A/N: Lack of good TV makes me an obsessive writer. This little idea popped in my head when I was the watching the piano hate sex in 4.07 but I never got to write it. Now that I am on a writing spree I realized it was time to write this thing.

Timeline: The story is cannon up to 4.07- War at the Roses.

Summary: What did Chuck Bass give to Blair Waldorf on her 20th birthday? A baby! Married couples pray for one, couples in love don't mind one but what does a couple in hatred do with a baby?

The first chapter basically takes place immediately after the piano sex. Right where the episode ended so here it is. Let me know if you think I should continue it.

…

It was a circle of self-inflicted abuse.

Like a moth to a flame and like a masochist to pain, she was drawn to him. Even the knowledge that he was heartless and evil and wouldn't blink his eyes before destroying her didn't matter. It was obsolete facts and didn't slightly negate the desire to have him within her embrace. It didn't make it any less true that she never felt the same pleasure with anyone else but him, that he knew her body better than anyone else and that she craved to have him inside her fuelling the fire.

He clutched her sweat-drenched body closer and let out a groan of pure satisfaction. His breath fanned her neck and she moaned digging her nails in his back, aching to have him closer. She arched her back, throwing her head back in ecstasy as he plunged into her again and again. He leant down and gently sucked the sensitive spot on her neck as she viciously attacked his back. He cried loudly as her nails assault his lower back. His mouth left her neck and met hers, feverishly kissing her. His tongue thrust into hers as he pounded into her aching center.

"More..." she managed to moan before his mouth descended on hers again. It took a few more minutes before arched her back and screamed his name as his released himself deep inside her. He collapsed on top of her breathing heavily.

Minutes passed but no one said anything. They both knew that the moment the silence broke so would the spell and reality would set in. So they lay still intimately connected, spent and exhausted, in the carpeted floor of the Waldorf penthouse. Their clothes were haphazardly lying all around them. Blair watched the Eleanor Waldorf original she wore at her birthday party on the piano top as though it was the most fascinating thing in the world. She didn't want to think or even move. She didn't want to realize what a grave mistake she had made by letting Chuck Bass re-enter her life, both literally and figuratively. This was purely physical, she told herself. A consequence of hating him too much, so much that she wanted to kill by making him orgasm too hard…

He moved slightly and licked her nipple. Her center twitched and she wondered how many rounds was it humanly possible to do. It was then she heard footsteps. She looked down in panic at Chuck, who reluctantly slid out and sat up.

"Dorota…" her mother called from upstairs.

Blair felt like she was having a heartattack. Her mouth went dry and she squeaked out "Hide quickly..."

For a moment she thought he would sit there and enjoy her embarrassment but instead he grabbed their clothes and quickly stood up. Grabbing her hand he led her to the nearest broom closet and shut the door. They heard the footsteps come nearer.

"Dorota…"

Another heavier pair of footsteps shuffled around before Dorota spoke up "Miss Eleanor is everything alright?"

"I-uh- I heard some voices" Eleanor said slowly. Blair's mouth fell open as she hid her face in her hands. What did her mother hear? Loud moans or her daughter screaming the name of Bass-tard? The same Bass-tard smirked.

"It's late, Miss Eleanor. No one here. Perhaps you have dream..."

Eleanor provided a cutting retort before walking up. They waited before they heard Dorati waddling back to her chamber.

"That was close..."Blair breathed out as they stepped back in the living room

"It could be closer if I hadn't acted." He said with a raised eyebrow "Something messed up your chemical reaction, Waldorf. You are much slower on reflexes."

Blair scoffed and smiled bitchily "You know the way out, Bass"

He leaned back against the wall in his naked glory and smirked "I was hoping for a reward for saving you actually"

"Well you can forget that, you Bass-hole because I am never sleeping with you…" she said heatedly. He looked pointedly at the piano and she gritted her teeth and added one word "Again. This was one-time thing"

"You mean a five-time thing because on last count I came inside you…"

"Shut up" she said the prudish streak in her shining through suddenly "I never want to speak about what happened here tonight because as far as I am concerned it never happened"

"Like hell it didn't..." he retorted harshly.

Blair sighed exhausted with their activities and the sudden feeling of déjà vu that surrounded her.

"I hate you, Chuck. Nothing is going to change that."

"I hate you too..." he replied conversationally "This has nothing to do with that. This is about sex and we both know we are the best either of us ever had. So why not get the sexual gratification we both deserve after a well-played war?"

Because it was never just sex... for me...

"Because I don't want to get STDs. Heaven forbid I catch a French disease or two. Did you ever have the French prostitute tested?" she asked slowly. He looked disgruntled. She picked up on that.

"Oh poor Chucky-Missing Eva his savior... Why don't you go home and lick your wounds?"She lashed out quietly.

"I would rather have you lick them" he retorted easily, his smirk back in place.

Rather than dignify the stupid comment with an answer, she turned around and started climbing the stair with as much dignity as she could muster in her half-clothed state.

"I would send a blood report tomorrow and then we will proceed on the licking of wounds idea." She heard him say.

She closed the door to her bedroom and sighed loudly. She was in trouble. Once again she was in trouble. There was a hungry Bass on the loose and she had caught his eye. Worse she was starving herself.