A/N: Finally, a chapter that focuses on our beloved couple together, not just how they live out their lives separately. Expect more fluff out of this than previous ones and also this is a two part chapter. Welp, there's only so much sexual hints I could put in a T-rated fanfic. I have no plans on turning it into an M-rated one tho but maybe a future fanfic/one-shot would suffice? Let me know by reviewing!

*5 days before Christmas*

"I'm driving home Phin!"

"No, I'll drive home. I'm borrowing James' flatbed again so we can load your car and all our stuff with us!"

Bella and Phineas were in the middle of an argument as to how they would head back home to Danville. The former suggested her and Gretchen would drive home together while Phineas would go solo; as for the latter, he suggested to haul Bella's Yaris on a trailer that his colleague James owns. He argued that it would save Bella time and gas if she would let him haul her car back home. However, Bella pointed out that it would be impractical for Phineas to drive to New York Penn Station with a loaded trailer, as Stacy would be heading back home to New Haven.

"Ugh," Gretchen rolled her eyes, "Lord save me!" She had just finished packing her stuff she'd bring back to Danville when she got caught in the middle of her friends' lover's quarrel.

"Why would I let you haul my car if you're gonna go to Penn Station?" Bella shot back.

"Because Kelly asked me to drop off Stacy there." Phineas retorted, "She doesn't want to drive all the way to New Haven and she most certainly doesn't want to leave her car in the train station's parking lot."

"CUT IT OUT!" Gretchen stood in the middle, stretching her arms in front of the two. "Jeez, you two need marriage counseling or something!"

"But Phineas here wants–"

"Drop it Bella." The short-haired brunette placed a finger on Bella's lips. "You two should know better when it comes to arguments. Seriously, this one about who's gonna drive or not is petty as hell!" She turned to the redhead, "Phineas, just let her drive back home, okay? We're only gonna put my stuff in her car while you can have hers on your truck."

"Fine." he reluctantly agreed.

Bella and Gretchen were on the former's hatchback, heading back home to Danville. Traffic had backed up pretty bad on their usual route, which was through the port access backroad, so they took the highway and were only backed up with traffic at Danville exit. Add that with 7 inches of snowfall and you have a recipe for gridlocked holiday traffic in the Tri-State Area.

They also brought another friend of theirs: Adyson Sweetwater, better known as Addy, also attends TSSU taking up an Education Major in Science. The trio didn't even know that the short brunette attended the same college as they did – last they heard she was attending at Danville U with Holly. This afternoon trip back home is all about the two roommates interrogating the fellow Fireside alum about her attendance in their campus.

"So why haven't we heard from you that you were there all along?" Gretchen asked.

"First off, I have some new friends just like y'all. Second I'm not really considering myself as popular and I like to keep it that way." Addy replied.

"Says the girl who tried hard during high school to be at the top of the popularity boards!" Bella riposted, recalling the time she and Gretchen hooked Addy to the most popular jock back in high school. The short brunette blushed in embarrassment of that memory and despised herself in dating someone high on the popularity ranks.

"Shut up!" Adyson protested, earning a hearty chuckle from her two friends.

"You know what Addy, we three should hang out more often again." Bella offered.

"Indeed. Here we thought it's just me and Bella stuck here all year long, while the rest of y'all are in Danville U." Gretchen added.

. . . . .

While the three girls had their catching up with each other, Phineas was just about to head home after dropping off Stacy at New York Penn Station for her return trip to New Haven. He was driving solo, with only his and Bella's stuff eating up the rear cabin. Normally, the redhead is used to having his cabin void of passengers and noise, save for the Spotify playlist he's plugged into the truck's head unit. But with the traffic backing up worse than usual, Phineas decided to video call Kelly through his already Bluetooth connected phone.

"Kelly! What's up brother?" Phineas greeted his roommate, who appeared on his screen.

"Doing well down in sweet home Alabama." Kelly replied.

The redhead chuckled, "That's great. I just dropped off Stacy at Penn Station and now on my way home."

