a/n Sorry for the huge delay in updating! What can I say, I LOVE this story, but I was wondering whether to carry it on or leave it at the last chapter. You guys persuaded me to carry on! So, I really hope you like this next chapter. Please give me your thoughts on whether you want more! As with all my stories, once I get the inspiration and ideas I write whenever I can!

And this is chapter is a little hawt in places ;) Not sure if it needs a full M rating yet though, as tried tone it down a little!

(Oh and apologies for any typos, I just want to get this chapter out now while I've got the chance! SO didn't have time to proof read!)

IZZIE

Izzie's heart was beating right out of her chest as she felt Alex's lips on hers. The kiss quickly becoming, urgent, deep and intense. Alex was a wonderful kisser, not too pushy, not too fast, just perfect.

She moved closer to him, he smelt incredible, as she inhaled his manly aftershave and pushed her breasts in to him, and without breaking the kiss in one graceful movement she repositioned herself to straddle his lap. He responded eagerly sliding his hands up and down her hips, resting them at the top of her jeans and tucking his thumbs in to the top of her panties, before gently running them inside her top and underneath her bra strap, stroking her smooth skin as every nerve in her body tingled with anticipation as his touch rocketed through her and she felt a hard bulge forming in his jeans.

Eventually the kiss broke apart and somehow they managed to find their way clumsily up the stairs and in to her bedroom, losing various items of clothing on the way.

Once inside her bedroom, Alex pushed Izzie back on to the crisp white sheets of her big luxurious bed. His lips finding hers again as her long blond hair spread out across the pillow. Her cheeks were flushed with arousal as she became more and more desperate for him. He moved his lips down to nibble at the sensitive skin around her neck, his breath hot against her ear as he teased her.

Izzie wrapped a leg around his waist as he she felt his mouth move down to her left breast. His fingertips gliding cross her skin as Izzie trembled with desire, they had been building up to this moment for weeks. Now they were finally releasing all the stored up sexual tension.

...

"Wow," Izzie breathed, shaken, as they lay holding each other absorbing the aftershocks in the dark afterwards, both smiling, dazed and high at what had just happened.

Alex turned his head and kissed her softly as he cupped her face. Before brushing a loose strand of her hair away from her eye to gaze at her.

The way he was looking at her made Izzie's chest hurt as it fluttered uncontrollably. He looked stunned, his eyes warm and tender. So different to the arrogant badass he had first appeared when they had met for the first time at the hospital when Sarah had been so sick. And Izzie loved that there was another side to Dr Karev that was just for her.

Izzie looked back at him a little giddily through her eyelashes, giving him a shy smile as she felt his finger tips lightly trace a pattern on her hip. His eyes were full of satisfaction and slight amazement still as they fixed on her face.

Izzie couldn't remember the last time she had felt so happy. When she had been with other men in the past, Izzie had always felt that there had been something missing, but she could never quite work out exactly what that was, but now after being with Alex, she realized exactly what it was that had been missing and she couldn't stop smiling back at him.

She had fantasized about him for weeks. The fact that he had been her daughter's doctor had just fascinated and turned her on even more. And the real thing had actually been incredible, better even than the fantasies. Alex was skilled just like she'd thought he would be, but he was also a sensitive and generous lover. He had been passionate, tender, gentle and intense all at the same time. Together they had just clicked and it had been one of the most intense, mind blowing sexual experiences of her life Izzie thought contently as she felt herself drift off to sleep in his arms.

Izzie woke the next morning to feel Alex's hand gliding up her inner thigh again. She prized open her eyes to see his sexy soft brown eyes were gazing at her as he smiled gently. She smiled back as she reached down to return the favour.

"Morning," she muttered as she heard him moan at her touch, just as she heard a little voice outside the door say, "Mom, Mom." It was Sarah!

Izzie froze and tensed a little. She had thought it was a little too early for Sarah to be up, and they'd been quiet, so surely they hadn't woken her up. She smiled a little apologetically at Alex as she whispered, "I'll be right back." Pulling back the duvet to quickly slide out of bed and throw on a pair of skimpy shorts and top.

"Okay," Alex replied as Izzie felt his eyes watching her every move as she tossed her hair back and over her shoulders as she called out, "Coming Princess."

"You okay? You're up early?" Izzie said as she stepped out of her room, careful to shut the door fully behind her, as she looked at her sleepy looking daughter stood outside her bedroom in her pink pyjamas with her hair sticking out in all directions. She wasn't sure why, but Izzie suddenly felt very guilty and almost as though Alex shouldn't be in her bed as she looked at her precious little girl stood in front of her.

"Yeah, I woke up and couldn't get back to sleep," Sarah said as she twirled a strand of her light blond hair around her finger.

"Well, how about I go and make us some pancakes, then I'll get you a blanket and you can lie on the sofa and watch a little TV?" Izzie said smiling as she smoothed down the side of Sarah's hair.

"Okay," Sarah replied shrugging.

…

As she got to work whisking up the pancake batter, Izzie was unable to hide the huge grin from covering her face as she had sweet flashbacks to the night before with Alex. The slight ache between her legs reminding her it was a very long time since she'd had sex that good. Alex was talented and he and his incredible body were all Izzie could think about.

