There's something kind of hot about pairing two characters who hate each other... this will be a multpart, telling the story of a week of sexual satisfaction between two people who really should not be together.

Day one, Abby's first sexual encounter with Burton

Abby supposed it was inevitable really. When you hate someone with as much passion as she did Burton, sooner or later something was going to explode; she'd just assumed it would be in the form of anger, shouting, arguing and maybe even a fight.

He'd called her into his office to go over her report on the menagerie. She despised having to justify everything to him after he had almost had all the creatures put to sleep and had tried to suggest that she report to Lester instead, but her work came under "Science and research" and that was Burton's remit, not Lester's.

"Everything seems to be in order," Burton said, his lips curled into his usual fake smile. Abby held out her hand for him to hand her back the document, but the papers remained flat on his desk and Burton looked up. "You're doing a wonderful job with an unusual set of circumstances, and I admire that."

"Thank you," Abby muttered. She wanted to add "It's no thanks to you," but bit her lip. Getting into all that again just wasn't worth it. "Can I go now?"

"I haven't finished with you yet." Burton's face changed, sending a shiver down Abby's spine but she wasn't sure why. "Good work should always be rewarded, Abby." He stood up, removed his tie and unfastened the first couple of buttons on his shirt. He slowly walked around the desk to her side, then indicated for her to stand up as well. She looked at him with a puzzled expression on her face, then before she realised what was happening he was holding her wrists tightly and his mouth was on hers kissing her roughly.

Abby pulled away and tried to free herself from his grasp. "What the hell do you think you're doing?" she spat.

"I would have thought that was obvious, or has being with that runt Connor made you forget what it's like with a real man?"

Abby snapped. She slapped him hard across his left cheek, leaving a very satisfying red mark. He held his hand on it for a moment, feeling the burn, and then his eyes glinted. Edging even closer to her, he cupped her face in both his hands and pulled her into another hard kiss. She stumbled backwards against the desk and gripped the edge with both her hands. It was against everything she had ever felt, and she could quite easily have fought him off; all it would take was a swift knee to his groin area and he would be writhing in agony, but she couldn't do it. Her body was tingling and as his tongue pushed her lips apart and thrust into her mouth she felt a flood of moisture between her legs. Philip Burton was turning her on, and she didn't want to push him away.

She heard herself whimper then she began to return his kiss, tangling her tongue with his and breathing hard. Somewhere inside her head a voice was screaming to stop this, but she ignored it. What was happening was so wrong and the way her body was reacting scared her, but at the same time she was excited and wanted to see just how far this would go.

His hands had moved to her breasts, and he almost growled as he roughly pawed them. Gasping for air, he broke off the kiss and pulled at her shirt, ripping off some of the buttons in his haste to remove it. Then he tugged her bra straps over her shoulders and pulled the bra down to her waist without unfastening it, exposing her pert, naked breasts to him for the first time. Abby saw him lick his lips and a flash of lust in his darkened eyes just before his mouth clamped onto her left nipple. He bit down on it hard, drawing out a pained cry from Abby, then he sucked it hungrily.

Abby felt her jeans loosen; his long, nimble fingers had undone the button at her waistband and he was now sliding his hand inside her knickers. Without thinking, she parted her legs for him to allow him easier access, and let out a gasp as his fingers slid inside her sopping wet cunt. "See, you want this as much as I do!" he growled.

"Yess!" Abby gasped, grinding herself on his fingers and wanting them deeper inside her. He thrust them in and out hard and fast whilst he bit down on her hard nipples. It was too much, Abby felt her hips jerk and her internal muscles quiver around his fingers and she let out a loud moan.

Satisfied, Burton withdrew his fingers and pulled his shirt off. He stood between her legs and pressed her harder against the edge of the desk before pulling at her jeans and removing them and her knickers completely. Licking his lips, he gazed down at her – the hunger and lust in his eyes obvious. He took her hands and guided them to the zipper on his trousers. "If you want it, take it," he rasped, breathing hard.