"Yeah, she just called in before you did."

The two roommates chatted like usual, even though they're a thousand miles apart. This not only relieved the boredom caused by the gridlock but also Phineas found a distraction from a rough, albeit petty argument with his raven haired girlfriend a while ago. He told Kelly about their earlier altercation and how Gretchen managed to shut them down both without physical retaliation.

"If I weren't stuck with my Stace, I would love to date Gretchen!" Kelly said jokingly.

"You wouldn't!" Phineas playfully riposted.

"Of course not!" Kelly laughed, before returning to his serious tone. "But seriously, any man would be lucky to be dating her."

"Yes, yes they would."

By the time Phineas and Kelly finished their call, the former was already parked at the driveway of their house. He first brought his girlfriend's stuff to her house right across the street. After a lengthy but warm greetings from her mother, the redhead teen headed to Bella's bedroom to drop off her bags when he saw his girlfriend wearing only a tight-fitting shirt and boxers. She appeared to be braless as her ample bosom peeked through her top. Phineas was frozen at the moment, staring at the curves chiseled on her chest; his mind running wild as to what could be hiding underneath that piece of fabric.

Bella took notice and she walked slowly towards him, her blue orbs trying to catch Phineas' gaze. Once she inched closer to him, she lifted up his chin. Her eyes are now locked into his gaze and stayed in this position for what felt like hours.

"You know, my eyes are here baby." Bella smirked, prompting Phineas to suddenly drop the bags. They left campus fuming at each other, and now Bella is acting all seductive on Phineas. Wait, what happened to the fiery, explosive woman I saw earlier? he thought.

"Oh..uhm…sorry about that." He stuttered, a crimson blush overtaking his cheeks in embarrassment. Try as he might, he couldn't seem to take his eyes of off her chest.

"So what do you think of me going braless more often?" Bella asked.

"Let's leave it to being indoors for now." Phineas suggested, still blushing hard. Suddenly, Bella gave him a bone-crushing hug – her soft, firm breasts pressing on his chest. "W–what are you doing?"

"Giving you a hug, duh." she mumbled as her boyfriend caressed her raven locks.

"Are you sure about this?" Phineas asked concerningly. Deep down, he secretly loved her soft mounds pressing against him. She can totally ditch the bra, she's so freaking soft!

"I know you love it when I press myself to you like this. Even better without the bra." The two of them stayed in the embrace for a while, until Phineas broke free.

"So what y'all ladies talked about earlier?" he asked, changing the topic.

"This Christmas party that Ginger's trying to pull off. Addy told us she just got home from Japan and wants to ask if your backyard's free." Bella explained

"Is that a question? Of course it's always free!" She chuckled at hearing that line, knowing the answer and just wanted to hear her boyfriend's reaction. "Are we gonna have some sort of share of work to do?" the redhead continued.

"Oh right. You, me, and Katie would be in charge of buying the food supplies and the lights and sounds equipment. Apparently she runs this events equipment rental store her dad owns." she recalled.

"I see." Just then, Bella's mom called from downstairs.

"Isabella! Dinner's ready! You should have Phineas here as well." she called.

"Coming Mom!" Bella answered, before turning back to Phineas. "Looks like she beat me to it."

Being an owner of a Mexican-Jewish resto, Vivian Garcia-Shapiro cooked pot roast with potato wedges and Caesar salad. She was quite the inquisitor; grilling Phineas on his treatment to her daughter during the 1st semester. Even though she trusted the redhead, things were slightly different when your daughter's best friend becomes her boyfriend. This ended with a lot of blushing, laughing and the occasional cheek kisses.

Afterwards, the couple went back to Bella's room to fix the things she brought home from her apartment, which had make outs in between and little progress was made in actually fixing her stuff. Once it was time for Phineas to head home, the raven haired Latina walked him across the street to his doorway.

"You know babe, I'm gonna get myself some shut eye for the long days ahead. Good night." Phineas sighed tiredly, pulling Bella in for a quick kiss on her lips.

