The Ultimate Deception

Summary: As Annette and Sebastian's relationship becomes strained his feelings for Kathryn deepen during a night out.

Chapter 8: A Perfect Night

"So where exactly are you taking me?" Kathryn asked.

Cradling the phone against his ear Sebastian couldn't help but smile as he told her "you'll see it's a surprise."

"I don't like surprises"

Although he couldn't see her he could tell she was pouting on the other end and it just made him smile more. "Look I promise you'll have fun."

There was a pause on the line before she finally gave in "ok but what should I wear?"

"What ever you like"

"Well is it a casual place or dressy. Ooh is it that new place that opened on Lexington?"

"No and stop hinting for clues you'll find out tonight. Just be ready by eight. Where are you by the way?"

Kathryn sighed "shopping with Bethany. I'm bored out of my mind. I'd much rather be home with you" she told him coyly.

Sebastian smiled as he leaned back in his chair "I don't know you wore me out this morning. I could barely walk after our shower together."

"Pussy"

"Bitch"

She laughed "I'll be home soon and if you're a good boy I might let you play with me before we go out."

"I can't wait. I miss you"

Even as Sebastian said it he couldn't believe. Not because it was so unlike him to say sappy shit, which it was but because he meant it. It had been several weeks since they had slept together and his feelings for Kathryn had only grown. With their parents gone they spent nearly every minute in each others bed. In some ways it seemed like they were playing house. They could do what they wanted and so they did with little thought paid to their parents or the fact that Sebastian still had a girlfriend.

It was that particular thought that was weighing heavily on his conscience along with his true motives behind starting a relationship with Kathryn. Sometimes at night when he was watching her drift off to sleep or after she was coming down from an orgasm he would think about what he was keeping from her and he would always be tempted in those moments to tell her the truth. However he never did partially out of fear at how she would react and largely because of his feelings for Annette.

While his relationship with Kathryn was only blossoming his relationship with Annette was starting to wither somewhat. It wasn't like it was completely falling apart, they did see each other. It was just when they did there always seemed to be something awkward about it. Annette always wanted to know how things with Kathryn were coming along. It wasn't like Sebastian could tell her the whole truth so he told her part of it. He told her they were getting closer and that Kathryn was starting to trust him. He purposely left out the fact that not only was he sleeping with her on a regular basis but he was also starting to fall for her as well.

Ever since their first night together Sebastian had never once told Kathryn he was in love with her. He told himself he didn't say it because it was an unnecessary lie but the truth was he was worried it might not be. Sebastian's feelings for Kathryn had always been intense. She had after all been his prime obsession through most of his adolescence but in the past few weeks his passion for her had grown to new heights. It wasn't just the sex, which was amazing but the fact that she allowed him to see parts of her she never showed anyone else. They still bickered and spared regularly but occasionally real feelings emerged.

"Oh I have to go" she told him interrupting his thoughts "Bethany is getting impatient. I don't suppose you'll give me one last hint?"

"No you'll just have to wait for tonight. I'll see you then."

"Bye"

As Sebastian was putting the phone back in it's cradle a voice behind him asked "what's tonight?"

He turned around to see Annette standing in the doorway with a worried expression. "Hey" he smiled "what are you doing here?"

"I thought I'd stop by. I've barely seen you all week. Are you going somewhere tonight?"

Sebastian shrugged trying to make it appear casual "it's no big deal. I'd just having dinner with Kathryn."

"Tonight?" She asked as she stepped into the room "but we're suppose to go to that exhibit at the Met tonight. Don't you remember? I got the tickets weeks ago."

Actually he had completely forgotten. He had been doing that a lot lately as far as Annette was concerned. "Oh baby I forgot. Can we do it another time?"

"It's only for tonight Sebastian. God I can't believe you're canceling to go out with her."

He let out a deep sigh as he tried to control his temper. "You're the one who wanted me to continue the plan and that's what I've been doing."

"Yes but you also said it wouldn't come between us."

"It hasn't"

Annette walked up to him and turned him around so he faced her "yes it has. I never see you anymore you're always off doing something with Kathryn."

"That's not true" he told her even though it was a lie. He had been canceling on her a lot lately. Sometimes he just forgot they made plans and other times he canceled on purpose because he rather stay home and fuck Kathryn then spend a night at the theater. "Look Annette if you want we can call off the whole thing now. I'll drop Kathryn and you and I will go out tonight."

"That's not what I want. What I want is her out of out lives. Just tell me one thing, you're not sleeping with her right?"

For the first time since they got back together Sebastian looked her in the eye and lied. "No of course not. We barely even touch. With Kathryn it's usually just a lot of teasing."

Annette sighed "good, then I'm sorry I'm making this hard on you. I know how you feel about Kathryn and I realize how tough it must be for you to be around her all the time after everything she's done."

He shrugged "it's not that bad, I manage. So are you ok about me not being able to go tonight?"

With a strained smile she said "yeah I'll just ask my dad to go or something. Do me a favor though, call me when you get back and tell me how it went."

