AN: I started writing this right after 1x09 and I didn't want to change it so this is kind of an AU that disregards the rest of the episodes lol. And I know it's July but it's never too early for a Christmas fic!

"You kind of what?!" Frankie whispered harshly, standing up and firing off a few shots before crouching back down behind the barrel next to Will. It was supposed to be a quick in and out trade deal with a few members of the Russian mob but it went sideways almost instantly.

"They invited me to Christmas and I got tired of them asking about my life so I kind of told them I was bringing a friend." Will shoved another mag into the bottom of his gun, not making eye contact with Frankie.

"No you kind of told them you were bringing your girlfriend! Big difference." Frankie huffed, ducking as a shot went too close for comfort past her head.

"Do you think maybe now isn't the right time to talk about this?" Will peaked around the corner, fired his gun. One of the enemies hit the ground with a loud grunt.

"You think!" Frankie raised an eyebrow, jumping up and hitting two more mobsters.

"I count two maybe three more shooters." Will switched back into mission mode. Frankie nodded, looking around for an exit. The stream of bullets steadily decreased to nothing, they were waiting for either Frankie or Will to leave their position. It was a stand off.

"Standish how we doing on that extraction plan?" Frankie barked.

"Almost there just hang tight." Both spies heard in their earpiece.

"I don't know about Frankie but I would really prefer not to." Will chuckled looking over at her with that boyish smile that always made her stomach flutter a little bit. Although she would shoot anyone who ever repeated that on the spot.

"Okay if you guys can just make it to the back of the building well have a car waiting for you in four minutes."

"Copy that." Frankie responded, she jumped up and started to run when a hand on her arm pulled her back.

"Wait, wait, wait!" Will whispered frantically, "what's the plan?"

"I saw a door that was propped open on the side, if we can stay within the maze of creates they won't be able to see us." Frankie informed, still looking around for any potential people that may be hiding.

"I'll follow you lead boo." There was that damn smile again. Frankie had to fight back a smile and kept her face in a hard scowl.

"I never said I would do it." She deadpanned.

"Aw come on honey don't be like that." Will teased. They were in the middle of a shootout and he still managed to give her butterflies.

"Just shut up and follow me." Frankie rolled her eyes. Not 30 seconds after they started running did Frankie hear a grunt behind her, she whipped around. "Will are you okay?"

"It's just a graze I'm fine keep going." He yelled back. Dodging bullets they made it to the side door and around to the back where a car was waiting just as Standish promised. Will hopped into the passenger seat while Frankie chose the driver's side and sped off as fast as she could towards their makeshift base. Every time she looked over she caught Will staring at her.

"What?" she asked annoyed.

"Nothing," he shrugged, "just wondering if you should wear the elf hat or the antlers when we go caroling."

"Are you sure you didn't hit your head?" Frankie asked softly, feeling Will's forehead, deciding to ignore the way her hand burned when it touched his face.

"What?" Will raised an eyebrow.

"Oh because you must have forgot the part where I said I'm not doing it." Frankie said sarcastically, returning her hand to the wheel missing the contact against his skin.

"Please Frankie! I'll be just like a mission except no one is trying to kill us. Unless my sister decides to make her snickerdoodles then someone will definitely be trying to kill us." He laughed lightly. Frankie bit her lip, she wanted to say yes so bad. She secretly loved when they had to play a couple on missions but it was getting harder and harder to pretend. Ever since they kissed at that wedding Frankie has been craving more. She didn't know what happened, she couldn't stop it but she got Will's stupid 'charm virus'.

"Why don't you just bring Emma?" Frankie asked, the name leaving a sour taste in her mouth. She hasn't trusted Emma since day one. It totally wasn't jealousy, no not at all. Will sighed and rubbed the back of his neck, looking out the window.

"We uh, we decided things weren't going to work out."

"Oh." Frankie tried to keep the delight out of her voice. She knew Will really liked Emma. They sat in silence for a few more minutes. Frankie gripped the steering wheel tighter shaking her head. She took a deep breath in and out from her nose, this was going to be a huge mistake. "I have rules."

