I got this idea after seeing a six-page comic by the Twitter user Zack PyO (or at sign pyo_hn) that's called Yusei's day. I couldn't help myself getting inspired by it, especially by the end of the comic. So credits go to Zack PyO, and go check out their Twitter! Their artwork is fabulous!

This one-shot is a Roommate AU in which the Signers and Estelle live together in a house in a peaceful world, meaning there's no Crimson Dragon or Iliaster or fighting to protect the world and future. It's like a normal life. The characters are as old as in the end of the Ark Cradle arc, but before the time skip arc.

WARNING! Sexual suggestions and dirty talk!

The one-shot is in Yusei's point of view.

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The alarm clock woke me up at 7 a.m. as usual. I grunted softly as I was waking up from a pleasant dream and turned around in bed to press the snooze button of the annoying alarm. My hand patted the nightstand as I blindly searched for the alarm. I quickly found it and shut it down.

I sighed in relief that the noise was over and rested my left arm on my forehead before I slowly opened my eyes. I was greeted by the ceiling of the shared bedroom with my lover where a small line of sunlight shone through the closed curtains.

I heard a soft moan from my right as I felt Estelle moving on my right arm. I smiled softly before I turned to my side and watched the brunette who was still sleeping. Her lips were open as she instinctively moved her head onto my arm. I smiled to myself before I wrapped my left arm around her waist and brought her closer to me.

"Estelle…", I whispered softly in her ear. "Wake up…"

Estelle mumbled something I could barely hear before she opened her eyes that were still foggy after the sleep. "Huh…?"

I chuckled softly before pressing a soft kiss on her right cheek. "Good morning…"

Estelle giggled by the kiss as her eyes got clearer. "Good morning, Yusei…"

I couldn't help but cuddle with her a little. "Did you sleep well…?"

"I always do when I'm with you…", Estelle responded as she wrapped her right arm around my waist. "I feel safe in your arms…"

I smiled as I planted another kiss on her forehead. "And I'm happy to have you in my arms…"

Estelle giggled soft before she reached forward and kissed my left cheek, right on my marker. I couldn't help but feel a shiver run down my spine at the skin contact. It always felt good to be kissed on my marker; it made me forget its original purpose and feel loved by my girlfriend.

"I wish we could stay like this a little longer…", Estelle said before she sat up and grabbed her glasses at the nightstand on the other side of the bed. "But the breakfast won't get done by itself."

I nodded before I sat up myself and rubbed my eyelids to get rid of the sleepiness. "Yeah… I'll get Jack, Crow, and Leo. You get Aki and Luna?"

"As usual", Estelle nodded with a tired smile.

The two of us changed our pyjamas into shirts and pants after we washed ourselves. I went to Jack's room first to see he was still asleep. One thing that amused me was he was cuddling with a plush Red Dragon Archfiend that he got from Carly as a birthday present. Carly had sewed the plush toy herself, so it wasn't the best work, but Jack had still accepted it. It was a bit comical to see the big Jack Atlas sleeping with a plush toy, but I wasn't going to judge him for it.

"Jack, it's morning", I called as I gently shook his shoulder.

"Hurhg…", Jack muttered in his sleep before he opened his eyes. "Shut up… I need my sleep…"

I gently shook my head. "Jack, if you don't get up now, you'll be late for work."

"Alright, alright…! Just be quiet…", Jack growled as he sat up on the bed.

I left Jack's room and walked into Crow's, seeing he had kicked off his bed sheet on the floor during his sleep. I picked up the sheet and folded it neatly before placing it at the other end of the bed.

"Crow, wake up", I called softly as I shook his shoulder.

Crow snored loudly before he stopped and opened his eyes. "Huh…? What…?"

"Good morning", I greeted with a soft chuckle. "It's time to get up for college."

"No, not college…!" Crow groaned as he covered his face with both his hands. "I stayed up late for my part-time work…!"

"You can't skip college", I told him sternly. "You need the education, and you've got a scholarship."

"Yeah yeah…", Crow muttered before sitting up. "I'll be ready in ten."

I nodded and walked out of his room. Now I only had Leo left to wake up.