"Good night honey, I love you." she purred as they pulled out, tucking one of her stray bangs aside.

"Love you more." and the door behind him closed shut.

The following morning, Bella came over to her boyfriend's house to prepare their share needed for their Christmas party to be held at the backyard they've grown to since they were kids. She knew it would be a long, expensive day at the mall buying the food items required for the party. She went to the garage and saw the lithe legs of Phineas working underneath his Ram 2500. Even before Phineas became a bus mechanic, he's used to repairing their cars which prompted him and Ferb to start a backyard garage where they work on their neighbors' cars.

"What'cha doing?" she asked in her perky tone Phineas had gotten used to for 15 years.

Her boyfriend rolled out of the car, oil smeared over his shirt and face. "Just doing routine maintenance on this bad girl. You?"

"You know we're gonna go to the mall to buy the food for the party." Bella reminded him, wiping off the oil smeared in his cheek before planting a kiss on it.

"Let me just clean up and then we'll be on our way." Phineas said.

"Oh how I wished to share the shower with you hun." Bella smirked. Phineas knew the trademark smirk and twinkle of her blue eyes when she's seducing him; it's quite the turn on, even though he wouldn't admit it out loud.

"You want to? Mom and Dad left earlier and Candace won't be here until Christmas morning." he reciprocated, teasing his girlfriend some more.

"Come on, get outta here! You smell like oil already!" she playfully pushed him inside the house.

"Alright, alright! I'll give in."

After Phineas was done cleaning up, him and Bella went to the Googoplex mall to meet up with Katie and buy all the necessary ingredients for their feast. It was a hassle for sure but Phineas and Bella didn't mind, especially now they have all holiday season long to make up for the missed meets they've planned during the 1st semester. At first, the adjustment was challenging but with the help of their college friends, that period had been long past and it had solidified their relationship even further. Yeah, I can't imagine a world without him in it. Bella thought, gazing at the tousled red locks of Phineas before giving it a good tussling.

"What was that for?" he asked quizzingly, fixing his hair back.

"I just love messing up your hair." Bella smirked, prompting Phineas to roll his eyes.

"Why would you mess it if it's already messy in the first place?"

"Can't you save the lovey dovey shit for later?" Katie annoyingly asked.

"NO!" the couple replied, causing the blonde teen to flinch.

"Jeez, no need to blow a head gasket!" She raised her hands in defeat.

Despite the long lines in the stores they visited, the trio enjoyed each other's company. From Katie asking countless questions about their relationship to just random catching up; it made the shopping trip bearable, keeping their sanity in check. Afterwards, they went to Katie's dad's shop: Firelight Stage and Implements Rental, to pick up the lights, speakers, laptops, and the trusses which were all loaded to a 20ft long enclosed trailer. When they returned home, the rest of the gang were already there, waiting for them. They all looked at Phineas expectantly, as if he were going to head the project. When he was younger, he was confident and headstrong; now, he was still confident albeit more collective, and he was a bit nervous.

"You know what to say, hun." Bella nudged his arm in encouragement. Phineas smiled, took a deep breath, before he said those eight words that defined the start of a Big Idea.

"Guys, I know what we're gonna do today."

Over the course of the next few days, the ex-Fireside girls with the rest of the gang brought all the required materials together. Phineas, Buford, and Katie did the lights and stage; Addy, Gretchen, and Milly with the tables and chairs; Baljeet and Ginger handed out invitations across the neighborhood; and Ferb, Bella, and Holly did all the cooking. Even though the Flynn-Fletcher folks offered their assistance with the party, the gang politely refused as they wanted to prove to their folks that they can pull off anything when they're together, especially now that they matured physically and mentally.

When they finally finished on the morning of Christmas Eve, they were speechless at the end result. The Fireside Alum Christmas Bash Reunion looked like it'd been prepared by a professional events catering team from the stage to the placement of the buffet tables. Now they just had to wait for people to show up.