Will looked at her with excited puppy dog eyes, "so you'll do it!" Frankie couldn't help but smile softly at his excitement.

"Number one, no excessive PDA. I'll hold your hand but no kissing." She looked at him sternly, that rule was mainly to protect her. She didn't think she would survive a weekend of having to constantly kiss Will. Being CIA she's been trained and prepared for any torture scenario but nothing could prepare her for that. "Number two, no nicknames they make me uncomfortable."

"Got it boo." Will smirk instantly. Frankie gave him a look and he held his hands up in surrender.

"Number three you do my paper work for the next month."

"That seems fair." Will nodded. "Thank you Frankie, it really means a lot."

"Yeah, yeah." She said keeping her eyes on the road although she couldn't help but smile.

"I'm really sorry guys that mission kind of got away from us." Jai apologized when they arrived back to the dead drop.

"It's alright, we've survived worse." Will waved off with a wink towards Frankie. She felt her cheeks flush a bit and she ducked her head. Susan raised a subtle eyebrow at Frankie. Frankie shot her a look and Susan looked away.

"Ho, ho, ho, merry Christmas!" Ray entered the room wearing a cheesy Santa hat and carrying a case of beer. Jai and Standish rolled their eyes and moved towards the bar. Will and Frankie made eye contact and quietly ducked away while Susan was polite enough to take the case of beer from him and set it on top of the bar. "Since it's Christmas," Ray started, opening bottles of beer and passing them around to the group, "I was able to procure the team a few days off, barring any big national emergency." Ray said with his usual dorky smile. Will let out a soft exhale from beside her, she felt sort of bad for Ray. There was definitely no excusing what he did to Will but he was trying to make it up to him and everyone treats him like an idiot when she's seen him in the field and he's actually a very capable agent. Not that she'd ever say any of this aloud.

"Perfect!" Will chirped, "because my girlfriend and I are spending Christmas with my family in Boston." He threw an arm over her shoulder which she playfully shrugged off, secretly wishing she could keep on.

"I'm sorry your what?" Standish coughed on his beer.

"I was tired of my family constantly bugging me about my love life so I asked-"

"Begged." Frankie corrected with no inflection in her voice taking a swig of her beer.

"I wouldn't say begged." Will gave her a half smile.

"I would." Frankie tilted her head side to side. "Please Frankie I'll do anything." She did her best Will impression causing Susan to laugh.

"Okay, I did not say that-" Will defended raising a finger at her.

"Please stop flirting and finish the story." Jai exasperated. Frankie felt her face heat up when Jai accused them of flirting. She never realized they flirt until someone else on the team points it out.

"Anyway I asked Frankie to please come with me and pretend to be my girlfriend." Will concluded and was met with a chorus of grimaced "oo's" from the rest of the group. "What? What?" Will asked confused.

"This is not going to end well." Jai pointed out stacking the coasters along the edge of the bar.

"What why?" Will took a seat on the stool in front of him, leaning back against the bar. "We go undercover all the time on missions this is basically the same thing."

"Nope not at all." Susan disagreed. She was met with a blank look from Will and continued on, "on missions you guys are playing a character, it's easy to separate what is real and what isn't. This you guys are going as yourselves, the lines are much blurrier. If you've ever watched a rom-com or read any romance novel you guys are either going to wind up falling in love or this whole thing is going to blow up in your faces and the damage will be irreversible." Frankie and Will looked at each other before Frankie brought her hand up to her mouth and made a fart sound. She and Will burst out laughing.

"Relax Susan, it's just one friend helping out another friend. Right Frankie?" Will leaned his head toward her. Friend. That word hit her in the gut, obviously, that's what they were to each other but for some reason the word was affecting her differently.

"Right." She smiled after a beat too long. Susan gave her another look but Frankie pretended not to see it. "I'll be right back." She excused herself to the next room but Susan followed.