"Mom, Mom….." Sarah said whining a little as Izzie stopped day dreaming, and looked at Sarah where she was sat at the kitchen table skimming through one of the magazines that Addison had brought her that Izzie suspected were probably far too old for her.

"What is it?" Izzie said as she quickly turned around to face her daughter and give her her full attention.

"Are we going to see Dr Karev again soon?" Sarah said eyeing her mother a little suspiciously as Izzie turned back to pour some batter in to the frying pan in front of her. Izzie gulped a little, as she felt her pulse race a little and her cheeks heat up. She knew she should tell Sarah the truth, but part of her felt it was just too soon. Izzie had always had a strict policy not to have random guys stay over when Sarah was around. Partly because she didn't sleep around anyway, but also she didn't think it was a good impression to have men coming and going. But Alex wasn't really a random guy and she hoped he would be staying over more, a lot more, she thought, as she debated whether to just be honest with her daughter.

"Actually, it got pretty late last night, so Alex stayed over," Izzie said casually as she flipped the pancake over in the pan.

"Oh," was all Sarah said bluntly in response and an awkward silence followed. Izzie knew her daughter was more grown up that she gave her credit for and also she wasn't stupid, they'd already had the sex talk, as well as what Izzie knew that Sarah read and saw on TV when she wasn't supposed to. Izzie had always said that when she was older Sarah should never feel pressurised to have sex with a guy if she didn't want to, but she should also be aware that there wasn't any shame in having sex with the right guy when she felt ready. Izzie had wanted to encourage her daughter to be able to speak to her about anything.

"So, is he going to be your new boyfriend then?" Sarah finally said curiously and a little cooly as her eyes met her Mother's straight on.

"Well, maybe," Izzie said slowly, she knew she had to tread carefully. Sarah liked Alex and as much as Izzie wanted him to be around more permanently, she was also realistic and she knew that there was no guarantee things would work out the way she wanted them to and she didn't want Sarah to get hurt in the process, she had to come first.

"So, are you going to marry him?" Sarah said her eyes widening a little.

"I think it's a little too seen for that," Izzie said shaking her head, hoping desperately that Alex wasn't eavesdropping. She didn't want to scare him away already.

"But he is gonna be your boyfriend, right?" Sarah repeated.

"Would you like him to be my boyfriend?" Izzie replied as she stopped what she was doing and looked directly at her daughter, her big expressive brown eyes a perfect replica of her own, as Sarah didn't say anything in response, instead she just shrugged. Which wasn't quite the reaction Izzie had been hoping for. She had thought Sarah really liked Alex and her being with him wouldn't be a problem. Her heart sank a little as her daughter still didn't say anything, if Izzie was going to start a relationship with Alex she would need Sarah to be on board with it and she was hoping her daughter would have responded a little more enthusiastically.

"So, are you going to have sex with him?" Sarah then said a little more cheekily.

"That, is none of your business Missy," Izzie said sternly.

"But, if he's your boyfriend, you're going to have sex with him aren't you?" Sarah said even more mischievously as Izzie set the plate of pancakes down in front of her and pulled out the chair opposite her to sit down.

"Well, yes, I hope so." Izzie said as she picked up her coffee cup to sip it as she looked away, smiling to herself. One or two little white lies wouldn't hut she thought as she realized her daughter wasn't quite as grown up as Izzie thought, if she could think that Alex would have stayed the night in Izzie's bed and they wouldn't have had sex.

"Sarah okay? Is she eating aright? Not too drowsy?" Alex said his eyes full of concern as he sat up in Izzie's bed as she walked in and handed him a coffee.

"She's just fine," Izzie said with a smile as she added playfully, "And you're off duty, you are not here as Sarah's doctor."

"Oh yeah," he replied smirking a little arrogantly as he said, "What am I here for then?"

"Hmmm.." Izzie said as she sat down on the bed next to him and leaned in, lightly brushing her lips with his as she whispered "This." Alex quickly put his coffee mug down as his lips locked with hers again and he pushed his naked chest further in to her as he wrapped his hand around the side of her face, heating up the kiss as his other hand found itself inside her top, before he slowly pulled away from her.

"You don't know what you do to me," he said in a low voice as she just looked at him expectantly. As much as she wanted nothing more than to pick up where they had left off before Sarah had interrupted them, she knew it wouldn't be entirely appropriate now.

Alex leaned down and picked up his phone from where it was poking out of his jeans pocket next to the bed, where he had thrown them down in the heat of the moment the night before, and he sighed and said, "I gotta get out of here, my shift starts in thirty minutes and Robbins is very scary when I am late for rounds."

"That's a shame. You know, you could just tell Dr Robbins I kidnapped you," Izzie replied playfully, her hand on his thigh as she raised her eyebrows and giggled as she watched him quickly jump up and out of her bed, giving Izzie the perfect view of his naked body again, as her eyes slid eagerly over his impressive abs, causing her cheeks to flush a little as a shiver ran up and down her spine as she continued to watch him throw his clothes on quickly.

