Okay, here is the chapter of my T-story with the M-part included. It's the exact same chapter except of the part between the M's in bold. So you can scroll down until you get there if you don't want to read the rest of the chapter again. Enjoy!

Chapter 4: The on-call room

"What are you looking at?" Meredith asked Lexie who leaned against the corner staring intently in the direction of the nurse station. But as if she didn't hear her at all Lexie didn't break eye contact with whomever she was holding it. Meredith couldn't see the person Lexie had the staring contest with but was really curious when a smirk suddenly appeared on Lexie's face. "Woww. Do you want to set something on fire? Because if you do I bet you are getting really close with that look."

Meredith stood now directly beside Lexie and followed her gaze. She wasn't really surprised when she saw who the recipient of Lexie's stare was.

"Okay, I admit it. He is definitely worth to be set on fire. Especially the clothes. I wonder how he looks like naked. Not that I ever had the chance to experience it myself." Meredith stated provocatively.

"What?" Lexie asked confused her gaze still glued to Mark.

"I thought that would get your attention." Breaking the eye contact with him Lexie turned around to her sister furrowing her brows in anger.

"What are you talking about? You will never see him naked!"

"Hello! Earth to Lexie. In which universe are you currently? It's me. Meredith. Your sister. Happily married to Derek. Jeez. I didn't know that you are so touchy."

"Sorry." Lexie apologized quickly before she saw the smile that broke out on Meredith's face. "Ahhh, you are messing with me."

"Sure. Because you are so easy and it's just too much fun."

"Only when it comes to him." Lexie's eyes returned to Mark who was still standing at the nurse station now deeply in conversation with Derek.

"Right. So how is it going anyway?" Meredith asked curiously.

"Hmmm, let me think. We had a wild make out session on his kitchen counter before he backed away again." Lexie stated nonchalantly as if this happened every day.

"Seriously?"

"Yes. Could you imagine that? McSteamy got all reasonable on me." Lexie threw up her arms in frustration.

"Well, not really a surprise." Meredith replied calmly.

"What? You are supposed to back me up here. You know, because of the whole being my sister thing."

"Of course I'm on your side. But I think if he wouldn't care about you he would have slept with you. No doubt."

"Yeah, maybe you are right." Lexie replied slightly defeated.

"And what does that tell you?" Meredith asked her with a voice that sounded a lot like Lexie's teacher from elementary school.

"That he cares about me?"

"Okay that too. Mark loves you, Lexie. He loved you even through the whole Jackson debacle. So can you two please get over the whole awkward in-between stage and settle down already?"

"You think we would make it."

"Definitely." Meredith let her gaze return to the nurse station. "Oh and he is still watching you."

"Really?" Lexie asked with a satisfactory smile on her face.

"Yes. Come on, Lexie. Play a little with him. You know, a meaningful look over your shoulder and then drop an unmistakable hint that he should follow you to an on call room. I'm married. I need some steam here." Meredith said in a feigned pleading voice.

"Okay then. Steam it is." Lexie straightened her lab coat and with a last look towards Meredith who gave her a thumbs up she took in a deep breath and walked over to Mark and Derek.

~M&L~

When Derek walked down the stairs to the nurse station he spotted Mark standing there with a patient chart forgotten in his hand staring in the other direction. Following his gaze he saw Meredith and Lexie a few feet away chatting vividly. He joined his friend at the nurse station and dropped his own chart on the desk with a loud thud in the attempt to startle him but it seemed that Mark didn't realize that he was standing right next to him until he suddenly spoke.

"What do you think they are talking about?" Mark asked Derek without looking at him.

"I know you think women are some mysterious beings and most of the time we are trying to figure out what they are thinking. But in this case I'm almost one hundred percent certain they are talking about you." Derek stated after watching his wife and her sister intently for several seconds.

"Me?" Mark turned his head around to Derek in surprise.

"Yes. And judging by the looks they are throwing in our direction you're screwed."

"Why?" Mark was totally confused right now.

"If I've ever seen a 'I imagine you naked` look then this look definitely falls under this category. I'm sure they are cooking up some plan to kill you." Derek enjoyed watching the confusion on his best friend's face for a few moments longer before he clarified his statement. "Figuratively speaking."