I opened the door to his bedroom and spotted him immediately by his desk. There were several parts of tiny Morphtronic Monsters figurines that he must have been working on half the night…again.

Leo was snoring loud as his head rested on the desk. I chuckled softly at him before I gently removed the parts he had in his hands before lifting him up in my arms. I closed the door to his bedroom and carried him to the male bathroom where Jack and Crow were brushing their teeth while still being half-asleep.

"Yusei…?" Leo mumbled as he woke up and rubbed his eyes.

"Morning, Leo", I greeted him. "It's time for school."

"No…!" Leo groaned as I placed him down on the floor. "I'm tired…"

I chuckled as I rubbed the top of his head. "Make sure to wash yourself and brush your teeth before changing into your school uniform."

"Boooring…", Leo complained sleepily before he grabbed his toothbrush and tube with toothpaste.

Seeing everything looked okay, I left the bathroom. I walked past the closed door of the female bathroom and heard water running, so I knew Aki and Luna were also up.

I walked down the stairs to reach the kitchen where I smelled mouthwatering scents. I walked into the kitchen and saw Estelle by the stove, stirring soup in a pot. She had a red apron on her with black pentagram stars scattered around, and her brown hair was tied up in a ponytail.

I felt a heat in both my cheeks and in my stomach as I took in the view of my girlfriend. Even dressed in a simple shirt and pants and her hair tied up, she was still beautiful. I snuck up behind her and wrapped my arms around her waist.

Estelle giggled softly as she leant her head against my chest. "Did you get the boys?"

"Yeah", I nodded as I inhaled the scent of her hair. "They were all tired, especially Leo. He played with his figurines again."

"I figured", Estelle nodded. "Aki and Luna were easier to wake up." She poured a little soup on a small plate and took a few sips. "I'm trying out a new recipe, but I don't know if the seasoning is right. Do you want to try it?"

"Sure."

Estelle poured some soup on the plate again and carefully lifted it to me. I gently took her wrist in my hand to steady her before I tried the soup. It tasted good, but she was right. Something was missing.

"Maybe a little more black pepper?" I suggested.

Estelle nodded before she put down the plate and grabbed the pepper mill to add a little more pepper. She stirred the soup for a few seconds before she poured the soup on the plate again. She took a little sip before offering the rest to me.

I tried it again and nodded. "This is good."

Estelle smiled widely. "Thank goodness. I, too, think it's good now." She left the pot to concentrate on the fish that was already sliced up and just needed to be fried.

"Is there anything I can help you with?" I wondered.

"Just set the table", Estelle replied. "The coffee and tea water are also ready, so everyone can get their drinks."

I let go of her waist and grabbed the mugs, glasses, and cutleries to set the table. I grabbed an orange juice bottle from the fridge and placed it in the middle of the table next to the coffee and tea boiler on a warm electric plate to keep the liquids warm. Once that was done, Estelle gave me everyone's share of the breakfast which consisted of soup, fried fish, and rice. Just as I finished setting the table, everyone was coming down, fully dressed for the day. Aki, Crow, and the twins were wearing their school uniforms while Jack had his usual attire.

"Yum! It smells delicious!" Leo said in joy as he sat down on his seat.

"Make sure to eat all up before it gets old", Estelle said as she was still busy by the stove to make everyone's lunch boxes.

"Oh, we sure will!" Crow nodded as he quickly said his prayers before digging in.

"Crow, please take it slow", Aki sighed.

Jack poured a cup of coffee and sipped it for a moment before eating his breakfast. "Ahh! Coffee is just the best in the world. Still, I'd prefer to have Blue-Eyes Mountain instead of this black coffee."

"Blue-Eyes Mountain is too expensive, Jack", I told him as I used my chopsticks to cut my fish into smaller pieces. "We need to save up so we don't get evicted from the house."

"I know", Jack muttered.

"Are you not going to eat, Estelle?" Luna wondered.

"I will as soon as the lunch boxes are done", Estelle replied over her shoulder. "I'm making some tamagoyaki."

"Tamagoyaki?! That's my favorite!" Leo looked up from his soup, almost spilling it over himself.

