So this is a total A/U. This first chapter starts out four years ago, where Mark and Lexie have a one night stand while she is a med student at Harvard. Four and half years later they meet again, during the merger. How will they react when they see each other? How will Mark react to the secret Lexie has been carrying with her for the past 4 years?

Complications Part One

Boston, four and a half years ago…

She should have felt guilty when she left one of her best friend's bachelorette party. She should have felt even guiltier for leaving with the stranger from the bar. But the way she fit into his arms, and what she felt when he would kiss her, guilt was thrown out the window.

Lexie Grey usually did not do things like this. Correction, Lexie had never done anything like this. She had never went to a stranger's hotel room to have sex with him only hours after meeting him. She was a relationship kind of girl. She was not one to not even know a guys last name before sleeping with a guy.

Yet they were naked, kissing, and ready to do just that.

His name was Mark (Something). He was older, that part didn't bother her. If anything it made him even sexier. His hair was beginning to gray, and his facial hair tickled her chest as he trailed kisses from her collar bone down to her stomach.

He suddenly stopped, his elbows propped himself up on either side of her. "You sure you want to do this?" He asked.

Lexie grabbed onto his lower back and pulled him inside her and smirked, "Does that answer your question?"


The next morning Lexie has woken up before Mark and quickly took that opportunity to get dressed and sneak out of the room.

She had never done anything like this before, so she had no idea what they were supposed to after. So she just left.

He was from New Your City or something; she would never see him again anyway.


She jumped at the sound of her friend's voice as she snuck into her apartment, "You are wearing the same clothes you wore last night."

"Damn it Morgan you scared the shit out of me."

"Coffee?" Morgan asked as she poured herself a cup.

"Sure." Lexie sat down on the couch.

"Please don't make me ask." Morgan told her as she handed Lexie her coffee. "What the hell happened last night?"

Lexie shrugged, "I slept with this guy…"

"Well, that is a given." Morgan took a drink of her coffee. "He was cute. Was he good?"

"Yeah he was. I mean I thought I had good sex before, but he was just…Amazing…"

"So when are you going to see him again?"

"I'm not…" Lexie told her, "He's from New York…"

Morgan faked a gasp, "You had a one night stand? That is so unlike you." She laughed, "It's about time. You were making me feel like such a slut."

Lexie rolled her eyes, "You are not a slut…" She set her mug down on the coffee table, "So how mad was Beth that I left her party?"

Morgan laughed, "I think she was too drunk to realize you ever left."

"Well I am going to take a shower." Lexie said, downing the rest of her coffee.


Three days later...

Mark Sloan was back in New York. He strolled into Derek's office. "You're back." Derek greeted his friend. "How was Boston?"

"Great. Medical conference went great." Mark sat down on the chair in front of Derek's desk.

"You look guilty. Why do you look like you feel guilty?" Derek asked.

"I slept with someone while I was there…"

Derek laughed, "Why doesn't that surprise me? Why would you feel guilty about that? Why start now?"

"She was kind of young…"

Derek frowned. "Oh God. Mark. Please tell me she was over 18. Please…"

Mark rolled his eyes. "Of course she was over 18. I'm not that kind of pervert. I met her at a bar. She looked kind of new to the bar scene , so I think she just turned 21."

Derek leaned back on his chair, "So why do you feel guilty?"

"She was gone before I woke up." Mark told him, "And I don't know…I just feel guilty. I don't think she was the one night stand kind of girl."

Derek smirked, "Maybe you are just growing up."


Eight weeks later…

"Lexie?" Morgan called out as she walked into the apartment. "You in here?"

"In here…" Lexie's voice was barely above a whisper.

Morgan slowly opened the door to the bathroom, "Lex…What's wrong?" She sat next her friend, who was sitting on the bathroom through, crying. "What happened?"

With a shaky hand, Lexie held up the plastic stick, "I'm pregnant."

A small gasp escaped from Morgan's lips, "Are you sure? I mean, it could be false negative. Maybe you should take another one?"

"This is my sixth test." Lexie whispered. "All of them are positive."

"Oh My God…" Morgan felt her jaw drop, "Whose is it…"

She took a deep breath, "Remember that guy I had a one night stand with? Mark?" Morgan nodded, "The baby is his…It has to be his…" She dissolved back into tears. "I don't even know his last name."


Seven months later…

"Have you picked a name yet?"

"I think so Mom…" Lexie told Susan, without looking up at her; she couldn't bring herself to stop looking at the sleeping new born in her arms. "Maya. Maya Marie Grey." It had only been a couple of hours since she gave birth.

"That's a beautiful name sweetheart."

"She is beautiful, isn't she?" Lexie asked. "I cannot stop looking at her." She wiped away a few tears. "I love her so much already."

"Welcome to motherhood Lexie."

"Are you disappointed that it happened this way?"

"I can't lie to sweetie, a first I was." Susan smiled. "But now that I see her…My little Maya…My first granddaughter…It just makes me realize everything happens for a reason."

"Do you want to hold her?"

Susan nodded, "Of course."


Present Time…

"You ready?" Lexie asked.

He sighed. "Ready as I will ever be."

She smiled. "It will be okay Jackson. I've met some of the residents here once or twice. They are…." She trailed off nice was not the right word for it, "Pleasant."

"Which one is your sister again?" Jackson Avery asked.

"Meredith." Lexie answered as they reached the front doors of the hospital. She frowned as she looked at the new 'Seattle Grace Mercy West Hospital' sign, "That sign is just weird." She glanced down at her orange scrubs, "It will be nice to get rid of these prison jump suits."

"Yeah I don't know who decided orange scrubs was a good idea. The blue will be better. So which ones have you met?"

"Alex Karev. He is kind of an ass. But he is one hell of surgeon. Cristina Yang, she can be cold, but she is determined. She's cardio. And Derek Shepherd, head of Nero. He is Meredith's post it husband."

"Oh yeah. I remember you telling me about that. So the post it marriage is serious?"

She shrugged, "Apparently. Anyway, Derek is really nice. He is great with Maya."

"Is Maya at your dad's today?"

"Yup. I figured it would be easier that way. I have a feeling it is going to be a stressful day."

"You ready to go in?" Jackson asked.

Lexie nodded slowly, "Yeah." She smiled, "Let's go kick ass." Brushing her hair behind her ear she and Jackson stepped inside Seattle Grace Mercy West Hospital for the first time.

Lexie had yet to know that this hospital would change her and her daughter's life forever…

TBC…?

Some things might be a little confusing at first, but there will be a series of flashbacks to fill in the gaps.