Still Mark didn't seem to understand what he was trying to tell him and Derek took the more direct approach.

"Do you have some condoms handy?" Derek was able to ask Mark with a still straight face even though it took him some effort to suppress his laughter.

"What?" Derek had almost pity with Mark when he saw how hard Mark was trying to figure out what he was talking about. But he had definitely too much fun messing with him.

"Never mind. I think you don't need one with Lexie anyway?"

"Why do you think I need a condom?" Having mercy with him after all Derek answered his question in an unmistakable way.

"Mark, I'll bet twenty bucks that you will follow her within the next ten minutes and you two won't end up only talking to each other."

"Do you think?" Mark queried with a little bit of understanding now in his voice.

"Absolutely." Derek said.

"Can I prevent it?" Mark asked curiously.

"No chance."

"I guess I have to live with it then." Mark mocked defeat.

"Don't hurt yourself." Derek replied with a big smile while he clapped him on the shoulder. Looking at Mark's face he saw that he grinned from ear to ear and Derek shook his head in disbelief.

"You are already imagining it."

"Yeah!" Mark answered dreamily.

"Is it good?" Derek couldn't hold back the question.

"Definitely!" Mark assured him. "I'm feeling already hot only thinking about it."

"Here it comes." Derek whispered to Mark when he saw Lexie coming into their direction.

"Dr. Sloan!" Lexie deliberately ignored Derek but he wasn't the slightest affronted. Her eyes were fixated on Mark.

"Dr. Grey!" Mark replied in a husky voice and Derek looked down quickly to hide the grin that appeared on his face. Lexie walked by them swaying her hips in a provocative manner and only seconds later she turned her head around and looked one more time back to Mark while licking her lips suggestively. Derek chuckled slightly beside Mark when he saw it. No subtlety there. But when he looked at Mark his friend didn't move a muscle except of the one in his face that indicated that he clenched his teeth. Derek really admired Mark for his strength but enough was enough.

"What are you waiting for? Do you need a blinking neon sign? She wants you. You want her. Stop torturing yourself." Derek said exasperatedly.

"Go." Derek pushed him in the direction Lexie just disappeared.

"But ..."

"You can talk afterwards. As long as you two haven't blown off some steam there will be no talking anyway. Stop thinking so hard for a few minutes and have some fun."

~M&L~

Mark rounded the corner just in time to see Lexie slipping into an on call room leaving the door slightly ajar. The moment he stepped through the door Lexie's hand shot forward and grabbed him by the collar of his lab coat pulling him into the room while she closed the door with her other hand slamming him into it.

"Will you make a new habit of this? Slamming me into hard surfaces?" Mark smiled down at her while he fumbled behind him for the lock of the door.

"Shut up." Lexie tightened her fist even further so that his lab coat was pressed uncomfortably into his throat. "Just to be clear on the matter. Now that you are here there is no backing away again. Got that?"

"Loud and clear. Wouldn't dream of it?" Mark had finally found the look and turned it around. They didn't need any interruptions.

"Good."

Lexie released his lab coat from her grip and took two steps back a little embarrassed by her own actions. She really needed to release some pressure. She felt as if she could exploded any second. Taking in some deep breaths she turned around and faced the window trying to calm herself down a little while she decided how she wanted to proceed. She didn't want to jump him. She waited far too long to have him again. She wanted it to be slow. Wanted to enjoy every single second of it when they would finally be connected again. Physically and emotionally.

"Lex? Something wrong?" Mark's voice directly beside her ear startled her but before she could turn around he wrapped his arms around her and buried his face in her hair. "You aren't nervous, aren't you?"

"No. Not nervous. Just a little … I don't know … anxious maybe? "

"Let me help you with that." Mark whispered into her ear brushing her hair behind it before he lowered his head and trailed butterfly kisses along her jaw. Lexie relaxed immediately in his arms and tilted her head to give him better access to her neck. Accepting her offer Mark followed the line of her neck with his lips nibbling carefully at her skin on his way down to her collar bone.