"Sure"

"So I take it the plan is working then. Has she told you she loves you yet?"

"No she hasn't" Sebastian admitted which was in fact the truth. "But she's starting to trust me. I'm probably the only person on the planet she trusts."

"Good. You think everything will be set by the time of your parents party?"

Sebastian looked off as he told her "yeah it should work out perfectly."

Stepping into his arms Annette wrapped her hands around his as she said "then it will just be me and you, just like we planned."

Forcing a smile he agreed "yes just like we planned."

* * * * * *

"Ok we're here" Sebastian announced as he pulled his jag up the long winding driveway.

"Your fathers country house" she said both surprised and confused. "What are we doing here?"

He smiled "you'll see."

Sebastian drove up to the front of the house then hopped out to open the passenger side door for Kathryn. As he did he admired how beautiful she looked in her long silk white dress with a plunging neckline. Her dark hair was swept up on top of her head and she wore only a simple diamond tennis bracelet around her wrist. Sebastian didn't think she could look anymore perfect. Taking her hand he helped her out of the car. "Have I mentioned how incredible you look tonight?"

She smiled "yes but feel free to do it again." He kissed her neck gently making her whimper. "Hmm that's nice but I want my surprise."

"Then come along" he said pulling her hand towards the back lawn.

"What you have to show me is outside?" She said growing annoyed with the game. "Is this some sort of...holly christ" Kathryn exclaimed as they arrived at Sebastian's surprise.

Spread out before them was a beautifully arranged table set for two. Only a few feet away were several servants standing by a large serving tray filled with a four course meal. To the left of them was a full orchestra who upon their arrival began to play. Amongst all of this beautiful white lights hung throughout the trees illuminating everything.

Sebastian smiled at Kathryn's stunned reaction. Wrapping his arms around her waist he whispered "well do you like it?"

"When did you do this?"

"Yesterday come on" he took her hand and led her to the table. Sebastian pulled out her chair then took a seat across from her. As one of the servants poured them some vintage wine that Sebastian had picked out himself, he couldn't help but notice how quite Kathryn was being. "Everything ok? You haven't said anything."

"It's just...no one's ever done anything like this for me before."

For some reason her admission surprised him. Kathryn had her fair share of boyfriends and while some of them might have been pricks he would think most of them worshipped her enough to do something special for her at least once. "Come on I'm sure that's not true."

She shook her head "yes, yes it is. And even if a guy did they expected something in return. Usually something pertaining to me on all fours."

Sebastian smirked "well the nights not over yet."

Kathryn returned the smile as she sipped her wine and seemed to relax. As they started in on their meal she asked "so why this place? Not that I'm complaining..."

"Well it's where we first met"

"No it's not" she told him. "We first met at that party in the park."

"That was our first official meeting. The first time I saw you was here during one of my fathers parties. I was fifteen and you were fourteen."

Kathryn set her fork down and laid back in her chair. "Ok I don't remember that. I think I recall the party I just don't remember you being there."

He shrugged "well because I wasn't...technically. You see I had just arrived from my mom's in Paris. I didn't want to stay with my father and he insisted on me attending his party so he could introduce me to everyone. Well that wasn't very appealing to me so I went and hid upstairs" he told her as he turned around and pointed to the top floor of the house. "Anyway I was up there watching everyone arrive when suddenly this absolutely stunning girl arrived wearing a white dress."

"I always did have exquisite taste."

"I didn't say the girl was you"

Kathryn smiled "continue."

"So this girl, beautiful with dark silky hair and green eyes walked in. She was poised, and graceful and probably had more confidence than anyone in the room. I was convinced she was the most amazing thing I ever saw."

"Well why didn't you talk to this girl?"

"I wanted to, badly but I had no idea what to say to her."

"The infamous Sebastian Valmont was afraid to talk to a girl?" she asked amused.

"Well she wasn't just any girl and lets just say my way with women hadn't yet kicked in. So instead of introducing myself I stayed upstairs and watched her the whole time. I don't think I ever took my eyes off her once."

Kathryn smiled "well what every happened to this girl?"

Sebastian shrugged "I don't know I heard she got fat and married a stock broker."

At that she chucked her napkin at him and he caught it. "Very funny. Is the story actually true?"

He leaned across the table and completely serious he asked "what do you think?" Kathryn only smiled in response. "Do you want to dance?"

"Yes"

Sebastian got up from his seat and cued the orchestra who immediately began playing a different tune. Taking her hand he led her to the dance floor he had set up. They held each other tight as they glided around gracefully. "This really is perfect Sebastian" she whispered.

"You deserve it" he whispered back as he kissed the spot under her ear.

"I'm sorry"

He looked at her curiously "for what?"

"For everything. All the things I've done to you, said to you" she gave a him a small smile "will probably do to you."

Sebastian shook his head "it doesn't matter anymore. It's in the past. All I care about is now."

For the first time since he'd known her Kathryn's eyes seemed to sparkle as she leaned in and kissed him. Wrapping his arms even tighter around her Sebastian returned it. The band continued playing even as Kathryn and Sebastian stopped dancing. It seemed nothing would interrupt their kiss until the rain began to fall and the thunder started to roll.

