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It was nearing the Final Selection.
You were walking down the village, then suddenly you felt your foot being pulled, you turned only to see Zenitsu kneeling before you while shaking violently and crying hysterically.
"Please marry me!! I DON’T WANNA DIE ALONE!!"
You were confused as to why or how Zenitsu went up to you, being a nine year old, after all. Maybe he wanted someone young to marry. Maybe he figured the older girls wouldn't like him, no matter how much he begged so he settled for something else. Zenitsu was still crying and shaking, screaming and begging you to marry him while people passing by looked at the commotion in confusion and mild annoyance.
"Please! Please please please marry me!!!!!"
Not quite understanding the prospect of marriage, you agreed with a simple okay. Of course, nobody wants to die alone. You sympathized with Agatsuma.
"Are you okay, Agatsuma?" As soon as he heard your response, he stopped crying for a brief few seconds while he tried to register what you just said.
"Y-you'll marry me?! You will?! REALLY?!"
He let go of your clothing and stared at you in disbelief before he tackled you to the ground in a bone crushing hug. "Eh!-"
You let out a small noise of surprise, kind of running his hair through Agatsuma's hair. It was fluffy, yet an unusual shade of yellow.
"The grounds very dirty, Agatsuma-" However, Zenitsu didn't let go of you, instead he buried his face in your chest while tears continued to stream down his cheek. He was surprisingly warm, his body pressed against yours as he clung to you like a koala. "Please get up!-"
"No!! I cant believe it! You'll really be my wife!!" A little struggle was made before a red haired teen with a scar on the left of his forehead came running to them to wrench Zenitsu off of you.
Looking around, stares came from many, along with whispers about the two. The unfamiliar teen took in the situation before he sighed, pinching the bridge of his nose while looking at the scene in front of him.
"Zenitsu! Leave the kid alone, jeez. I left for one minute and you're harassing a little girl?!"
Tanjiros expression went from tired and annoyed to serious and stern in a matter of milliseconds. "Oh, I'm going to marry him."
You pointed out, much oblivious to the big age gap, Agatsuma being sixteen and you being thirteen. Tanjiro was stunned, his eyes widen when he heard the news. He facepalmed and gave an exasperated sigh, the only thought that echoed in his mind was.
"This is going to be a disaster and I can feel it."
He leaned against the wall and began rubbing his forehead while glancing at the two of you. The kid hummed, though slightly confused, you giggled.
--Hours later...--
(ITS 2AM IM NOT WRITING ALLAT)
The Sun was on the verge of setting, the sky was a mix of a beautiful purple and orange color. You were both currently walking through the woods, the wind was blowing softly and the air felt cool.**As the night approached, the village was becoming quieter. Everyone was starting to go back to their homes and the shops were closing for the day. That didn't matter, though. They were alone with eachother.
"Are you okay, Agatsuma? You've been crying since this afternoon." Zenitsu was walking quietly next to you, but at some point he stopped in his tracks, just staring ahead. He was silent for a few minutes, not saying a word. The only thing to be heard were the sounds of the wind and the occasional cricket.
"I'm scared," he said quietly, his usual confident and happy tone was completely different, his voice was shaky and trembling, as if he would burst into tears again at any moment. "Is it because of final selection? It scares a lot of people. You're not alone."
You squeezed Zenitsu's hand, understanding it was the nerves making him feel this way. Zenitsu closed his eyes and inhaled deeply, he tried to calm himself but his body was tense and he couldn't stop trembling. He tightly held your hand and his eyes became glassy as tears began trickling down his cheeks once again. The reality of the situation they were in starting to dawn on him.
"I... I don't wanna go," He shakily muttered under his breath. "I don't wanna die."
"You're not dying. It's only seven days."
Dostoevsky pulled Agatsuma down by his hand, wiping the tears that formed on his face. He gave him a small kiss on his cheek.
"Since we're engaged, we do this, right?" Zenitsu's face went red, a noticeable blush spreading across his cheeks as he watched your every move with his mouth slightly agape. You could practically hear his heart beating rapidly in his chest as a result of the kiss.
"H-Hey! T-that was my first—"
He was interrupted by another kiss, which made him squeak in a very undignified manner, but he didn't pull away. Zenitsu's lips were soft, a hand going to his cheek and feeling his plush skin. He was easy on the eyes, and not a single part of him was rough. It was cute.
"Your first? Mine too." Zenitsu's usually confident and brash demeanor was replaced with a vulnerable and soft one as the kiss continued. He leaned into your touch and his eyes fluttered shut, a small whine escaped him as he wrapped his arms around you, pulling you close and practically burying his face in the crook of your neck.