"Frankie I'm not so sure this is a good idea…"

"It's fine. It's going to be okay." Frankie lied but the psychologist saw right through it.

"Okay but do you remember what you told me after London?" Susan asked hesitantly, she knew it was a big deal for Frankie to open up about anything, let alone something this big.

"Susan it's fine!" Frankie all but snapped. She was tired of people trying to talk her out of a simple favor to a friend, she was a big girl she could make her own decisions. "Sorry," she whispered when she saw the hurt on her friend's face, "I know what I'm doing. What I told you passed, it was just a spur of the moment thing."

Susan eyed her friend skeptically but eventually conceded, once Frankie set her mind to something there was no use arguing with her. "As long as you know what you're doing." She said supportively.

"Hey Frankie, I'm racking up wanna play a game?"

"Yeah I'll be there in a second Will!" Frankie called back, a light smile playing on her lips.

"I'll let you get back to your boyfriend." Susan smirked.

"He's not my…" Frankie defended but Susan already left the room. Frankie took a deep breath; she was going to have to get used to Will being called her boyfriend for the next few days. She shook her head and made her way over into the pool room.

"Hey uh I found you a shorter stick since your arms aren't as long as mine and maybe that's why you keep losing, but the more I look at it and the look you're giving me right now there's probably about 100 different ways you can kill me with this so I'm just gonna go ahead and put this back." Will fake grimaced as he put the stick back on the rack with all the other ones. Frankie tried to keep her scowl but couldn't for long.

"The reason I always lose is because I let you win, wouldn't want that big strong ego to get hurt." She teased, rubbing the cube of chalk over the top of her cue.

"Oh is that what you're going with?" Will fired back. She nodded crossing her arms over her chest. "Well don't hold back on my account, let's have a real game." Frankie saw a twinkle of mischief in his eye.

"Alright what do I get if I win." Frankie took a few steps forward sizing him up.

"A weekend away with you loving boyfriend." Will smirked. Frankie scrunched her nose and shook her head.

"Try again."

"Okay fine, if you win you don't have to go Christmas caroling." Will offered. Frankie raised an eyebrow, it was intriguing. "But! If I win, you have to wear the antlers." Will's boyish grin always made her heart skip a beat. Frankie smirked, bumping him out of the way while she lined up her shot. Ignoring the way her hip burned from the small contact.

"Get ready to come up with a good story for why I'm staying home."

Frankie huffed slamming the car door. Will had a shit eating grin as he handed her a headband with antlers. "I'm not wearing that." Frankie rolled her eyes, buckling her seatbelt.

"Come on a deal's a deal." Will looked at her with those puppy eyes that made her give in way too easily. "Go on try it on." Frankie didn't say anything but yanked the antlers out of his hand and slipped them onto her head. She turned towards Will and his smile made her insides melt. "Aw look how cute you are." Frankie knew he was just teasing her but she felt herself blush anyway. Will started the car and wordlessly started driving. Frankie stared out the window, watching as they pulled onto the highway. She began wondering if this was going to be a giant mistake. What if Susan was right, what if going on this trip and playing house with Will was going to make her feelings even deeper for him. Feelings he clearly doesn't reciprocate. What if it ruins the dynamic of the team and they can't work together anymore?

"You alright?" Will asked concerned. Frankie tore her eyes away from the blur of the trees to face him. "Nervous about meeting the boyfriend's parents?" he teased and Frankie rolled her eyes.

"You're not my boyfriend." Frankie retorted staring straight ahead. Will checks his watch.

"Well for the next 90 hours or so I think I am." He smiled and Frankie tried not to smile back. Frankie fell silent again as Will continued to talk about his family traditions, she nodded along absentmindedly. "Hey are you sure you're okay?" he put a gentle hand on her knee and it lit her skin on fire.

"Yeah why?" she snapped out of her daze to look at him.

"Well because you've been staring at the radio for the last 5 minutes straight, I'm not even sure you blinked." He chuckled but there was also a hint of worry in his voice.

