Note: I forgot to include this in the Summary, but Lauren leaves just before Bo finds out she is Fae. This is ultimately a Doccubus story, so I hope you all hold on for the ride. Anyway, I hope you all enjoy =)

Disclaimer: I don't own Lost Girl.

Chapter 1 - A Promise.

21 Years Ago.

"I'll miss you Lauren," An 8-year-old teary-eyed Bo whispered as she hugged Lauren tightly.

"I'll miss you too Bo-Bo, but I'll be back. I promise."

Lauren replied before she pulled back from the hug. Lauren's tears began too fall freely as her mother began to usher her toward the car. As Lauren reluctantly hopped in the car, Bo followed. Closing the car door, Lauren's mother turned around to give Bo a hug and a kiss on the cheek before hopping in the passenger side. Lauren placed her hand on the car window, her vision blurry as she watched Bo approach the car and place her own small hand against the cool glass. Bo couldn't believe she was losing her best friend today.

"Come now Bo honey, move away from the door, they're going now," Bo's mother said as she came up behind the small child. Bo backed away slowly as Mr. Lewis started the engine and began to pull out of the driveway.

"Goodbye Aoife!" Mrs. Lewis yelled out through the car window.

"Bye Bo-Bo," Lauren yelled from the backseat, "I'll be back soon, I promise!" she called out waving frantically at Bo.

Bo could only wave back sadly as she watched the Lewis' car turn out onto the street and finally disappear.

"They're not coming back are they Mom?" Bo asked staring up at her mother with her tear stained face. Aoife crouched down next to her and framed her daughters face in her hands, wiping away her tears.

"I don't know honey, Lauren's granny is sick. She needs someone to take care of her. I'm pretty sure when her granny gets better, Lauren will come back and visit us. I'm going to miss them too, love."

"But England is so far away…why does England have to be so far away?" Bo asked dejectedly.

"I don't know Bo-Bo, it's just the way things are. Now come on sweetheart, let's go inside, we can bake some cookies."

Bo watched as her Mom made her way back into the house. She turned back towards the street where the Lewis' car had disappeared and wrapped her hand around her wrist. Looking down she saw the friendship bracelet that she and Lauren had exchanged a few days ago. On it read: 'Best Friends Forever' with a small heart next to it. Bo smiled sadly at it and with one final glance down the street; she turned on her heel and followed her mother back into the house.

Present Day.

Bo looked at her reflection in the mirror. She looked beaten. Literally. She watched the water she splashed on her face drip down into the sink. The small cuts on her face and the bruises on her arms were barely healed. The man she had used to help heal her not too long ago had only just done the job. It didn't help that he was human but it was the only 'snack' Kenzi could find on their way home. She silently cursed Dyson for being away on some case out of town.

"At least he's coming back tonight," Bo said out loud to herself. Grabbing a towel, she lightly dabbed at her face to dry it and made her way to her bedroom. As she moved over to her dressing table the sound of a car door closing caught Bo's attention. Thinking it was Dyson coming home early, she moved over to the window to take a peek through the curtain. She was surprised to find that actually it was a woman. Bo watched as the woman began to pace alongside her car, waving her hands around like she was preparing herself for something. Twice it looked as if the woman was going to get back in the car and drive away. Bo smiled in amusement as the head of blonde hair finally stopped pacing and took a glance up at Bo's window. Quickly ducking out of sight, she held her breath and waited to see if the woman would knock. After a few minutes of silence, Bo decided she must have given up and bent down to pick up the towel she had dropped when a firm hard knock made her stop mid bend.

"Hmmm…guess not," she said to the empty room. Grabbing her Kimono from her nearby chair, she wrapped the sash tightly around her self and made her way downstairs. Bo took a quick glance through the peephole to see whom this woman was but was disappointed to find the blonde with her back facing the door. Her hands were on her hips and it looked as if she were taking in her surroundings. Bo eventually reached out and opened the door for her.

When the woman turned around, Bo became temporarily speechless and her jaw dropped to the floor. The Succubus couldn't believe how good the woman in front of her looked as she gave the blonde a once over.

'My GOD she's beautiful,' Bo thought to herself.

She was wearing a tight fitting pair of navy blue jeans; brown high-heeled low cut boots, a plain white top and a brown leather jacket. What made Bo's mouth water was the fact that this woman had a pair of Aviators sitting on the bridge of her nose and her blonde hair framed her face beautifully. Suddenly Bo felt underdressed and a little self-conscious. Gathering her jaw up off the floor, she managed to find what she hoped was her voice.

