It was Saturday night and Katherine Beckett had been waiting for so long. She was kind of impatient because it was her turn to come up with an idea for the night. That special night in which Castle and Kate each took turns in a role-play. She hurried to dress herself in tight black leather. She put on a short black leather elastic waist flare skirt and a sexy black leather zipper corset top. Then she put her trench coat on and waited for Castle to show up. She was getting impatient with each minute she spent waiting for Castle. She thought that he would really like the surprise she had prepared for him. In fact she was sure that he would love it. But that was not the point of course, because she didn't want to reward him, she wanted to torture him. Just like he did the previous Saturday night.

The doorbell rang and Kate quickly opened it.

"Are we going out?" Castle asked after he looked at her from head to toe, looking a bit surprised that she was wearing a coat.

"No, Castle. Come in," she invited him in, closing the door behind him.

"Soo... what are we playing tonight?" he asked giddily, rubbing his hands together with excitement.

"Come to my bedroom and I'll show you," she said, taking his hand, leading him the way to her own bedroom.

"Is the surprise in your bedroom?" he asked in a state of excitement, wondering what could possibly be her surprise.

"Yeah," she nodded and bit her lower lip, looking at his reaction.

"Let me guess..." he said and made a small pause to keep her in suspense, "Is it a toy!?" he declared almost matter-of-factly, entering in her bedroom as if to see it for himself. But there wasn't anything there. So he started looking around, searching the room with his eyes.

"It's not a toy, Castle," she said, taking his head in her hands to make him stop looking for something. When she said it she saw that his enthusiasm started fading away but she knew it wouldn't be for too long.

"What... what is it then, Kate?" he asked.

She bit her lips, suppressing her want to tell him everything right away. She started kissing him, making him stop talking and wondering. And mostly - guessing. If he started guessing again, she knew that he wouldn't stop until he guessed correctly. And that wasn't very likely to happen any time soon. So she deepened the kiss, sliding her tongue to caress his. She definitely like the way she could make him stop talking any time she wanted.

He moved closer, pushing his body against hers, grabbing her neck in burst of passion. He bit her lip and then he went to kiss and lick her neck. His fast, rushed kisses all over her neck made Kate almost loose a grip of herself. Castle reached out to unfold her coat but she quickly pushed his hand away, folding it back tightly.

"Not yet," she breathed out and then she continued kissing him.

After that she made him sit on a chair she had prepared before that. Then she reached for his hand, pushing it behind his back and before he could say a word, she tied his hands up with a scarf.

"What are you doing?" He exclaimed, looking around, searching for her face.

Kate's knew that Castle loved her body. He savored it every single time they were together. So she figured the best way to torture him was if he wouldn't be able to touch her. That was going to be her revenge. "No touching tonight," she stated calmly, "at least not for you." She looked at his face and winked at him playfully.

"Ooh, kinky!" he exclaimed, giving her a content smile. "But that's not fair!" he added, whining. "I love touching things. And you know that," he said matter-of-factly and looked at her with his deep blue eyes, studying her face. "Especially your things," he added with a smirk, emphasizing on the word things, looking at her suggestively from head to toe. The way he said the word things, the way he was staring and smiling way too smugly made Kate's heart flutter. "And I thought you liked it, too."

"Not tonight, Castle. Tonight I am the one who gets" she started saying seductively, making a pause as she traced her finger along his chest, "to touch things," she finished off her sentence and then she looked down suggestively, biting her lip.

"B-bu-but Kate," he stuttered at a loss of words, distracted by her wandering hand. She put her forefinger on his lips to silence him.

"Be a good boy and I might change my mind," she said, putting away her finger. Then she gave him a quick peck on the lips. After that she went away from him, leaving him hanging.

"I'll be at my best behavior," he promised her, smiling at his joke. Even he couldn't believe his own words.

At that time Kate pulled out her cell phone and started searching a specific song. The surprise she had prepared for him.

"What are you doing?" Castle asked, surprised by her behavior. "Now it's not the time to play angry birds," he joked, looking at her expectantly.

In that very moment Kate played a song from her cell. And when Castle heard the music he immediately recognized the song "You can leave your hat on". He quickly got excited by whatever was coming next.

"Kate, what are you doing?" He had to ask because he couldn't believe that she was really doing it. If she was doing what he was thinking. But it was kind of obvious what she was about to do.

"Striptease," she declared, pronouncing the word in such a teasing way, slowly, letter by letter. Then she unfolded her coat and slowly took it off, swaying to the rhythm of the song. Then she started dancing more seductively, looking straight into his eyes.

Castle's hungry eyes immediately searched her whole body inch by inch. He saw that she was dressed in a strapless black corset with a matching skirt. And when he saw that tempting view his eyes nearly popped out. She was looking smoking hot. She looked like she came out from one of his darkest, wildest and kinkiest sexual fantasies. Her outfit was so tight around her body - the skirt highlighting her long and beautiful legs; the corset was highlighting her curves; and the shoes - her posture and of course, her ass. She looked so hot, confident and the way she moved her whole body - he just loved it. She was slowly swaying to the rhythm of the song and he was enjoying every second of it. In fact he was enjoying it way too much. And that was just the beginning.

Kate just loved Castle's reaction when she stripped her coat off. He started staring at her intently, looking like a dog - his mouth half-opened and his eyes wide open, not blinking even for a second. His look was filled with lust and he looked like he was hungry for her body. Even starving if she judged by his feral face. But she knew that she could get such a reaction from him. In fact, she hoped she would get an immediate response from him. So she continued dancing, slowly and seductively, holding Castle's steady gaze while she swayed her whole body to the sexy rhythm of the song.

