Chapter Text
‘Anatomy Lesson in the Tree House’
“The guys in my class keep talking about it,” Yoongi said, scratching the back of his neck awkwardly. “I guess a couple of them have actually had sex already, and were bragging about it.”
“What were they saying?” Jimin looked up at the alpha curiously, feeling a nice sort of warmth that his friend had felt comfortable enough to admit to him, his omega best friend, that he was wondering about certain things.
“You don’t wanna know,” he replied, going slightly red.
“I don’t think it’s anything exciting,” Jimin said, shrugging. He’d never really thought about the fact that he was different from Yoongi in any way, until they started having their health classes in school about puberty. The thing that Jimin thought was unfair, though, was that only omegas were required to take the classes. Alphas could take them if they wanted, but they didn’t have to. So most didn’t. Yoongi hadn’t, but not out of derision; it was more that he was just too lazy to take another class.
“I can show you if you want.”
Yoongi’s eyes widened, and he looked around nervously, as if someone was going to suddenly scold them. There was nothing but the trees and birds around them, though.
“Okay.”
Jimin stood up and untucked his shirt from his trousers before unfastening them and letting them fall to his ankles. Then he stepped out of them and kicked them aside. His shirt still covered up his crotch, but he could see how Yoongi’s eyes were trained on it, pupils blowing wide.
Jimin suddenly felt a little embarrassed and warm, but he wasn’t going to back out now.
“Um. I—do you want me to lie down, or do you just wanna…look from over there?”
Yoongi wet his chapped lips. “Lie—” his voice cracked, “lie down. Over, over on the cushions so you don’t get, get dirty,” he finished.
Jimin stepped over to the cushions, suddenly glad that they made a point to keep them stored in vacuum bags and had just changed out the covers the other day. He sat down, and then with a slightly shuddering breath, he lied down. He brought his knees up and spread his legs, feeling cool air on his privates.
“Shit,” Yoongi breathed, and Jimin glanced down at him as he shuffled over. His eyes never left that one spot, and knowing that his eyes were on Jimin’s soft, pink folds made him involuntarily clench. Yoongi sucked in a breath.
“Jimin. Can hyung touch? Can hyung touch you?”
“Y-yes.” He wasn’t prepared for the way Yoongi’s warm fingers delicately stroked down right between his folds, brushing against his entrance.
“Oh!” he gasped, jerking slightly and startling Yoongi.
“You’re wet,” Yoongi pointed out. “God, Jiminie, you’re so wet.”
“I know,” Jimin whined, starting to feel overwhelmed. “It’s embarrassing; don’t say that.”
“Shit.” Yoongi stroked his finger in the other direction, pressing a little harder this time, and Jimin thought he could actually hear the soft squish of wet skin and slick. He bit his lip against another moan that threatened to come out.
“Don’t be embarrassed; you’re so beautiful. And you smell so good, too.”
Jimin could feel the way the slick was dripping out of him, now. And he could smell the arousal on Yoongi; he could see the hard bulge in the front of his pants. Jimin was hard, too, cock standing up embarrassingly stiff.
“Yoongi,” he gasped. “Please.”
Yoongi’s eyes snapped up to his face. “Jimin. Can I—”
“Yes.” Jimin didn’t care what it was; he wanted Yoongi to do it. He wanted the alpha to keep touching him. He wanted him to taste him. He wanted to feel the alpha inside him. He suddenly wanted a lot of things he’d never really thought about except in passing before.
.
Yoongi pressed his pointer finger against the warm valley between Jimin’s pretty, wet folds, and his finger sank in all the way to his knuckles with no resistance. He expelled a heavy breath of air, trying to calm himself. It was hot and moist inside the omega, and so silky soft. The gasp falling from Jimin’s lips made his already hard cock twitch in his pants.
Jimin’s legs came down quite suddenly on either side of him as Jimin lost his grip on his thighs, his bare heels making loud thuds in the tree house.
Yoongi wiggled his finger a little, but there was so much room inside that the first thing he thought of was to see if he could put more in.