"C-can I help you?" She asked trying to sound casual. Bo watched as the woman slowly removed her aviators, perching them on the top of her head and looked Bo straight in the eyes. The Succubus felt a sudden sense of familiarity as she held eye contact with the woman. Bo waited as the blonde shuffled nervously and settled her hands in the back pockets of her jeans.

"H-hello Bo," the blonde said with a shy familiar smile, "Long time no see, right?"

For the second time that day, Bo's jaw dropped to the ground as realization hit her.

"L-Lauren? Lauren L-Lewis?" Bo asked, shock evident in her voice as she continued to stare at the blonde. She couldn't believe her childhood best friend was standing on her porch.

'Well, she's certainly not a child anymore,' Bo's conscious uttered.

"In the flesh," Lauren said shrugging and chuckling nervously.

Bo couldn't believe her eyes, let alone her ears.

"E-English," was all Bo could manage to sputter out in her current state of shock. Lauren smiled nervously at Bo and nodded.

"Well, at least it's something, but yes," the blonde continued, the smile on her face getting wider at Bo's loss for words "I tried to keep the accent, but I guess the English got the better of me."

"Heya Succubitch, what's with all the commotion?" Bo heard from behind her right before Kenzi appeared next to her. Realizing what Kenzi had said, Bo immediately snapped out of her trance and turned to face Lauren. The blonde was standing there with her brow raised questioningly.

"Ah…that's just a nickname Kenz likes to use for me. I don't really know why, I think she just watches too much Sci-Fi or something," Bo said quickly trying to cover up Kenzi's small slip up.

"Huh? I don—"

"Kenzi, meet Lauren, Lauren, this is Kenzi. Lauren is a childhood friend of mine. She's the one that used to live next door," Bo interrupted hoping Kenzi would get the hint.

"Ohhhhh! THAT Lauren," Kenzi said throwing her hands up in the air.

"Well, as much as I would lurrrve to be in the middle of this uh, reunion soup of awkward," Kenzi said gesturing between the two woman, "but this sexy momma has some lurrvin' of her own she needs to get from her man. So…catcha later Bo-Bo, B-T-Dubs, D-man wants you all dolled up by eight t'night….oh and nice meetin' ya Hotpants!" She managed to call out before jumping in Bo's yellow Camaro and speeding off down the driveway.

"I'm sorry Bo, I didn't know you had plans. How stupid of me, I should've called or…or something, but I wanted to check here first an—"

"Lauren," Bo said softly, a smile crossing her lips.

'She's so cute when she's all flustered…wait. What?!'

The brunette shook her head to rid of these thoughts and looked over at Lauren again.

"It's okay, come on in," the Succubus continued moving aside to let Lauren in. As Lauren brushed past Bo, she couldn't help but catch a whiff of Lauren's perfume. For a second Bo just stood standing at the door before she could gather herself. Questions began to whirl around in her head as she led Lauren into the kitchen and signaled for her to take a seat on a stool by the kitchen island.

"Would you like something to drink?" Bo asked leaning against the sink, facing Lauren.

"Water is fine," Lauren replied softly. Bo nodded, grabbing a glass and filling it with water. As she handed Lauren her glass of water, their hands brushed and Bo felt herself shiver slightly. For a while the kitchen was filled with silence as Bo stood watching Lauren as she took a sip of her water. When she finally placed the glass down, she looked up at Bo and smiled.

"Thank you," she said.

Bo couldn't help but melt internally at that smile. It was quickly becoming her favorite thing to see.

'Argh. What the fuck is wrong with me?!'

"So…" the blonde said again, "I guess we have a lot to talk about huh?"

"Yes…we do," Bo replied chuckling. She still found it strange hearing Lauren speaking in an English accent.

"What's so funny?" Lauren asked her looking slightly amused.

"Your accent. I guess I was still expecting..." Bo sighed and decided to change the subject instead. "So when did you get back?"

Lauren noticed this but didn't pursue it.

"About four days now," she answered. "I got a job offer and I took it. I have two weeks to settle down and get accustomed to how things are before I start."

"Oh? What is it that you do now?" Bo asked genuinely interested.

"I'm uh…I'm a Doctor," the blonde replied shyly. Bo smiled at this remembering that Lauren had always wanted to be a Doctor. She remembered the days when they would play 'Doctors' and Bo would just be her willing patient.

