There was a knock at the door and Mark turned off the TV with a sigh. He hadn't been watching in the first place, he didn't even know the score, but the intrusion was not welcomed anyway. His mind was preoccupied by the beautiful intern with whiskey coloured eyes and the amount of cold showers that the thought of her had forced him to take over the last couple of weeks. It couldn't be healthy anymore.

Mark opened the door. He had expected to see one of the hotel employees on the other side or perhaps even Derek. Anyone but her really.

"You made her speak." was the first thing she said the second he opened the door. "Mrs Patterson, she said hi. You, you made her speak."

Mark was so stunned to see her standing there that he didn't really hear anything she said. Her cheeks were flushed and she was slightly out of breath, but all Mark could think about was that she was standing outside his door. It was first when she started to remove her clothes that he reacted.

"What are you doing?" she could not be serious, he thought. "Stop!"

"Teach me." she said and he quickly closed the door when he realised that she wasn't going to stop.

"We can´t do this. You're-you´re Little Grey and I-I promised and I am your teacher." he could hear himself how unconvincing he sounded. This, he wanted this. How are you supposed to say no to something you want when it is right in front of you and within your grasp?

"So teach me." was her simple response as she took of her purple turtleneck.

"Oh Lexie." he sighed. He tried to look away but she looked so beautiful standing there with her wide eyes looking up at him and her chocolate hair falling down her shoulders.

"Come on, am I really that bad?" the insecurity in her voice was like a stab to Mark's heart and it was what made him give in to what they both so obviously wanted.

"No. I am."

Without wasting another second Mark closed the final distance between him and Lexie and did something he had longed to do since that time he heard her recite the periodic table at Joe's after work. She tasted like nothing Mark had ever tasted before and he loved how she was just as eager to give as he was. Their lips moved in sync and their hands roamed up and down the other's body. Mark's hands found their way into Lexie's hair and her hands gripped onto his shoulders tightly. And then clothes started to fly around the room. His shirt, her pants, his pants, her bra and so on.

Mark knew he should stop it. If Derek were ever to find out, it would ruin everything that they had managed to build up after Mark's stunt with Addison. But every bone inside of his body screamed at him that this was right. Because it was. It felt right to have Lexie in his arms and the open look in her eyes told him that she felt it as well. And besides, Mark was a selfish man and there was no way he was going to give up something that felt this good. He pushed Derek to the back of his mind and pressed a long kiss to Lexie's lips to try and convey all the things he felt but couldn't voice.

The next morning Mark felt slightly disorientated when he woke up. Normally he woke up sprawled out on his stomach as close to the window he could get without falling out of bed and he always hogged all of the sheets. But this morning someone else had hogged the sheets and had it not been for the heat pressed into his side, his teeth would clatter.

Mark wiped the sleep out of his eyes with his free hand that was not wrapped around the body next to him.

The room was still quite dark and outside the window the sun had just started to rise so it was still early.

When he looked down he was faced with a mop of chocolate brown hair that could belong only to the intelligent intern who he had been warned off from. She was still asleep with her face pressed into his neck. Every time she let out a breath it hit his neck and sent shivers through his body. It felt nice, really nice, and for once he did not feel claustrophobic when he woke up next to someone. Had it been anybody else lying half on top of him, Mark would have probably already been out of the bed, but he liked the feeling of having her in his arms, so much in fact that he could actually overlook the hogging of the sheets.

Five more minutes, Mark thought and stretched out before he hugged Lexie close again. He had to get up and get ready for work, so did Lexie, but he couldn't find it in him to get up quite yet.

Lexie stirred in his arms because of his movements and groaned softly, clearly not happy about having to get up right now either.

"Good morning!" Mark said quietly to not disturb the peace that lay in the room.

"Morning!"

"We have to get up." he said after a few seconds.

"I know. But I can't move." Lexie groaned. "My entire body aches." Mark couldn't help but laugh at how cute she sounded.

"You were pretty amazing last night, Little Grey!" he said softly and let his hand stroke gently over her cheek. Lexie closed her eyes again at his touch and when she opened them again they burned with something that made Mark's body come alive.

"There's no complaints here either." she grinned cheekily and leaned in slowly to press a kiss to his lips.

Mark allowed himself to get lost in the kiss and when Lexie tentatively asked for entrance with her tongue, he freely gave it to her. He reluctantly broke it off after a few minutes though. They needed to get up now or they would never leave the room today if Mark had his way.

"How about a shower before we have to leave for work?"

Mark climbed out of bed first, before he helped Lexie out as well and led her over to the dark bathroom. He turned on the lights and walked first into the shower to turn on the water so it could heat up to the right temperature. When it was to his satisfaction he pulled her in behind the glass wall and pushed her under the stream.

They did not say a word the entire time as the warm water ran down their bodies. Her whiskey coloured eyes never wavered from his and Mark liked how they did not need to use words to communicate at the moment. It would break the nice little bubble they were in at the moment and force them back to reality way too soon.

It was first when he could see Lexie's tiny fingers start to prune that Mark turned off the water and helped her out of the shower. He took one of the fluffy white towels from the rack and wrapped it around Lexie before he wrapped one around his waist. For which he was rewarded with a sweet and quick kiss.

While Lexie got dressed and tried to untangle her hair to make it look somewhat presentable, Mark called room service and ordered them coffee and something light to fill their stomachs with. It arrived ten minutes later and less than five minutes after that they were both out the door, dressed and ready for another long day at the hospital. To Mark the day could not have started in a better day.

Mark drove them to the hospital in his car, but he let Lexie walk in first before he followed five minutes later. It wouldn't help either of them if they became the newest gossip of Seattle Grace. Lexie certainly did not deserve to have this held over her head and he certainly did not need the entire hospital knowing of his latest conquest, not when he just started to redeem his reputation among the nurses.

Mark wasn't a morning person and was always very grouchy to everyone before he had downed his first espresso, but today his steps were light and he actually smiled as he entered the hospital.

The first person Mark ran into and who noticed his strange behaviour was Derek. He knew to stay clear of Mark in the morning until Mark approached him, but he couldn't stop his curiosity at his friend's good mood and walked up to Mark by the elevators.

"Good night last night?"

Mark turned to look at him with a shit eating grin. "The best."

"Who is she?" Derek smiled. "Anyone I know?" at that Mark looked away but the grin was still present on his face. "As long as it is not Lexie then I am happy."

It was quick and Derek almost missed it, but when he mentioned Lexie Mark's smile faltered and Derek could not help but wonder why.

Luckily for Mark the elevator arrived and kept Derek from asking anymore questions. Of course Derek would manage to destroy the one good thing Mark had without even being aware of it. Mark's high transformed into guilt as the elevator doors closed behind them and other hospital personnel. The one thing Derek had asked him not to do, he had gone and done anyway.

Mark tried to justify it by telling himself that it was Lexie who went after him and so on. But in the end it all came down to the fact that it was Mark's own responsibility and that he should have tried harder to get her to leave, he had just not wanted her to.

Mark knew what he had to do, it just sucked to have to do it. What he and Lexie had shared last night had been amazing and something Mark had never experienced before, not even with Addison who he had supposedly been in love with. What they shared had made him believe that maybe he wasn't such a bad person after all, that maybe this could be something more. But Mark knew deep inside that he would end up hurting her one day. It was better to end it now before it was too late.