Neither seemed to notice at first since they were both so wrapped up in one another. Finally though they broke apart and Sebastian groaned "dammit."

They both started for the house but after realizing Kathryn's dress was about to get ruined Sebastian picked her up into his arms and carried her the rest of the way in. Once inside they retreated into the large living room where all the lights were turned on. "God I'm sorry about this. Figures the one thing I didn't plan for."

To his astonishment Kathryn didn't seem that bothered or upset by the interruption. "It's fine Sebastian."

Looking her over he couldn't help but smile as she stood there dripping wet, shaking trying to be pleasant. "You're allowed to be pissed."

"Ok fine it's annoying and I'm still hungry, happy now?"

He nodded as he began rubbing her arms "you're cold. I'll start a fire."

Kathryn snickered "when did you turn into a boy scout?"

"Oh probably around the same time you started being polite" he told her as he opened the fire place. "I'll have someone bring us in something to eat." Once he got the fire started he asked "is there anything else you want?" As Sebastian turned around his mouth fell open at the sight of Kathryn standing in front of him completely naked wearing a coy smile.

"Only you" she whispered as she walked over to him and knelt down beside him on the floor. Sebastian pulled her onto his lap and kissed her passionately. Without a word she began to undress him until he was completely nude. Gently without breaking from his mouth, she pushed him onto his back and positioned his erection at her entrance.

Before he could enter her however Sebastian slid his hands up her thighs and flipped her onto her back. Kathryn let out a laugh that quickly changed into a moan as he started kissing down her body. Sebastian licked, sucked, and nibbled on every inch of her until Kathryn was begging him to fuck her. He gave in to her request as soon as he thought she had been adequately teased.

Sebastian thrusted into her with deep hard thrusts while Kathryn's legs wrapped tightly around him. They fucked until both reached their peak and before either could catch their breath they started all over again only this time it was more gentle and sensual.

When they were both too worn out to continue Kathryn laid exhausted on Sebastian's chest both naked except for his jacket which Kathryn had thrown on afterwards. The couple rested silently listening to each other breath. Finally Sebastian asked her "what are you thinking?"

She sighed "just that...I think this is the first time in my life that I've ever been completely satisfied."

Sebastian grinned "it was good for me too baby."

"I didn't mean just the sex." Sitting up on her elbow she grinned "but that was very nice. I meant this is the first time I've ever felt truly happy. Here with you."

Not for the first time that night a feeling of guilt fell upon Sebastian. Not only did he have a girlfriend who he supposedly loved but he was secretly plotting to ruin Kathryn. This was all just suppose to be an elaborate rouse but some where along the way it became very real. Sebastian couldn't be sure what he felt for Kathryn, if it was truly love or just a long standing infatuation but either way he was terrified that he would inevitably end up hurting her.

Staring into his serious face she asked "is something wrong?"

"No nothing it's just...you're amazing. Sometimes it seems as nothing has changed, you're still that girl I watched threw my window."

Kathryn laughed "oh so you admit that was me?"

"I admit nothing"

She kissed him softly and as she pulled away she let out a groan. "Oh god I don't want to go back home."

Sebastian laughed "you'd get bored here eventually."

"Probably" she admitted "but I don't want to go back to that life. The one where I'm your step sister and you have a girlfriend."

"It is reality" he told her solemnly. "We could stay overnight if you want."

Kathryn sighed "no we probably shouldn't. Someone might suspect something" she said meaning Annette.

That reminded Sebastian that he was suppose to call Annette. Suddenly he didn't care so much. Caressing Kathryn's hair he told her "ok if that's what you want. We should probably go soon then."

Sliding up his body with a wicked grin she said "well I think we have time for one more round."

* * * * * *

"So did you enjoy your surprise?" Sebastian asked her as they stepped onto the elevator that led to the ground floor of the townhouse.

Sliding her arm around his waist she nuzzled his neck and purred "very much, thank you."

"Oh I think you thanked me plenty" he laughed referring to the blow job she gave him on the way home.

Turning to him suddenly very serious Kathryn said "Sebastian's there's something I have to tell you."

He caressed her face and asked "what's that?"

She hesitated a second before saying "I think...I mean I know that I...um...that I-"

Immediately Sebastian knew what she was going to say and he was terrified about how he would answer her. Luckily before she could finish the elevator doors opened. Grabbing her hand he said "oh we're here."

Kathryn stared at him curiously as he led her to the living room "is something wrong?"

"Oh course not I just can't wait to get to my room so I can finish ravishing you" he told her with a grin that betrayed his sudden anxiety.

However is anxiety jumped about ten notches as they entered the living room to find their parents. Immediately Kathryn and Sebastian pulled away. "Mother what are you doing home?" Kathryn asked nervously.

"I live here dear" Tiffani said icily

"You guys are home early" Sebastian noted.

"Yes well your step mother wanted to come home early to plan her party." Eyeing his son and step daughter he asked "so where have you two been all night?"

- to be continued (Please Review)