing his leg. He was already struggling to control himself, he looked into her eyes, he was unsure. He was definitely not playing the role he had to play.

Katie leaned in to his ear and whispered "Rick, remember your playing a role here, and you are not really allowed to be too shy, so play your role and do something with me" she looked over her body and back up to his eyes.

Esposito, Ryan and Captain Montgomery were in the van monitoring what was happening. Esposito laughed "man he is the luckiest man alive right now" he looked at Ryan

"Yeah true that, if my girl knew I got to watch that strip tease she would kill me, and if she knew how damn hot it made me she would make sure it hurt"

The captain managed to behave himself and just watched the monitors and listened to Kate Beckett try to seduce Castle...he smiled a little. "I bet she never thought she would be in this position with Castle"

Castle forgot he actually had to play a role, he was supposed to be the type of man who would pay for a woman, the type who would take full advantage of her being placed right in his arms.

Castle placed one hand on 'Katie's leg, feeling the fishnet stockings under his fingers he allowed his hand to move higher up her thigh. He enjoyed hearing her gasp and gave her a knowing look, the kinda look that said 'you asked for it'. Time to give Kate Beckett a taste of what he could do, no mister nice guy now... she was going to be teased till she begged for more.

"Mr Castle, your drinks order?" one of the waiters asked.

"I'd love to get a bottle of Dom Perignon Rose and two glasses thanks" he asked softly, knowing that some drugs would be coming with it and he would have to take some, as would Katie.

"It will be with you in two minutes" the waiter walked away.

If he was going to take advantage of the situation he wanted to at least show her a good time, he couldn't believe his luck. Katherine Beckett begging him to touch her, to do what he wanted with her...

Castle returned his attention to Katie, he rubbed her thigh again slowly, moving his hand up to her collar bone" he watched her chest rise with her deep breath. He slowly allowed his finger to slide down her chest slowly drawing a 'Z' shape across, letting every movement cross both of her breasts. He watched as she arched her back a little. He loved watching her reaction to his touch.

Katie knew this was ment to be her game, she was the one who was on strict orders to give him what he wanted and she knew she should prove herself to Mr Smith to get him off their backs for a little while. Katie was hired to please Rick Castle, she needed to prove their reason for being there.

The waiter came back with the champagne and two glasses, with a napkin which had a packet in between the folds. Castle reached the curtains and pulled them over, the sheer screen allowing them a little privacy, but not much.

"Katie would you like to join me for a line?" he looked a little concerned.

"I'd love to, would you like me to prepare it for us?" she smiled, taking control again. She moved her body towards the table to prepare the lines while Castle opened the Dom. She was so confident, he thought she might have done something like this before.

Castle pulled a note out of his wallet, a $100, surely just to show off and rolled it up ready to take a line. He offered it to Katie first; she took it and leaned down to take a line, allowing him a fantastic view of her behind. She leaned back while he took his first line, then handed her a glass of champagne.

Katie took a big sip of her drink and put it down, she slid back against the edge of the booth, sitting up her legs barely reached the table it was a massive area, obviously for the purpose of getting more than a little personal. She slid on leg over top of Castle's lap and moved her face up to his; she let her breath tease him while she barely touched him. Her hips were too high for him to feel her, but he moved his hands to her hips feeling her move with his hands.

He realised he had his hands on the woman he had been dreaming about for a long time, he had the power. She was there to please him, he shouldn't have been thinking about it too much, he realised his blood was starting to pool in places where it shouldn't. Katie slowly leaned her chest against his, he moved his hands up her waist feeling the roughness of the corset she was wearing then he felt her breath on his ear. She took the softest bite of the edge of it, and he felt that bite all the way through his body. "Oh god..." he realised he said that out loud, and knew she had a plan for tonight.

"Rick, do you like that..." she didn't want an answer, she already knew. "How about this" she said as she slowly grinded her pelvis against his, that is when she felt his growing erection. She took it away and let her hips sit above his body again; she kissed his jaw softly, making her way down his neck to his collar bone. Then dropped her hips down on him again and grinded a little harder, while she wrapped her hands around his neck and dropped her head back. He had a perfect view of her breasts almost falling out of her corset, she was grinding into him and it felt so amazing. This was more than an act...or if it was an act she was a brilliant actor. He moved one hand to the bottom of her corset and let his index finger play with the top of her panties... she tried to pull herself up but he held her where she was, her back arched over. He let his finger play over the front of her panties just above where her clit would be, allowing is nail to cause a rough sensation through the fabric.

Katie pulled herself back up to his face and rolled her pelvis so he could feel right where her sex was, he moved up towards her trying to get closer if it were even possible. His hands moving to her bottom feeling the place where her fishnets met her black panties.

Katie's mouth found Castle's ear again, moving her hips up off his body as she sucked it a little then gave it a tiny little bite. He moaned loudly and pulled her hips back down onto and let her feel how hard he was, he tried to grind against her to hit her clit. She moaned loudly, he smiled at the success, bringing one hand from her hips and letting her move more freely he used it to pull her face towards his. She let him, and he kissed her neck, letting the little bit of stubble he had left on his face rub against her neck. She moaned, the roughness turning her on. He couldn't understand what he was doing that was making her putty in his hands, was her neck a true weakness.

Castle decided to take a big chance and either turn her on more than ever or push her away he ran his hand up her back to her head and took a big handful of hair pulling it backwards. She gasped, but let him do it, he couldn't tell if it were because she liked it or because she was undercover. He moved his mouth to her neck and kissed a trail down to her breasts. Castle could see her breathing was erratic and he held her hips down against his, she moved both her arms around his neck and pulled him closer to her body.

That is when it happened - Their first kiss on the lips. It was an accident, she dropped her head to look at him and his lips captured hers. He knew she was shocked but as soon as it happened he felt her pull him onto her, in a move which almost spilt the champagne over. His left hand dropped down to her hips pushing her into the couch, now he had control. He grinded into her body a little bit more and then pulled both her hands together above her head with his left hand, Katie arched her back.

Castle took her lips in his and their kissing was so passionate he forgot they were undercover and just felt her body beneath his. One of his ultimate fantasies come true, he slid his right hand under the edge of her panties slowly waiting for any sign of her wanting him to stop. Instead he heard her moan, and take in deep breaths, he let his finger move over her clit, and her body did something he had not seen before. She started breathing shallow and fast, her hands were trying to be free but he held her tighter...he could tell loved it.

"Castle, maybe we should...." she trailed off as he started rubbing her clit in smooth motions, she knew he could feel how wet she was, how turned on she was. Her body couldn't take it anymore and she came completely undone her body shaking underneath him. The doors were opened fast on the ground floor and they heard the music stop suddenly.

"Police, NYPD guys this party is over tonight. Everyone stay where you are" they heard officers running up the stairs to find Jake Smith.

Castle moved his hands and allowed Beckett to get up, the illusion was over. But her face was flushed, and she was wearing the same sexy outfit, he couldn't take his eyes off her. She took a deep breath, "I'm going to pay for this" she said watching him.

"I'll be gentle" he winked at her. Kate rolled her eyes. Standing to straighten up her lingerie and Castle straightened up his clothing too. That was when Esposito looked inside the booth.

"You guys ready to go" he said looking at them, they looked a little nervous. This debriefing after this assignment would be incredibly awkward.

Please review! I hope you like it. This was going to be the final chapter, but I think I might have two more in me... first the de brief and then the first time together, without microphones etc involved.