His middle finger squished in through the warm slick just as easily, and Yoongi rubbed his knuckles against the rim of Jimin’s entrance as he felt around.
“Your fingers are so long,” Jimin moaned, voice higher than usual. "Feels so good.”
“Yeah?” Yoongi was having trouble thinking. He pushed in a little harder, and the groan Jimin let out was worth it. Without taking his first two fingers out, he pushed in a third, squeezing past a bit of resistance before making it inside. “I wonder if I can fit the whole thing inside,” he wondered aloud, mouth going dry at the thought.
“What?” Jimin voice was breathless, and Yoongi briefly glanced up to see the way the little omega’s stomach was rising and falling rapidly. His eyes were closed, his cheeks were flushed, and his neck was extended as if he was expecting—or hoping—for Yoongi to mark him.
“My hand,” he clarified. “I wonder if I can fit the whole thing inside.”
“Oh my—are you going to try?”
“I don’t know; you want me to?”
“I—y-yes. It feels so good right now, but…I feel like, like I need more. Like there’s something missing.”
“Okay.”
Yoongi carefully pressed his pinkie finger in alongside his other fingers first, spreading his fingers out to stretch the opening a little more before he pressed his thumb to the center of his palm and began to slowly push in. When his knuckles breached Jimin’s hole, he paused, admiring how stretched open he was. If the light had been better, Yoongi might have been able to see inside. As it was, he saw a thick glob of slick slip through his fingers and drip down Jimin’s ass, falling to the floor with a small splash.
“Jiminie,” he whispered. “I wish you could see how gorgeous you are down here. Does it feel good?”
“Mmmh, so good. Are you—are you in all the way yet?”
“Not yet.”
Yoongi resumed pushing in until there was a sudden wet sucking noise, and his entire fist disappeared into the omega, his hole closing around Yoongi’s wrist.
“AAhh!!” Jimin cried out, arching his back violently and clenching his fists as he then let out an overwhelmed squeal through his closed mouth. Yoongi froze, feeling the tight press all around his fist. Jimin rocked against his hand several times, moaning, and the alpha quickly licked his lips to wet them before he carefully began to open his fingers within the omega and move them around, feeling the soft walls.
Jimin was squirming and whining, loud pants spilling from his mouth as he obviously experienced the most pleasure he’d ever experienced in his life.
“Hyung,” he moaned. “Hyung, feels so amazing. Keep doing that. Please. Please.”
Yoongi shook his arm, trying to wiggle the whole thing more, creating more friction and more movement. Jimin’s cute little cock was flushed and leaking precum all over his stomach. It was the prettiest sight Yoongi had ever seen. He started pumping his arm in and out, opening and closing his fist, but when he found a small bundle of nerves inside which made Jimin squeal loudly, he put all his focus on massaging it until the omega was nearly sobbing.
Yoongi realized he really wanted to see the omega come. He wanted to see what it looked like in the exact moment that Jimin orgasmed. He wanted to see the way Jimin’s hole would clench around his wrist, the way his cum would squirt out so prettily, the way his eyes would probably roll back in his head when he whited out. He wanted to hear what Jimin sounded like when he climaxed. And he wanted to smell the post-orgasm scent on the omega.
The anticipation was almost too much for the alpha. He was throbbing in his pants; so hard that he had to fumble with his left hand to unfasten his jeans and pull himself free so he wouldn’t be in so much pain. He let himself just hang free as he continued to rock his fist around inside Jimin, his red cock standing up stiff and oozing precum onto the floorboards below him.
Yoongi closed his eyes momentarily, listening to the wet squelching, to Jimin’s whimpering pants, his desperate, “hyung, hyung, ohh,” gasps—
He opened his eyes when quite suddenly the sounds Jimin was making changed.
“Hyung!! I’m—! Ohh, ah—ah—AH!!” His words were quick and almost frantic, and Yoongi followed his instinct; he began to piston his elbow in harder and faster—until it happened.
It was glorious.
Jimin’s entire body lifted up off of the cushions, arching back as he shook with the force of his orgasm.
His mouth opened up wide, lips looking swollen and shiny.