"Leo, take it easy!" Luna scolded her brother.

"Sorry…", Leo laughed sheepishly.

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Slowly and surely, around 8:15 a.m., everyone started leaving the house after getting their lunch boxes. Estelle and I waved our friends goodbye as they headed to school and work. I was working as a freelance mechanic and Estelle as an author, so we were at home most of the time.

Estelle and I washed the dishes before we went to the living room to cuddle a little on the couch. We brought along our favorite food to spoil ourselves a bit now that we were alone. I had a large glass of milk resting on the coffee table while Estelle had a large jug of Nutella in her hands. She used a spoon to scoop up the chocolate and put it in her mouth. She moaned in delight at the delicacy.

"I love chocolate so much", Estelle commented as she licked the spoon clean. "There's no day I can be without it."

Watching her licking the spoon so sensually made my genitals a bit stiff. God, ever since I woke up I've been feeling my needs increasing by the way my girlfriend acted so innocently. We had already done it a couple of times, so I wasn't unfamiliar with the desires that were swelling within me.

I grabbed my glass to drink the cold liquid, hoping it would help me calm down the heat in my stomach. I accidently took a big sip and it caused me to slightly choke on the milk as it spilled from the corner of my lips.

"Are you okay?" Estelle asked worriedly as she patted my back.

"Y-Yeah…", I coughed as I put down the glass on the table. "J-Just drank too much at once…"

I was about to wipe the milk off my face with the back of my hand when I felt something wet lick it up instead. My eyes widened as I felt the familiar muscle licking up the milk on my lips and down to my chin. I slowly turned to my right and saw Estelle drawing herself back with red cheeks and licking her lips clean from the milk.

She giggled shyly with a heated gaze before she looked down and played with her fingers. I noticed how she pushed her thighs together as if she was holding something back. I smirked as I realized she was just as hungry as I was for something more than just our favorite food.

I grabbed her chin and turned her face to me before I pressed a heated kiss on her lips. She immediately responded with a soft moan and opened her lips for me to push my tongue into her mouth. The flavors of my milk and her chocolate blended together in mouth. It was so delicious.

Our bodies instinctively moved so Estelle was lying on the couch with me on top of her while still kissing. My arms went around her as I brought her close to feel her against me. She grabbed onto my shirt as she moaned desperately in the kiss that I was dominating.

I let go of her lips when I felt we were both out of breath. I lied her down and held myself up with my elbows while staring at her with hazy eyes, taking in her beauty. Her cheeks were red. Her lips were wet and swollen by the kiss. Her chest moved up and down for each breath she took. Her blue eyes had grown darker by her desires. Her hair was spread around her head like a halo.

She was like a masterpiece.

I leant in to bump my nose against hers. "How long have you been holding back…?"

"Too long…", Estelle responded in a soft whisper.

She sensually caressed my arms, which made me shiver in pleasure. God, I loved how she touched my arms like this!

She slowly kept moving her hands up to my shoulders and then cupped my cheeks. Her thumb stroked my marker before she leant up and placed butterfly soft kisses on it from the bottom to the top.

"E-Estelle…", I grunted as I felt the bulge in my pants grow bigger.

I couldn't resist moving my hips forward, clashing them against Estelle's. She moaned in return as she let go of my cheeks and moved back on the couch. "Y-Yusei…", she moaned as she rutted her hips back on mine, making me hiss in pain, for being restricted in my pants, and pleasure.

I glanced at the glass of milk and the jug of Nutella on the table as an interesting idea hit me. It was very unusual of me, but now I was really getting into the mood.

"How about we make this…delicious with my milk and your chocolate…?" I whispered in Estelle's ear before softly nibbling the earlobe.

She gasped when I bit her earlobe before she opened her eyes and gave me a heated smirk. "That sounds very… appetizing…", she whispered in my ear as she snuck her hands under my shirt, caressing my abs.

We got very sticky after making hot and delicious love, so we took a bath to clean ourselves up before resting in our bed after the activities.

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The complete and explicit version will be later uploaded on AO3 under my username Crimson_Priestess_of_Miracles. I'll let you know when it's up in the summary of this version.