ONESHOTS || Katsuki Bakugo

Infinite Memories

Summary: It's Katsuki's 25th birthday. After celebrating and cleaning up, you take him on a trip down memory lane.

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Katsuki made sure everyone at the party knew he was forced to be here and didn't like this shit at all, but you knew that was far from the truth. Standing with a glass of wine in your hand, you couldn't help but grin at him as he sat with his friends, Sero's arm slung around his shoulders. He was smiling unawares. He was totally enjoying this.

Everyone had agreed to hold Katsuki's birthday party at his parents' house, given they had an enormous backyard. Mitsuki had cooked an amazing dinner while you and Mina decorated the backyard, leaving the boys to get the cake. It was supposed to be a surprise for Katsuki, but of course, he had to go and say he already remembered it was his birthday. It was just like him. You couldn't count the number of birthdays you tried to surprise him. He even acted like he was confused, but you knew better.

After the party, you and Katsuki stayed back to help with cleaning up. You dumped the plastic plates in a trash bag and then helped Mitsuki wash the dishes while the birthday boy removed the decorations in the back.

"Are you sure you guys don't want to stay?" Mitsuki asked one last time as you two stood in the doorway.

"No, ma," Katsuki said, "It's been a long night. Gonna go home and sleep."

"You can do that here, too," Mitsuki insisted.

"We won't fit in my old bed, you know that too," he sighed.

"Alright, then. Good night." Mitsuki pulled you in a hug and gave Bakugo's cheek a smooch despite his protests.

As soon as you entered the apartment, you took off your heels, kept the food Mitsuki had packed for you and joined Katsuki in the bathroom. He stood shirtless in the bathroom, brushing his teeth as the bathtub filled with warm water. You stood in front of him, grabbing a wipe to remove the makeup from your face. He rinsed his mouth and took the wipe from you, tilting your face towards him as he gently cleaned your face.

You guys undressed, stepping into the shower cubicle, big enough for two. Katsuki sat on the step stool, and you shampooed his hair for him, followed by cleaning his back while he scrubbed the rest of his body. He did the same for you afterwards, massaging your shower products into your hair and washing your back while whispering sweet nothings in your ear, planting an occasional kiss to your neck.

You joined him in the tub after that, your head on top of his chest while his fingers brushed through your wet hair, his eyes closed, "Did you enjoy the party, 'Suki?"

"A little," he replied. You could feel his voice reverberate in his chest.

"Just a little?"

"Very little," he opened his eyes, looking at you with a smile, which told you he did enjoy the party. You shifted to kiss him, working your way around his jaw and onto his face. He caught your lips in a lazy kiss, his hand tracing up and down your spine. It was getting very late, and Katsuki had to go to work in the morning.

In the bedroom, he sat on the bed as you did his skin care for him, patting serums and moisturisers onto his skin. He crawled under the covers once you were done, resting his head against the headboard as he watched you do your skincare in front of the mirror. You caught his eye in the mirror and glanced back, "Don't go to sleep. There's something I want to give you, birthday boy."

"Okay," he replied, his crimson gaze following you as you left the room. He fought to stay awake as his eyes slowly shut.

"You're falling asleep," your voice brought him back to his senses.

"I'm not," he retorted.

You smiled and sat beside him, slipping under the blanket. You handed him a photo album. He took it from you, looking down at it. It had a beige leather cover with a heart engraved on the front. Inside the heart was a word in italics: Us.

He opened the album and was greeted by a picture of him and you as toddlers, only two years old. A smile danced on his lips as he looked down at the picture. You were crying in it because he had snipped one of your pigtails while he sat on the floor with a pair of scissors, a gleeful grin on his face. Under the picture, written in your handwriting was, 'I'm not sure which one of the adults left you alone with a scissor, but I'm still mad you cut off my cutesy hair.'

"Heh, I was a fucking hair stylist!" Bakugo exclaimed, all his sleep gone.

"Hair stylist, my ass. You just cut off a huge section of my hair."

He turned the page to see more baby pictures of you two, with a picture of you guys standing in your elementary school uniforms on the next page. You were grinning at the camera while Bakugo pouted, looking like he'd stab someone with the stick in his hand. He found your commentary under the pictures hilarious, 'My boyfie does not like school.'

The album brought back so many special memories he had with you. His fingers stopped over a page with a picture of you wearing a crown made of different flowers while he stood beside you, little ears dusting pink, 'He decided to marry me when we were six.'

"Where did you get that picture from?" He groaned, running a hand down his face in embarrassment, "I don't even remember anyone taking a picture of us!"

"Well, my father had it," You smiled, glancing up at him. He still blushed like he did when he was six.

He flipped through each page with you, smiling at the wholesome ones and scoffing at the embarrassing ones, each turn of the page a reminder of the constant and unwavering support you gave him to this day. In this album you made him, he took a trip through his middle and high school days he spent with you. You also put a picture of him receiving his award for making it to the top two, 'Proud of you, Dyanamight- your #1 fan.'

There was a picture of your guys' engagement and wedding. He shook his head and laughed at them, blinking away the tears that were starting to form. How far he had come with you. The last picture was a fresh one. It was from the party. He was looking at you as you stuffed your mouth with the cake, 'Happy 25th birthday, Katsuki.' Mitsuki was the one hopping around with a polaroid camera. He was sure you got it from her.

"Thank you, y/n," he said, looking to his side to see you had fallen asleep on his shoulder, your mouth ajar.

His hand searched for his phone under the pillow. He opened the camera app, switching to the front camera. He snapped a picture and stared at it for the longest time. It was beautiful, with the bedside lamps casting a golden hue around you two. He found it adorable how your cheek was mushed on his shoulder with your mouth open. He'd get it printed on his way to work and put it in the album.

He'd slowly stick more pictures in it over time. When pages would run out, he'd add more pages because he still had infinite memories waiting to be made with you.  

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