His eyes shot open big, somehow so full of innocent shock at the surge of pleasure that it squeezed at Yoongi’s heart.
The omega’s cum shot up his chest, soiling his entire shirt, some of it going as far as his chin.
There was a moment of deafening silence as Yoongi stilled his hand inside, and then he very carefully began to pull his hand out, much to Jimin’s displeasure, if the pitifully weak whines were any indication.
“Shh, shh, I’ve just gotta—it’s okay, Jiminie,” he soothed as he finally pulled his hand free. It was coated in slick, and his first instinct was to wrap the slimy hand around his own hard cock and begin pumping roughly, not taking his eyes off of Jimin’s now gaping entrance. He wanted so badly to plunge right into it and fill the omega up, but even in the haze of omega pheromones everywhere, and his lack of sexual education, Yoongi knew not to do that. It didn’t take him long to come, jerking himself off harshly between his tight fist.
“Yoongi,” Jimin whispered just as the alpha climaxed, shooting thick cum all over Jimin’s cock and exposed stomach.
Feeling almost dizzy, Yoongi didn’t think before dropping forward, crawling over the omega, and cupping his warm cheeks in his palms. They panted at each other for a long minute, eyes blown wide—and then Yoongi leaned down to connect their mouths.
They might have kissed once or twice when they were little; just tiny butterfly kisses when they wanted to show their affection for each other. Now, the alpha licked deep into the omega’s mouth, groaning and drinking up every responding moan out of Jimin’s mouth. Their tongues curled around each other, wet and sticky, swallowing against each other without breaking the kiss.
Yoongi didn’t want to stop. Every time they slowed down, he would push in harder, changing the angle of his head, and devour everything he could.
Of course, eventually, they had to pull away. Yoongi let himself collapse against Jimin, just to his side but refusing to cut contact with him.
They were quiet, breaths evening out, the sound of the rustling leaves and chirping birds coming back to them slowly. Yoongi stared out through one of the open windows, watching a squirrel scurry across the bark of the tree next to them.
“That was amazing,” he expelled finally. Jimin hummed beside him. “How are you feeling?”
“I feel…like, like I can’t feel my legs,” Jimin suddenly giggled. He suddenly rolled over toward Yoongi so that he could snuggle into Yoongi’s chest. The alpha’s soft cock was pressed between them, right against Jimin’s, and the knowledge that both of their cum was mixing as they fit together was almost enough to make Yoongi’s brain short-circuit.
When Jimin began to purr against him, though, his alpha pride swelled up, and he wrapped his arms around the half-naked omega to hold him close.
“Jiminie?”
“Yeah?”
“Will you be my boyfriend?”
The purr stuttered to a stop before hesitantly restarting. “Really?” Jimin had pulled away and was gazing up at him with lovely wide eyes full of hope.
“Yeah. Will you?” Yoongi cleared his throat awkwardly. “Um. I know I’m not that great of an alpha, but I still think I’m better than most of those lugheads you go to class with. And…I dunno, I think you’re a pretty awesome omega, so—”
“Of course, you silly—hyung,” Jimin admonished him, sounding frustrated all of a sudden, “I’ve been wanting you to ask me out for ages.”
“You have?”
“Yeah.” Jimin scoffed. “You’re so dumb sometimes, Yoongi-hyung.”
“Am not.” Yoongi knew he was.
“Are too. But I love you anyway.” Jimin snuggled his face in against Yoongi’s scent gland, and the love confession wasn’t anything new to surprise him; Jimin was always telling Yoongi how much he loved him.
“Okay.” He hesitated. “You know I love you, too, right?” He hated these kinds of conversations. Too many feelings.
Jimin giggled. “Yeah. I know.”
“Okay. Good.”
“Yeah.”
They were quiet for another moment, listening to the breeze, and feeling the sway of the treehouse.
“Hyung?” Jimin spoke up again.
“Hmm?”
“Thanks for giving me the best orgasm in my entire life.”
Yoongi choked, and then the both of them started laughing so hard that they had to clutch onto each other to keep from falling off of the cushions.
“Anytime, Jiminie. Anytime.”
“I certainly hope so.”
The End.