Taeyeon thought she heard it wrongly.

A humming. A very quiet one, yet clear to the ears when the rest of the members have gone for dinner, and there is only their sweat and detergent lingering in the air. But she is certain she heard a hum, that definitely doesn't come from her, and belongs more to a person rather than a ringtone.

But where does it come from? Taeyeon comes out from the bathroom as she walks past a few other practice rooms. Though they are not explicitly labelled, every group uses their usual practice room and ever since they have moved to the new company building, the newer groups have been allocated to the higher floors, such as GOT the beat and aespa.

Taeyeon walks past aespa's practice room, and suddenly stops when she heard the humming again. It feels so close to her like it is coming from the inside of the practice room.

She walks closer, trying to peek into the practice room. The lights are off, but the humming gets more apparent when she presses her ear against the door.

"...Unnie..."

Her eyes widen when she heard the content of the humming, or more accurately, moaning. When the door accidentally opens, she heard a soft gasp, and the sensory lighting in the practice room lights up.

"Karina?"

Taeyeon saw the shocking look on Jimin's face, and the mess that she is trying to hide by clutching her thighs together.

"Un-Unnie...it's not what you think-"

Watching Jimin's flustered look, Taeyeon believes nothing about her statement.

"Oh really? Because it definitely doesn't look that way."

She smirks as she walks towards the younger after locking the door, a teasing glint in her eyes.

"Remember to lock the door if you are trying to be secretive hm?"

Jimin gulps as she looks at Taeyeon in fear, totally awake from the lusty high she got herself in.

"Please don't tell anyone...unnie..."

"Hmm what should I do? What's in it for me?" Taeyeon licks her lips as she scans Jimin's perfect little face, her exquisite features looking just so different from the company's usual trope in beauty.

Her eyes are seductive like a fox's, complementing a high nose bridge and plump lips. Those eyes are definitely her greatest asset, enough to hook a person's soul when Taeyeon found herself unable to move her eyes off from her since their first practice. Compared to the whole company with looks resembling deers, puppies, or bears, Jimin stands out with her uniqueness for sure.

"I..." Jimin lowers her head when Taeyeon asks back, pursing her lips timidly before looking up at the divine woman. "I don't know..."

"If you have sex with me," Taeyeon smirks when Jimin widens her eyes, shocked at the suggestion. "Of course, I wouldn't force you if that is not what you wish."

Jimin would be lying if she said she is not tempted.

"You really wouldn't tell?"

Taeyeon hums and nods firmly at Jimin's last confirmation.

"Will bring it to my grave."

"Al-Alright then."

When Jimin pushes her pants off, Taeyeon switches all the lights off in the practice room until there is only a row of light bar dimming under the mirror. Not only it will bring them absolute privacy, it might even help Jimin to be less nervous with Taeyeon right in front of her.

Even when the two are promoting in the same group, they have never really talked more than the usual greetings. The age and generation gap between the two explains pretty much why they are distant in a good way. But to have Taeyeon caught her red-handed in masturbation, and followed by sex, this might just be the two things you need to instantly grow close.

Taeyeon leans in as she captures Jimin's lips, starting off with a slow kiss to set the pace. Jimin seems inexperienced, so Taeyeon takes it slow as she doesn't want to possibly have the younger feel rushed in any sort. Somehow she just naturally triggers the more caring side of hers.

She sucks on Jimin's tongue and caresses her arm, streaming down her sleeve and finally meets her hand at the end. They loosely interlock their fingers, with Taeyeon tilting her head as she slightly deepens the kiss, earning a small pant from the younger.

"Tell me if you want to slow down or stop," Taeyeon whispers, giving Jimin her option to execute even though she has told herself to take it slow for the lady. If that makes her feel safe, of course. Taeyeon never wants to ruin someone's experience just to fulfil hers, it only makes sense to her if the sex pleasures both of them.

Jimin nods as an acknowledgement to her words, though she doesn't find the need to do so when Taeyeon is being gentle with her. She has never done this before yet she somehow knows, feeling lighter as Taeyeon's other hand brushes her hair, combing it and holds the back of her head to pull her closer. She finally finds her own pace as she responds to the kiss, teasing Taeyeon's wet muscle and brushes her tip across her lips.

When they pull away, Jimin is smiling. Taeyeon finds that a good sign and moves on, pushing up her crop top and sports bra to reveal the snow-white within. The lights are dim, but Taeyeon could probably picture it as her hands cup over the breasts, kneading it with her fingers lightly pinching the mounds, getting it hard in a few teases.

The younger lets out an airy moan, leaning her head against the wall while Taeyeon plays with her breasts. She gasps when she feels something warm against her mound, looking down to see a furry head leaning down in front of her tits, twirling her tongue along with the nipples and flicking across it. They send slight electricity up to her while she shudders, finding herself enjoying the whole situation and perhaps, a late realization of how she is actually having sex with Taeyeon, the senior she has always looked up to.

She moans into the kiss when Taeyeon returns to her lips, moving south as she showers kisses down her body, inhaling the exclusive scent of the mix of her body shampoo and sweat. She doesn't smell strong with sweat, yet Taeyeon finds it a small turn on to have a surprise like so during their practice day.

Jimin lets out a small hum when Taeyeon slowly arrives at her garden, spreading her legs open. She sucks her fingers to coat it with saliva first, before reaching down to coat it with Jimin's juices. Jimin purses her lips as she watches Taeyeon's movements, moans when her digits slowly insert her.

Her fingers squeeze through her well-lubricated walls, pressing against her nerves delicately as the sparks arise in her. With the dim lights outlining her side profile, Taeyeon could see how her eyes fall shut, lips slightly parted as she pants softly, mixed with tiny groans as Taeyeon pushes further. She can't help but observe her closely, leaning in and licks her beautiful neck, smirking when Jimin tilts her head to give her access.

The practice room is filled with their pants and moans soon when Jimin signals silently wanting Taeyeon's cock, with Taeyeon slowly pushing herself in. Jimin tolerates the discomfort better than Taeyeon thought, as she buries all of herself in before staying still to let the younger get used to the size. She caresses her stomach, planting kisses all over her skin in hopes of soothing her. The pulsation recurring between the two sends shivers down their spines, until Taeyeon starts to move slowly once Jimin gives her the green light.

With proper adaption, Jimin feels better as Taeyeon pounds inside her, holding back her moans to keep their action secretive. But with that huge cock inside her, it gets a little harder to control herself when she wants to release that pent up frustration. She pulls Taeyeon down, to have her seal her lips so that she moans into the kiss while having the monster ram inside her.

Taeyeon picks up her pace gradually, muffling all Jimin's delicious sounds in their kiss as their tongues tangle against each other, having an intimate taste of each other. The pleasure rises as Taeyeon goes faster, groaning when Jimin squeezes against her tightly and at her final release, Taeyeon also releases her load onto Jimin's stomach.

"Unnie..." Jimin moans as she is still touching herself, looking at Taeyeon.

"Yes?" Taeyeon looks down at her with a smile. "Does it feel nice?"

"So nice..." Jimin purses her lips. "Actually, I was masturbating thinking about you."

Taeyeon recalls the soft 'unnie' she heard before coming into the practice room. "Seems like someone is having a crush."

"I do." Jimin chuckles quietly. "But I got what I want."