"What are you smiling about?" Lauren asked curiously breaking Bo's train of thought.

"Just about how we used to play Doctors when we were younger is all. Guess I can say I was your first patient then huh Dr. Lewis?"

Lauren laughed and Bo couldn't help but notice the blonde's cheeks turning red from embarrassment.

"Well, you were a very cooperative patient," she replied teasingly. "I can safely say each piece of candy was well deserved. So what about you Miss Dennis? Er…it's still Dennis right?" Lauren questioned.

"Yep. Still Dennis. But no, I didn't become a Psychiatrist like I wanted. Things got…complicated after High School. How's your Gran?" Bo asked wanting to change the subject. Ever since she was told she was Fae, she had stayed away from a lot of humans in her life. Kenzi had been lucky. Bo may have been unaligned in the Fae world but she knew the rules.

Bo didn't know if she was going to be able to keep this secret away from Lauren. Especially now that she seemed to have moved back for good. When they were younger, Lauren could always tell when Bo was being secretive, she just hoped that she wasn't as observant as she was.

If Lauren did have any indication of it though, she didn't say anything. Bo found out that Lauren's grandmother had been in and out of hospital for years before she passed away after six years of them being in England. Lauren's mother had been extremely upset after her Gran's passing had decided on them living there permanently. One of the most important things Bo found out was that Lauren was single, which for some reason made the brunette inwardly pleased.

They shared a few laughs at some of their childhood memories and Bo tried best as she could to answer Lauren's questions without slipping up about her being Fae. Bo felt guilty and she hated having to lie to Lauren.

So far everything was going smoothly. The only other thing Bo couldn't figure out was why Lauren had decided to come back to Canada. From the way it sounded, Lauren had a great life back in England. Throwing caution to the wind, Bo asked the question that was burning in the pit of her stomach.

"So uh…why did you come back here? I mean, it sounds like you had the perfect life there," Bo asked trying to sound casual. It took a while before Lauren answered.

"My life was far from perfect Bo," Lauren paused.

"After we moved, things became harder for me. I became extremely shy and buried my nose in my books. My life wasn't all sunshine and rainbows. Far from it. If it wasn't for Ciara, I don't know if I would've finished University. I missed this place. I missed our old home and I missed…" she sighed, "…the point is. I made a promise to my best friend…" Lauren trailed off as she looked over at Bo. Just then, Bo's phone rang. The Succubus growled inwardly at the timing.

Reaching into her kimono pocket, she pulled out her phone and looked at it. It was Dyson. Bo's stomach dropped a little when she remembered Dyson was coming home tonight. "Shit!" she cursed.

"Hey Dy," she answered.

"Hey Dy? What? No 'Hey babe, I can't wait to see you tonight?' Hmm?" Dyson asked jokingly. Bo laughed it off and glanced over at Lauren.

"What time will you be home?" she asked.

"In about two hours. A little early I know, but hey, that just means more time for me to rip that sexy dress off of you tonight." Bo blushed and turned her back to Lauren as she tried to busy herself with something.

"S-Sounds good, I'll see you soon. Two hours isn't a lot of time to get ready. I'll see you soon."

"Can't wait. Love you," Dyson managed to slip out before Bo hung up. She didn't know why she was acting this way but she couldn't help it. The sound of Lauren clearing her throat brought her out of her musings.

"Well…I uh, better get going," Lauren said awkwardly. "I really didn't mean to stop by unannounced Bo, I really should've called, but I didn't have your number or anything, so I just wanted to check if you still lived here."

"It's okay," she replied as they made their way quietly to the door. Bo began to feel nervous again. She opened the door for Lauren, making sure to leave enough room for her to be able to brush past her again. The Succubus couldn't help but take in Lauren's scent once more.

"Well, guess I'll see you around Bo," Lauren said awkwardly. Before Lauren could turn on her heel and go, Bo grabbed her arm and pulled her in for a tight hug. It took Lauren a few seconds to realize what happened before she too returned Bo's hug.

"I'm glad you came," Bo said as she pulled back from the hug. "Here," she said pulling out her phone, "Give me your number. We can meet up for a coffee some time or if you need help unpacking your things, I'll be happy to help."

At this Lauren smiled and nodded and proceeded to recite her number. Then with a final wave, Bo watched as once again Lauren disappeared down her street. Only this time, she wasn't sad. This time, she was already looking forward to seeing Lauren again.