Lexie tightened her grip around his arms that were still resting on her stomach when his scruff scraped over her skin and a sigh escaped her lips. Hardly making any contact Mark kissed his way back to her ear taking her ear lobe into his mouth biting down on it carefully causing Lexie to let out another moan.

"You smell so good and I love to taste you." His hoarse voice floated to her ear. Her knees already went weak under her when he turned her around and cupped her cheek in his hand caressing it with his thumb. Slowly he bent down and stopped only a few inches before her mouth. Mark waited until Lexie opened her eyes again and they stood still for a few seconds feeling each others breath on their lips. Lexie shuddered in his arms and Mark closed the last gap between them capturing her lips with his.

The kiss was a repeat performance of the kiss he had given her in Joe's bar. Slow and sultry without any tongue contact at first and like in Joe's bar Lexie grabbed his upper arms to held herself steady. When he slipped his tongue into her mouth she wrapped her hands around his neck and pulled him further into her while they were still kissing in an agonizingly slow pace.

Without parting their lips they removed their lab coats. Mark began to untie her scrub pants and with a shake of her hips they felt on the ground. Lifting her up Mark carried her towards the bed and lay her carefully down on it. They interrupted their kiss only for the brief moment it took them to pull their shirts over their heads before Mark lowered his body onto hers.

When they had to come up for air Mark's eyes bored into hers and the desire Lexie saw in them took her breath away. She was so in love with him that she didn't know how she could convince herself to leave him and never come back. Tears sprang into her eyes and her feelings got the better of her when she felt his back muscles under her fingers.

"Don't cry, Lexie." Mark brushed the lonely tear Lexie couldn't hold back tentatively away.

"It's just …. I'm just a little overwhelmed right now. Nothing to worry about." Pulling his head down to her she whispered barely audible. "Make love to me."

~M-M-M-M-M-M-M-M-M-M~

Mark only touched her lips briefly before he propped himself up on one elbow and trailed his finger along her neck towards the strap of her bra. Following the outlines of it his palm brushed over one of her nipples and Lexie's breath quickened. Mark's eyes never left her face when he opened the front clasp of her bra and slowly pulled it aside until her breasts were both freed.

"Just beautiful." Mark whispered before he bent down and took one nipple into his mouth while he pinched the other one slightly between his thumb and forefinger. Releasing the nipple he licked over it once before he breathed slowly over the moist flesh. Lexie's nipples tightened even further and she arched her back begging Mark silently to take them into his mouth again. After he gave the other nipple the same attention he looked down into Lexie's face and a smug grin appeared on his face when he saw how hooded her eyes already were.

Lexie closed her eyes briefly before she opened them again. "Don't be so smug. Wait until it's your turn."

"I can't wait." Lexie pushed him back until he lay on his back before she cowered over him. Spreading her hands out over his chest she ran them up and down his torso feeling his muscles clench under her fingers. Sliding down from him she trailed one finger along the waistband of his pants satisfied when she heard his breath quicken exactly like hers did only a few minutes ago. Slowly he pulled at the strings until she could take of his pants. Now only in his black boxer briefs she licked a trail with her tongue from his neck to his briefs giving him a quick peck on his erection before she licked her way back.

"This is torture." Mark murmured under his breath closing his eyes and throwing one arm over them. Lexie chuckled slightly. "And you are enjoying it." Mark groaned.

"Of course. There is nothing better than having a man completely at your mercy."

Since Mark's eyes were still closed he jumped slightly when she felt her hand slip under his boxer briefs. Lexie wrapped her hand around his erection and squeezed carefully before she rubbed up and down his whole length with the exact amount of pressure.

"Lex?"

"Yeah?" Lexie replied without interrupting her task. Mark's hand shot down stopping her movement and pulling her up to him. Flipping her over he pinned her down on the bed beneath his body.

"I want you, Lexie." Mark stated the obvious because Lexie could feel the evidence of his desire pressed firmly into her. Quicker than she would have thought possible he got rid of her panties and his briefs and lowered himself between her legs. As she felt him at her core she shivered slightly and Mark positioned himself at her entrance. But before he entered her he locked her head between his hands and looked directly into her eyes.