"Y-you can't just—," He mumbled incoherently, "—do that to me so— suddenly..."
"You're okay."
He pat Agatsuma's head. Zenitsu was basically on his knees as he clung to the small child, being so much younger. Zenitsu's body slowly relaxed in your embrace as he found comfort and safety in your arms. He nuzzled his face against your chest while his hands clutched at your clothes, imagining them disappearing into thin air before he mentally slapped himself because this is a child we're talking about.
"Y-you're so damn young," He muttered quietly, "But... why do you make me feel so— so—" "Are you aroused?"
He blushed just a hint at the perverted thought but of course, married people did this all the time. It was natural and it should happen, right?
"I mean, we're getting married, right? It's nothing to be ashamed of." Zenitsu could practically feel his face get hotter. He mentally slapped himself for asking that stupid question. That damn child was very straightforward.
He tried to speak but no words would come out. Instead he just hid his heated face behind his hands while he let out a deep sigh, trying to hide the effect the question had on him.
"I— I... ah..." A choked squeak escaped the younger teenager at your sudden intrusion as well as your tight grip on his waist and he instantly went red. His eyes widened as he was not expecting that kind of touch from Zenitsu considering how he had acted when they first met.
"We- Are we going to do it out here?" You felt something burning in his chest, a strange sensation you never had before but the sound of Agatsuma's voice pulled you out of his thoughts, both heart beating fast in their chest as he evaluated the current situation. They were both outside and Zenitsu was already behaving inappropriate, though you understood that was how a man worked.
"Would you like to undress first?" Zenitsu's gaze darkened, a mixture of nervousness flickered across his expression. His hands tightened on your waist, his fingers slowly moving underneath the edge of your clothes. He swallowed hard as he looked into your eyes, his cheeks still red.
"How about you?"
He shifted closer, his voice rising an octave, his warm breath tickled your skin. "Alright."
You untied the thing holding your haori together, gently sliding the formal Japanese attire off your shoulders and on the floor.
You looked back at Agatsuma, clearing your throat as he tried to maintain a calm and collected demeanor, though the blush on your face betrayed you. Zenitsu's eyes trailed over your figure as your clothes hit the floor, studying your young and smooth form. Despite being the older one in the situation, he found himself feeling almost intimidated by your straightforwardness.
He shifted closer, his hand running up his your side, gently tracing over your skin as if he was afraid of breaking you. His other hand went to your jaw, tilting your face upwards, so you would look at him.
"You're beautiful," he mumbled quietly, "even in this situation..." Zenitsu's eyes followed your movements intensely, his eyes roaming over exposed skin, in which his behavior didn't go unnoticed. Agatsuma exhaled quietly as the heat within him grew more and more, the mere thought of the act to follow made his face red. He stepped closer, the space between the two decreasing with each step taken.
"You're rather... perverted," Zenitsu swallowed, his throat suddenly going dry, watching your every move with a mixture of desire and anxiety. He felt heat pooling in the pit of his stomach.
"Am I?" He said hoarsely. "Perhaps I'm just a guy who... wants to admire his fiancé."
He gently pushed you back until your back hit a nearby tree. The look in his eyes was dark and hungry, the need for you growing stronger by the second. "That's sweet."
He smiled warmly, though Agatsuma was on his knees he was still taller than him. The size difference was incredible and though this wasn't a kink of your it was a huge roll in this night. He leaned in, his breath hit your skin, sending shivers down your spine. His hands gently pressed you against the tree as he moved closer, his knee pushing your legs apart.
"You're so damn tiny," He said, sounding a little more confident. "and you're all mine."
Slowly, his clothes were stripped in the same manner as he shyly urged you into his arms, pulling you into his lap. His body was warm and comfortable which made you smile, also taking notice to how he seemed to be trying to compose himself. He looked like he wanted to be more eager but it made you happy that he held back for you.
His hands traveled up to your hips, holding them tight, also taking in the way your hips stuttered as he applied pressure, digging his nails into your skin, no matter how soft. You wrapped your arms around Agatsuma, putting you head in the crook of his neck.
Agatsuma held you close, holding you tight to him as his hands began to wander lower, beginning to slide up your thighs. He seemed much to scared to do it himself, so you slowly guided his fingers over your underdeveloped cunt, the slick seeping onto the floor, causing little gasping noises to come from you as he slowly ran circles on you.
He gently pushed a single finger inside, making sure to be slow. His other hand began caressing your thigh, as he looked at his face and tried to read your expression. To make sure you weren't in pain. "Is that good?"
"Yes,"
Per your request, he added a second finger inside, pushing them slightly further into him. He moved and curled them very slowly, just as you directed. He never actually done this before, so he relied on your input more then ever.