After a few seconds of dancing, Kate slowly went closer to Castle. She put her long beautiful leg on his chair right in the middle and started taking her stocking off. Slowly. Seductively. Inch by inch. Right in front of his watchful and hungry eyes.

Castle was starting to feel the consequences of his punishment. Because that was what she was doing to him - punishing him. Probably because of the previous Saturday night. It was real torture to watch her do such things and stay calm. And mostly, to restrain himself from touching her. Because he wished he could. He even considered begging her to let him touch her but he just bit his lip. He just enjoyed the show she was making specially for him. After she took her stocking, she immediately put her other leg on his chair and did the same thing.

Kate was still dancing, just a few inches away, looking at Castle and his hungry eyes. She took her corset off, revealing her black laced bra that left almost nothing to the imagination.

"You like it?" she teased, and winked at him.

"Oh, I love it. So very much," Castle answered enthusiastically, reassuring her, not taking his eyes off her even for a second.

"You won't like the panties though," Kate said and made a pouty face, looking at him.

"Why?" He asked surprised, his eyes fixated on the sexy body in front of him.

She leaned closer to Castle and whispered the words "Because I am going commando." She answered him playfully and looked at his face, biting her lower lip.

Even the sight of Kate in black leather was enough torment for him but to know that she was all naked underneath the skirt - that thought was beyond a huge turn on. And it was a real torture to know that he couldn't touch her, and feel her, or see it for himself. Though he really wished he could.

The music was still playing, and Kate was dancing slowly, making a show specially for Castle. Then she sat on his lap to get him a better view. She haven't even touched him yet but she could already feel the hard evidence of his arousal. She loved that fact that just one sexy outfit and a few teasing words could get him in this state. Immediately. He responded to every single tease no matter how innocent and pure. He just adored her, she could tell that. And she really loved it.

Castle grunted with frustration when Kate sat on his lap. All he could think about was her body. And the fact that she wasn't wearing any underwear underneath her skirt. It was driving him crazy. Kate definitely knew how to make him wild.

Kate got hot and bothered just by the immediate respond of Castle's body and by the contact of their bodies. Even though he was still wearing his pants. she could feel a certain heat between her thighs. She danced a while, grinding against him, and then she got up a bit halfheartedly, against her will. But she just had to do it. She wasn't done undressing. She wanted to tease him some more. To torture him a bit. Just like he did the previous Saturday night. That night he had been teasing her bit by bit, even torturing her. He had been teasing her so slowly and for so long that she had to beg him to do something. And now it was his turn to beg. It was time to give him a taste of his own medicine.

Slowly and seductively, still swaying her hips to the music, she unfolded her bra. She took it off confidently, and just tossed it around carelessly. Then again she went closer and sat on his lap, facing him.

"What do you want to do to me, Castle?" she purred in his ear and took his earlobe in her mouth, licking and sucking it.

"I wanna brush my lips against your breasts. I wanna run my tongue around your swollen nipples and then take one in my mouth," he was talking dirty to her, looking in her hazel eyes while she started touching her own breast. She had grabbed him by the neck with one hand and the other one was put in a good use, touching her own breasts, teasing her nipples. "Then I will tug it lightly. Just the way you like it," he said huskily as she did what he said, tugging her own nipple lightly, moaning in his ear.

She was in his lap, touching her breasts, teasing her own nipples right in front of his eyes. Her hips were stroking his own with desire and she was moaning in his ear and that was the best view he could wish for. She was hot and bothered, touching herself right in front of him without any shame.

"What else do you want?" she asked with a deep husky voice, ready to do whatever he said to her.

"I wanna touch you. Untie me, please." He begged her, hoping she would do it. He wished that she would take pity on him and just fulfill his desire. That was all he wanted at that moment. To feel her hot skin and touch her body, and kiss every inch of it.

"Nu-uh. No deal," she refused his wish, shaking her head. "Not even if you beg. But you can taste them," she said and bent closer, putting her breasts in front of his mouth. He bent his head slightly and eagerly started teasing her nipple with the tip of his tongue. He was licking it and then put it in his mouth, greedy for more.

She was rocking her hips, pushing her breast further into his mouth and he just loved it. She was so damn hot and even though he couldn't touch her and feel her, he enjoyed the soft moans that escaped her mouth every single time he ran his tongue around her sensitive nipple. He just loved it. He loved that every time he tugged one of her nipples lightly she would moan loudly and her nails would dig into the skin of his neck.

Kate was going wild. Out of passion she wanted to rip his pants off and just feel him inside her. She was definitely ready for that. But she repressed her want because she wasn't done teasing him yet. She moved her hands away from his neck and started undoing the buttons of his shirt and then she unfolded his pants, placing wet kisses all over his chest. She started sliding her hand through his waistband, down his boxers until she reached him.

"Ohh, Kate," Castle grunted the minutes she touched him. And she started stroking him, enjoying the way Castle looked - so aroused, lust spread all over his face, his dark eyes watching at her intently. He had no way to avoid her sweet slow strokes, he had nowhere to go. Not that we wanted it anyway. He desperately wanted to touch her, she could tell. But she wasn't done with him yet. She got up and she quickly got rid of his pants with a little assistance from him. Then she knelt in front of him, looking straight into his blue eyes as he arched his head, swallowing hard, well aware of her intentions.

"Kate. Please," Castle gasped the minute he felt her playful tongue on him, as she tasted him. But she ignored him, continuing with the sweet torture, slowly and steadily, taking her time. She wasn't in a hurry, he could tell. But he was. He desperately wanted her. "Kate, please. I wanna fuck you," he begged her once again but his dirty words didn't do the trick. She wasn't going to stop until she made him come.

She was stroking him gently, her tongue matching the movements of her hand. He was grunting, moaning her name, looking at her intently. She didn't stop teasing him, licking and sucking him until he came.