Abby slid his trousers down to his knees, followed by his underwear, gasping at the sight of his huge erection as it was freed from the confines of his clothing. He was not only long but thick as well, and the tip was glistening with pre-cum. She wrapped her fingers around the hard shaft and began to move up and down. He groaned, and placed his own hand over hers to encourage her movement at the pace he wanted. She smeared the pre-cum over her palm to give her some lubrication and pumped him hard. After a few minutes, he pulled her hand away and edged even closer to her, the tip of his cock pressed against the wet entrance to her pussy.

"Fuck me, please!" she begged. Her knees were trembling and her entire body felt like it was on fire. She wanted his cock inside her now. His rough hands forced her thighs wider apart and then he surged into her with such a force she felt the desk move behind her. She screamed out; he was considerably bigger than she was used to and she'd never had to open so wide to accommodate a cock before. Burton laughed and pushed in harder, determined to bury himself inside completely. When he could make no further progress, he adjusted his position and pulled her legs around his waist.

"Does that feel good, Abby?" he sneered. "This is what sex with a real man feels like!"

Abby could only whimper. Her muscles were clamping around his shaft, and the tip of his cock was pressed against her womb. It felt so good, and this was only the beginning. He began to move inside her, slowly at first to give both of them a moment to adjust to how each other's body felt and then he slammed into her hard.

Abby screamed again, and Burton laughed. "Do you like me fucking you like this, Abby?"

"Yess!" Abby panted. He slammed in again, and then again and again. Each thrust felt harder and deeper than the previous one, and Abby felt her body stretching and burning in a mix of pain and pleasure. Her hips began to buck wildly, and an intense wave engulfed her. She sobbed as her orgasm took hold, reducing her to a quivering, limp mass completely at the mercy of Burton. He pounded into her relentlessly, enjoying her cries and whimpers for a few moments then withdrawing.

Both were panting hard but whilst Abby had had two orgasms, Burton was still to be satisfied. "Turn around," he commanded, and Abby obliged. She bent over the desk, and with a swift movement, Burton was inside her aching pussy again and fucking her from behind. Abby had thought that she had nothing left to give, but she could feel yet another orgasm building and this one was going to be huge. If she had known Burton could make her feel like this, she'd have allowed him to fuck her long before now.

He was pounding into her with long, hard and steady strokes; his own groans getting increasingly loud. He was not far from release himself and he was determined to bring Abby to orgasm with him. He moved his hand from her hip around to her clitoris and he pinched it hard. Abby gasped out, and pressed her hand over his. She wanted this torture, and she guided him back to the sensitive bundle of nerves. "Is this what you want?" he growled. Abby nodded, and he pinched and rubbed her hard.

Finally, his hips jerked and he knew he was about to explode. "I want to hear you scream my name when you cum!" he gasped out. Abby pushed back onto his cock and she felt her womb clench. This was it.

"Philip!" she screamed. Every nerve in her body trembled, her legs buckled beneath her and wave after wave of intense fire swept through her as Burton thrust into her erratically.

"Abby!" he yelled, his cock exploding and filling her with his hot semen. Abby felt the warmth flood her, and it set off another orgasm.

"Fuck me, Philip!" Abby sobbed. She didn't want this to end.

Burton continued thrusting into her, pumping more and more of his juices into her. He didn't think he would ever stop cumming, and neither did Abby. He could feel her internal muscles convulsing around his cock and it drove him wild. When he finally had nothing left, he withdrew reluctantly and turned her around to face him and pulled her into a passionate and needy kiss.

Abby could feel his cum dribbling down her legs, but she didn't care. She had just had the most amazing fuck and her body was still quivering. She wrestled her tongue against his, gasping for air and wondering if there would be more. She realised that this had been exactly what she had craved – rough, hard sex with none of the complications of 'love'. There would be no danger of it ever straying into the territory of romance with this man.

Silently, they both dressed and Burton handed Abby her report. "You will be back tomorrow," he said. It wasn't a question, it was a command. Abby smiled and nodded. There would be no hesitation or doubt; she would definitely be back for more tomorrow.