Bo had only just managed to put the finishing touches to her make up when she heard the front door open and then close again. The entire time she spent getting ready, she couldn't get her mind off of Lauren. Bo still couldn't quite believe that Lauren had returned. Had the other woman not texted her again confirming her number, Bo would've thought it was all a dream.

'God, I hope I didn't freak her out too much,' Bo thought as she remembered the moment of awkwardness they shared. She sighed and stood up to check herself one more time. Satisfied that she was ready, she made her way downstairs. When she reached the bottom of the stairs, she didn't see anyone around.

"Dyson?" She called out. Walking slowly to where the front door was, she found it wide open. As she got the opening, she found a very well dressed and very handsome looking Dyson leaning against a black stretch limo holding a single red rose in his hand.

Seeing Bo standing there, he gave her a wide toothy grin. Bo returned his smile and made her way toward him.

"Dy, what's this?" Bo asked a little surprised at what was happening.

"You look amazing," Dyson said nothing else as he leaned in and gave her a chaste kiss on the lips while handing her the rose. She took it and stood back as Dyson opened the door for her.

"After you m'lady," he said gesturing for her to hop in. When she was safely inside, he followed suit and came to sit beside her.

"Mr. Johnson, to the restaurant please," he called to the driver. Mr. Johnson just nodded and rolled up the divider giving them their privacy. When Dyson turned toward Bo, he still wore his toothy grin. Bo couldn't help but admire how good he looked in his suit and tie.

"Bo, tonight is going to be our night. I know it's a bit much but we haven't really had much time to go out anywhere nice so I thought I'd take you out to dinner tonight. Spoil you if you will," he said cheerfully.

The Succubus agreed. He was right. They hadn't been together much lately and things weren't smooth but they had been working through it. Dyson had been meaning to take her out for a while now but he never found the time for it. Her being a Succubus made things a little hard for them, especially for Dyson.

"Champagne?" He asked holding up a flute.

"Please," She replied taking the glass.

"To us," he said happily and Bo nodded returning his smile.

"To us."

When they arrived at the restaurant, quite a few people were already there. They took a seat at a secluded area that seemed to over look a lake. Bo was very impressed thus far. Dyson had definitely put some thought into this and she could tell.

Their night started off nicely. They both talked about everything and caught up on what they had been up to since Dyson left for the case. Bo however, didn't mention Lauren. Thinking she would address that when the time was right. As the night went on, Bo began to notice that Dyson was becoming more and more fidgety. Constantly checking his watch like something was worrying him.

"Okay, Dyson, what wrong? You're not going to tell me you found my mother hanging around Rainer again are you?" Bo asked suspiciously.

"Wah? N-no. Nothing like that. I just…okay here goes," he said beginning to look even more nervous. Bo watched as Dyson slowly got up from their table. Brushing his hands along his trousers, he slowly began to kneel.

"Umm….Dyson, what do you think you're doing?" Bo began to ask nervously as she looked around at the other diners.

"Ysabeau Dennis, I know that we've had our fair shares of ups and downs, but these last two and a half years have been amazing. I've learned more from you than I have in my one thousand years or so of living. I—"

"Dyson, please," Bo interrupted beginning to panic. Of all the things Bo thought would happen tonight, this was definitely not on her list of 'To-Do's" tonight.

"No. Bo please let me finish. I know that things don't always go our way, but we always manage to find a way to fix it."

"I—"

"We don't have to get married straight away Bo, I know you're not exactly ready for that, I can wait. I just…I just want you to know, that you would make me the happiest man alive if you did the honor, of being my wife?"

Bo just sat there in stunned silence as she stared at this man. This man that she has known for three years and dated for most of it, kneeling in front of her asking her to marry him. She didn't know what to say. She loved him, yes. But was she ready for the commitment?

'What about Lauren?' A part of her brain whispered. She quickly pushed that thought to the back of her mind.

"Bo, I really don't want to have to deal with the embarrassment of asking again, but please? I'm just a Wolf, kneeling in front of a Succubus, asking her to marry him," he said watching her with hope filled eyes. Suddenly the entire room went quiet. It seemed like everyone's eyes were on her as she continued to stare at Dyson. Bo closed her eyes and took a moment to try and gather her thoughts. The silence was deafening and Bo didn't know if she could handle it.

"Yes…I'll marry you," Bo heard herself say before her brain could fully realize what she just said.