"I guess I'm just tired." She lied. Will leaned over and lowered the radio Frankie inwardly groaned, worried he was going to make her have a conversation about her feelings.

"We still have about three hours to go, why don't you take a nap. Can't have you falling asleep in the middle of caroling." He winked with that stupid boyish grin.

"God forbid." Frankie laughed, resting her arm against the door and closing her eyes.

The sound of the car tires crunching over gravel woke Frankie from her sleep. She stirred lightly but kept her eyes closed, not registering that the car had stopped. It wasn't until Will gave her a gentle nudge that she realized she had fallen asleep with her arm on the console, practically against his shoulder. She quickly jumped back to her side of the car.

"We're uh, we're here." Will cleared his throat, getting out of the car. Frankie leaned forward to get a better view. It was a beautiful colonial two story house, with a wrap around porch, a brick pathway and a large oak tree in the front yard. Frankie snorted, of course this is the kind of place he grew up. She started to unbuckle her seatbelt when the car door opened and Will reached for her hand.

"I'm capable of getting out of the car myself Will." Frankie rolled her eyes swatting his hand away.

"Yes but I always open the door for my girlfriend," he overemphasized the word with an arch of his brow. Frankie closed her eyes and sighed taking his hand and letting him help me out of the car. They had just closed the trunk when the front door swung open and two people in the loudest sweaters Frankie had ever seen came barreling out. Will but his arm around her waist and whispered in her ear,

"You ready for this?"

"No."

"Mom! Dad!" Will dropped his hand to go greet his parents, leaving Frankie standing there awkwardly.

"Oh my baby it's been so long!" she kissed both of his cheeks, "I swear you've grown!" his mom released him and he went to give his dad a hug. It wasn't long before his parents turned to Frankie. His mom turned to her with open arms and Frankie had to fight against every fiber of her being not to run away. "You must be Frankie!" his mom gave her a bone crushing hug which she reluctantly returned, "Will has told us so much about you, it's so good to meet you darling!"

"It's so nice to meet you too Mrs. Chase." Frankie smiled when they pulled away.

"Please honey call me Donna!" she waved off before turning to her husband, "Ron help them with their bags."

"No mom it's fine we can get it!" Will argued coming to stand next to Frankie again.

"Nonsense! You kids come inside I bet you're tired from the drive." Donna started pushing them inside.

"I am, but this one slept the whole time." Will joked titling his head towards Frankie. He grabbed her backpack off her shoulder and Frankie felt her stomach flip flop.

"I didn't sleep the whole time." Frankie grumbled crossing her arms.

"Did so, even snored a little bit."

"That is a lie I do not snore!" she huffed.

"I'm afraid you do, but don't worry it's a cute snore." Will winked and Frankie felt her face flush. Damn this was going to be a long weekend.

"You guys are just the cutest thing! Reminds me of me and Ron." Donna smiled opening the door for them. Will put his hand on her lower back while she walked in ahead of him. He had just barely set her bag on the ground when two little bodies flung themselves against his legs.

"Uncle Will!" they screamed, they erupted into a fit of giggles when Will bent down and started tickling them. Frankie smiled warmly watching the three of them.

"Who are you!?" Will asked in fake confusion causing the girls to laugh harder.

"It's Amy!" the smaller of the two gasped out between breaths.

"No that's impossible," Will pretended to think about it "you're too tall to be Amy!"

"But I am! We growed!" Amy informed with a nod of her head as she and the other little girl stood up.

"Grew," the other one corrected crossing her arms, "growed isn't even a word!"

"Yes it is, Caroline!" Amy fired back, ah so her name is Caroline.

"Is not!"

"Is to!"

"Girls!" Will interrupted the bickering, wrapping an arm around her waist again. "Can you both say hello to Frankie?" the girls both turned to her and hugged her legs the same way they greeted Will.

"Are you uncle Will's girlfriend?" Amy asked her with wide eyes. She snuck a quick glance at Will before swallowing hard and answering,

"Yes I am."