Once he was fully dressed Izzie suddenly started to feel a little awkward, she wasn't used to being in situations like this, especially when her daughter was in the house too and she wondered just what she should say next, picking up that he also felt a little uncomfortable too.

Sensing he was then working up to saying something Izzie suddenly felt a small pang of nerves. What if he didn't want to see her again? What if he had just wanted sex? And she just had too much baggage for him to consider anything else. Hadn't Lexie said how he wasn't the kind of guy that did committed relationships. Had Izzie been really stupid, thinking that he would change that for her, not because she was a famous supermodel, but because she had thought they had connected over Sarah's illness and his treatment of her.

"Err….So, umm… When can I see you again?" Alex suddenly blurted out a little clumsily.

Izzie was unable to hide the small smile that crept on to her lips, as she suddenly realized that was actually what he had wanted to say, nothing else. She should have known it hadn't just been a one night thing for him either as she looked at his anxious eyes staring back at her waiting for her response.

"How about tonight? I mean I don't have a babysitter, but you could come over again, I could cook for you? I make mean enchiladas," Izzie quickly said before she had a chance to think about it and she suddenly wondered if she'd been a little too forward. Maybe she should have played it a little cooler, a little more hard to get. But she really liked Alex and she didn't want to play games. Plus she was horny as hell for him again and the sooner the better.

"Tonight, sounds great, I'll come over around seven?" He replied to Izzie's instant relief

"Great," Izzie said, flirting with her eyes back at him as she could tell by the look on his face that he was mirroring the erotic thoughts running through her mind too.

...

"See you later then," Alex said as he leaned in and kissed her tenderly on the cheek at her front door before he left and she turned to go back inside and see Sarah.

...

"Alex said to say goodbye," Izzie said to Sarah as she sat down on the sofa next to her.

"Okay," Sarah said quietly, without taking her eyes away from the trashy Disney movie she was engrossed in.

"Okay then," Izzie mouthed to herself, just as her phone rang. It was Addison calling from New York.

"Addie?" Izzie said as she walked out of the front room, closing the door behind her and sitting down on her bottom stair to speak to her best friend.

"How's my girl?" Addison said.

"She's doing really well," Izzie replied.

"Great, now give me all the details, I want to hear all about your date that wasn't actually a date," Addison said.

Izzie beamed down the phone as she said, "It was, well, perfect. We had such fun and then Alex stayed over and it was…well, lets just say you know when you haven't had sex for a while and then you do and it awakens something, well Alex has certainly awoken something," Izzie gushed.

"Hmmm..looks like my best friend duties are going to be needed soon, better start making the plans for your bridal shower now!" Addison teased.

Izzie suddenly stopped laughing and lowered her voice as she said. "Oh, I don't know about that. Sarah's been acting a little weird since I told her Alex stayed over last night. I'm really not sure what's going on. She was all up for me going on a date with him when she was in the hospital, but now…."

"Ah, I think I might know what that is about," Addison quickly said. "Just before you guys left the hospital. Sarah came to find me to say goodbye remember? when you were with Alex. Well, she said she was worried that Alex was going to become part of your family and then…."

"I'd make us leave him suddenly, like with Denny." Izzie jumped in and said, as it dawned on her the reason why Sarah had been a little moody earlier. She should have known. Sarah had been more heartbroken over Izzie's split with Denny than Izzie had had been. Denny had been like a father to Sarah and now she barely even saw him, it had hit her hard and Izzie couldn't blame her for worrying the same thing would happen with the next guy she got attached to.

"Iz, she's just a kid. We both know the reasons you left Denny, but to her all she saw was that you were all living together happily as a family, everything was great one minute and then the next, suddenly over night, you ruined it all by making you both up and leave." Addison said firmly but kindly.

"But this is different, " Izzie exclaimed as she thought how she hadn't felt one tenth for Denny what she was feeling for Alex right now.

"I know that, Iz. But Sarah's going to need a little bit more convincing," Addison replied gently.

Izzie sighed as she said, "I'll talk to her."

"Listen, Iz, I've got to go, I've got surgeries scheduled. But let me know how it goes with Sarah and if there is anything I can do to help. Oh and Iz, I'm going to need a small favour in return. Mark is flying back to Seattle today, Derek's persuaded him to work on a couple of temporary cases with him. So, I need you to keep an eye on him, I have a feeling he's up to something." Addison said quickly.

"Sure," Izzie said groaning a little to herself, she had a fair idea what it was that Mark was up to. Alex had said Mark had been flirting with Lexie non stop when they had all performed a surgery together the other week and Lexie was clearly nursing a crush on him too. Izzie felt annoyed. She liked Lexie, but Addison was her girl.

As Izzie ended the call, she stayed where she was sat on the bottom stair and she rested her chin in her hand. She knew she should be cautious and take things slowly with Alex, for Sarah's sake if nothing else. But all she could feel was warm and happy inside as she suddenly noticed Alex had left his coat hanging up at the bottom of the stairs, and she picked it up putting her face in to it to breath in his scent, and a wide grin appeared on her face again as she realized she had no intention of taking things slow, everything about Dr Karev turned her on. She was smitten!

a/n - Please keep reviewing! :