"I want you more than you can imagine, Lexie." In the same moment their lips met he pushed into her and Lexie moaned under his lips when his hips moved forward and he buried himself completely into her.

Mark paused for a few seconds before he began to thrust slowly in and out of her. Lexie felt the first tugs of her orgasm when Mark stroked her walls over and over again. He never quickened his pace. His strokes were steady and thorough as if he wanted to show her what she had missed out on over the last months and Lexie lost herself in the rocking of their bodies. With every thrust Mark got closer and only when he felt the first flutters of Lexie's orgasm around him he moved faster and thrusted harder into her until Lexie cried out under him and he spilled his own release into her.

~M-M-M-M-M-M-M-M-M-M~

Entangled in each others embrace they lay exhausted on the bed. The steam was definitely blown off for the moment.

"I missed that." Lexie murmured sleepily.

"What? The sex?" Mark chuckled into her hair.

"Yeah, that too. But I missed all of you. Not only the sex. Talking to you about everything and nothing. Though I have to admit I really missed your body. You did take good care of it while I was gone though." Lexie stroked admiringly over the muscles of his torso.

"Wouldn't want to let it go to waste only because you decided to walk away from it." Mark let his hand trail up and down her spine and silence fell over them for a few minutes before Mark broke it. "Okay, now that we got it out of our system, can we talk about some things?"

"I think we should." Lexie replied quietly.

"At first I have one question. I know I shouldn't ask it but I want to know."

"What is it?"

"Why Jackson and why so fast?" Mark rushed out the question before he could change his mind.

"Not exactly a good "after sex" topic. Talking about the ex." Lexie tried to prolong the inevitable.

"Will you answer it nonetheless?" Hearing the uncertainty in his voice made her heart clench.

"Yes, I will." Lexie paused briefly before she continued. "He was there when you weren't."

"But I ..."

"I know that it was my fault and not yours." Lexie interrupted him. "But I couldn't talk to you because I was so mad at you and then the whole thing with my father and his girlfriend happened and I needed desperately someone to talk to. Meredith didn't understand why I found the whole situation so inappropriate."

"Okay and what happened exactly that day?" Mark furrowed his brows when he thought back to that day. It was the day he sent Jackson to check on Lexie giving him the advice to take some peanut butter cups with him. But Jackson told him that Lexie didn't say anything. He got suspicious that Jackson played them both but waited until Lexie would confirm it.

"I was angry. At everyone. At my father. At his girlfriend. At Meredith and most of all at you. I was going crazy with all the pent up anger and Jackson came along and talked to me. I could tell him how much I missed you and everything else. He let me vent and when he was on the parking lot later I was just so tired. I was hurt and I needed someone or something. So I took him home with me." Lexie's voice was barely audible at the end. She was slightly ashamed to admit to Mark that she took the first one that came along the way into bed with her.

"Bastard! He took totally advantage of the situation. I'm going to kill him." Mark shouted out furiously.

"What?" Lexie asked totally taken aback by the anger she could hear in Mark's voice and looked quizzically up in Mark's face.

"I was the one who wanted to know how you were doing. You wouldn't talk to me so I sent Jackson to see if you would talk to him. I knew that you were angry and that you needed someone to talk to. I couldn't be the one so I thought it would be a great idea to let you talk to someone who is already a friend. Apparently not one of my brightest ideas." Mark stated with a slight shrug of his shoulder.

"That's unbelievable." Mark flinched visibly fairly certain that he was angry with him because he wanted to check up on her. But he was surprised when Lexie stroke out on Jackson and not on him. "He totally talked me out of going to you. Twice. I was talking about soul mates with him and he told me that the whole there is only one true soul mate out there would be totally bullshit. Bastard."

"You think we are soul mates?" Mark couldn't believe what he just heard.

"I don't know how you feel but without you I'm not whole. You are my second half, Mark. The one who makes me complete." Mark couldn't answer her because he had a big lump in his throat. The only thing he could manage to get around without losing it completely were only three words.

"I love you."

"I love you too, Mark."