"Mom! Uncle Will brought a girlfriend!" Amy yelled before her and Caroline took off into the other room. Will and Frankie chuckled at the girls.

"Cue my sister in three two-" Will whispered as a small blonde woman came charging out of the room the two girls just entered.

"Willie omg it's been so long I was worried you weren't going to make it!" his sister jumped throwing her arms around her neck causing Will too take a step or two backwards.

"Hey Jules!" he beamed, "Man the girls got so big."

"I know they're growing like weeds and- and I am being rude, hi I'm Julie." Julie turned to Frankie giving her a hug, thankfully not as intense as the one she gave Will, "you must be the one who stole my big brother's heart."

"The one and only." Will said giving her a kiss on the cheek, Frankie wrapped an arm around his waist to pinch his side. Luckily Julie didn't see him flinch.

"Frankie," she introduced herself.

"Well it's so good to meet you! Here come in the kitchen, my husband Dave is just finishing making us all some hot chocolate before we go caroling." She spun around on her heel and went back into the kitchen.

"Your family is a literal hallmark movie." Frankie deadpanned.

"Yeah," Will grinned, "come on you're gonna love it!"

After the 5th house Frankie was still not loving it. They've had the door closed on them at least seven times, her toes were freezing and the sweater they made her wear was itchy. She was trying to put on a happy face for his family but Frankie was miserable. The only thing that made it better was Will's warm steady hand that never left hers. They were in the middle of Jingle Bells when Will leaned over into her ear, his warm breath making her breath hitch.

"I know you aren't singing," he teased.

"I'm too cold to sing" her teeth trembled as she spoke. Wordlessly Will unzipped his jacket and draped it across her shoulders and kept on singing. Frankie had to bite her lip to keep from smiling like an idiot. She pulled the jacket tight across her body, inhaling the clean scent of him. They finished the song and the owner of the home thanked them and they headed off to the next house.

"I think we should do the song about the little Christmas!" Amy said excitedly.

"Oh Have Yourself a Merry Little Christmas, that's a good one Ames," Julie said rubbing her shoulder. "Who should take the lead?"

"Hmm I think Frankie should she hasn't had a turn yet!" Amy said.

"Oh no that's okay, I don't need a turn." Frankie tried to wave off.

"Pleeeeeease!" Amy and Caroline pleaded. Frankie looked at them with their big blue eyes and sparkly Santa hats and felt conflicted. She really didn't want to sing but she couldn't disappoint their little faces. She grimaced looking to Will for support.

"Come on honey it'll be okay, I'll even sing with you if it makes you feel better." Will wrapped an arm over her shoulder pulling her into his chest. She agreed before she even had time to think about it.

They got to the next house and she could feel her heart about to pound out of her chest. The only thing bringing her comfort was the fact that Will had her back against half his chest encircling her with his arms and his lyrics book. She took a deep breath before singing the opening line.

"Have yourself a merry little Christmas." She sang out perfectly on key. Both of her parents sang very well and taught her from a young age, but she hasn't sung since their passing, at least in front of other people that is. She looked to Will and the look of adoration on his face knocked the air out of her lungs and she nearly missed the next verse. His voice harmonizing beautifully with hers sent chills down her spine. Everything around her blurred and all her nerves fell away as they only focused on each other and sang, not even using the lyrics book.

"…a merry little Christmas now." They both sang softly, slowly inching towards each other, Frankie noticed his gaze dropping from her eyes to her lips a few times and she bit her lip in anticipation. They got within six inches of each other when the bubble was broken by the cheers from their family and the family of the house. Frankie flushed with embarrassment and hide her face against Will's chest. She could feel his laughter vibrate off his chest as he thanked everyone. The two little girls kept complaining about how tired their feet were so they decided to call it a night. Will and Frankie stayed to the back of the group as they walked home. Frankie was delighted that they were still holding hands.

"So when were you going to tell me you could sing like that." Will playfully accused.

"Like what?" she played nonchalant.

