chaesoo smut.

god, you're such a virgin.

WARNING : sort of incest ⚠

Words count : 2k

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15 year old Chaeyoung giggles as she skips into her room, excited to tell her sister about the grade she got on her math paper.

“Hey, Jisoo, guess wh- oh my god!” Chaeyoung screeches and covers her eyes, slamming the door shut.

Jisoo rolls her eyes and pulls her pants her, pausing the porn playing on her laptop.

“Calm down, Chaeyoung.” Jisoo sighs. Chaeyoung frowns and shudders.

“What are you doing?” Chaeyoung cries, still not turning around.

“It's natural, Chaeyoung, you're telling me you don't masturbate and watch porn?” Jisoo asks which makes Chaeyoung shuffles uncomfortably. “Oh my god, you don't?!”

“N-No.” Chaeyoung mumbles.

“Not once? You've never touched yourself?” Jisoo asks in shock. Chaeyoung shakes her head uncomfortably.

“It's weird.” Chaeyoung pouts, taking her hand away from her eyes but not turning around.

“It's just porn. Come watch a video, you'll see it's not bad.” Jisoo says which makes Chaeyoung gasp.

“I'm not watching a-a porn with you, Jisoo!” Chaeyoung cries. “That's disgusting!”

“How do you expect to ever get a girlfriend if you won't watch porn? You won't know what to do when you have sex.” Jisoo says casually.

Chaeyoung blushes embarrassedly. She doesn't like watching kissing scenes let alone watching people do that!

“Come on, think of it as your birthday present. I'm giving you experience.” Jisoo tells her.

“Our birthday isn't for another 8 months.” Chaeyoung whispers.

Jisoo sighs and walks over to her sister, spinning her around to be met with a red cheeked Chaeyoung. Jisoo giggles and pulls her over to her bed, pushing her down and settling in next to her. Chaeyoung feels her heart race and Jisoo scrolls through the videos, blushing even deeper than before which she didn't know was possible.

“Here.” Jisoo says and clicks on a video, turning the volume up a bit.

Chaeyoung's eyes widen at the moans coming from the laptop. The man is behind the girl, pounding into her from behind, pulling her hair roughly. The girl seems to be enjoying it vigorously, by the sound of her moans of course and the way her face scrunches up in pure bliss. Chaeyoung can't help the flow of arousal that shoots through her body, landing in her core. She looks down to see a tent forming in her skirt which makes her yelp, she only ever gets those when she wakes up or sometimes when she sees Jisoo naked. She doesn't know what they are though. It's not like her parents ever sat her down and explained it all to her.

Jisoo looks over at her sister when she hears a yelp, she looks down at her sisters boner and giggles.

“S-Stop laughing!” Chaeyoung begs. “I-I don't know what it is, it just happens sometimes!”

“You don't know what that is?” Jisoo asks which makes Chaeyoung shake her head. “That's a boner, Chaeyoung. You get those when you get turned on.”

“Turned on?” Chaeyoung asks innocently, blushing when the woman screams in pleasure.

“Horny. Ready for sex.” Jisoo tells her. Chaeyoung's eyes widen.

“How do I get rid of it?” Chaeyoung asks with teary eyes, she hates this. She doesn't want her sister to think she's ready for sex.

“You have to masturbate.” Jisoo shrugs as if it's the most normal thing ever.