"Like I couldn't breathe and my world stopped turning." Will said with raw honesty. Frankie felt her throat close up, she was no stranger to Will's compliments but never ones so deep and emotional.

"Oh come on I don't sing that good." She said shyly trying to deflect the attention off herself.

"Franks I don't know if you noticed but when you started singing you could have heard a pin drop, I almost forgot I was supposed to sing with you, kinda wish I didn't but I made you a promise." He said with a light squeeze of her hand. "If you were a Disney princess I think birds would have stopped chirping for you." He chuckled.

"You're such a dork." She giggled hitting her shoulder against his.

"Come on love birds you're trailing behind!" his mom called over her shoulder causing the two of them to laugh and jog to catch up with the rest of the group.

"Oh my gosh that was so much fun!" Will's mom gushed, taking everyone's coats from them as they walked through the door. "Well I bet you two kids are just beat." She addressed Will and Frankie who were the last ones into the house. Frankie was about to protest saying they weren't tired and would love to sit up with them but a yawn came out instead. "I'll take that as a yes. You guys can take Will's old room. I made up the bed with fresh sheets." Donna walked away and Frankie's eyes lit up and the thought of going into Will's childhood room. She looped her arm through his without thinking as they headed up the stairs.

"Oo what am I gonna find in there, some poems, your diary, box of tampons?" She teased nudging her shoulder against his.

"Ha ha, yeah very funny make fun of emotional maturity." He rolled his eyes light heartedly. "At least I'm not the one who probably has headless Barbie's in their room" he fired back and Frankie just shrugged because yeah it was true but he didn't need to know that. It was all fun and games until Will pushed the door open and revealed a double bed in the middle of the room. Frankie froze when she saw it, logically she knew if they were pretending to be a couple they were going to have to sleep in the same bed but she didn't think about having to actually sleep in the same bed as him. Will must have sensed her discomfort and began rubbing the back of his neck, a nervous habit of his she's observed. "I um, didn't think about this part." He gave a nervous chuckle and Frankie's heart softened. Of course he didn't think about it, that's not who Will was. He was so pure he didn't even consider the fact that they were going to have to share a bed. "I'll take the floor its fine I don't mind." He automatically started grabbing a pillow and blanket off the bed and laying them down on the hardwood. Even through her socks Frankie could tell the floor was ice cold.

"Will just get on the bed." She sighed walking over to the bed. She pulled the covers down on her side and then started taking off her jewelry placing them in a neat pile on the nightstand. Her hand drifted up to touch the bullet necklace that never left her neck, smiling.

"I'm fine sleeping on the floor really, I don't want to make you uncomfortable." He grunted trying to sit on the ground, he really was too selfless for his own good.

"Will no, that floor is freezing, there's enough room for the both of us." Frankie climbed into bed, deciding she was comfortable enough in her leggings and long sleeve t-shirt.

"It's fine-"

"Will if you don't get in this bed right now I'll shoot you." She deadpanned. She almost laughed at his playful surrender. "That floor is going to hurt your back." she mumbled turning over to lay on her side facing the middle.

"Careful Frankie, a comment like that might make someone think you actually care." He teased sliding into bed. His face within inches of her own which may or may not have caused her to forget how to breathe for a moment.

"No you're just old and I don't want to hear you bitching about a sore back the rest of the weekend." She quickly turned over, cursing herself for sabotaging what could have been a moment.

"There it is." She heard him mutter to himself. The mattress shifted under his weight as he tried to get comfortable.

"Oh my god sit still." She said in fake annoyance.

"Sorry this bed is a little tight, hey would you mind-"

"So help me god if the word snuggle or cuddle or whatever comes out of your mouth." She was surprised to hear laughter coming from his side.

"I was going to ask you to move over a bit but if you really wanna cuddle." He had a teasing tone to his words but Frankie had to bite her lip to stop from accepting his offer. God she wanted to so bad.

"Just stay on your side, lover boy."

AN: let me know what you guys think!