Inspired by Sana's ALO campaign, this is if she visited again the wellness club in South Korea to try their product more on her free time. Turns out, that's not the offer that awaits because to her surprise, there's only one person inside the gym when she arrived; a guy who is coincidentally a ONCE and most especially, someone who stans her.

Sana is in good mood today because she has no scheduled projects to do. A busy idol nowadays, she could barely have enough rest along with other TWICE members. That’s why when she learned that this day will be her free time, she wanted to use it properly, and going to the gym is one of the ideas that came into her mind.
She decided to visit the location of ALO Wellness Club, her recent endorsement here in South Korea. She was chosen as their feature model for their advertisement not only because she is a famous celebrity but because of her perfectly fitted body. Her face must be around on the streets now for the brand, she suppose since she has finished shooting for them weeks ago.
Entering the building without any further identifications needed, just with her face card is enough for her to guarantee a VIP pass inside. Sana saw her face on their monitors, and she smiled at the small help she can provide for the brand to be known more for people who are interested in improving their health. The receptionist kindly asked for her signature, and Sana immediately obliged for her beloved ONCE.
She went to their gym, and to her surprise there’s only one person inside. Noticing it’s a guy, running at the treadmill, Sana just minded her own business. It would’ve been better if she’s alone though to avoid awkwardness being in a same room with a stranger, and an opposite gender as well.
The guy seems busy at his workout, so Sana did the same to prevent herself glancing at the guy that might cause a misinterpretation. She removed her shirt, revealing her prepared ALO sponsored gray and white colored gym attire. Choosing a spot, Sana began her warm-up.
Few minutes have passed, Sana was done on her dumbbells. She was about to approach a next exercise equipment when she halted, realizing that the guy is also heading in the same direction as her. They both looked at the same thing they are aiming to take, and they were shocked in embarrassment.
“Oh, you’re going to use it too?” You asked, pointing at her.
“Y-yes.”
“I’m sorry, I didn’t saw you. You can go first.” You said, nodding as you offer her the vacancy.
“Oh no, it’s fine. You go ahead, I think you need it more.”
“I’m good, there’s others here that can help my triceps and chest anyway.” You chuckled. Sana smiled at his response. Strangely, the awkwardness shrank when she caught a glimpse of his soft personality.
“Are you sure? Or you’re just being a gentleman right now?” She grinned, crossing her arms.
“Both.”
“I appreciate that, but I tell you, it’s completely fine with me.”
“Don’t fight anymore, just take it.” You cut the alternate passes of permission between each other to avoid wasting more time.
“I-it’s my first time using this!” She admitted, her voice raised a bit which got you slightly. Sana saw how surprised you were, she covered her face in shame. “Ahh, it’s so embarrassing. I don’t wanna say it but I had to because you don’t want to take it right away!”
“Ohhh so is that so.” You were fascinated. Sana tilted her head away, but it’s obvious she’s sulking with the curves of her pout on her side profile, which was so cute in your opinion. “Are you shy because you don’t know how to use this?”
“I-I know but I don’t know if its right.”
“Allow me to help you then.” Sana shook her head in an instant.
“No, please I don’t want to disturb you because I’m acting like a beginner right now.”
“Sana, let me do it.” Sana was taken aback when you called her name straightforward. “Oh, my bad for calling your name. I mean, I know you but we’re not… that close so, sorry I just want you to stop apologizing and let me tell you that I’m willing.” She stared at you, unmoved. Not only is that your kindness flutters her but somehow observing your looks more had her lost in trance.
“Fine, I accept. I mean, it’s a shame for me more to not let a gentleman like you to assist me.” Sana lowered her voice, still in sulking manner.
“I’m YN, by the way.”
“Nice to meet you, YN.” She smiled and shook your hands gently. “To make this fair, I’ll teach you some basic yoga in return. Deal?”
“Yoga? Sure, why not?” You shrugged and both of you giggled at the positive answer.
After Sana’s entire workout duration ended, you two proceeded on the yoga session just like what she promised. You made her aware that she doesn’t want you to be expected that you’re that flexible. Thankfully, Sana just said that you’ll get used to it if you continue to train using this method more.
As your instructor, Sana is facing you to demonstrate the poses you have to imitate to join with her flow of lecture. The first thing she did is what she called a downward facing where she had to stand her both legs up while her body is angled down with her hands planted on the floor as another support, forming like a slide in a playground.
It’s too hard to endure the sight of Sana’s ass shape through those leggings she’s wearing. As she discusses the benefits and importance of this form, you’re struggling to focus on her ass and what she’s saying. You tried not to get distracted, and so you tried to pay more attention seriously to what she’s doing.
The next thing she did was a seated wide angle where she has to spread her legs in maximum limit and then turn her body on either sideways by trying to have her fingertips touch her toes. It’s impressive how she can expand her body like that. You couldn’t do how flexible she’s doing it, and Sana finds it hilarious how you’re complaining and aching at trying to spread your limbs more.
Proceeding with the third is that she positioned like a cobra with a shade of lunge posture. She laid half of her front figure on the mat while she arched her back to push the front of her top half more. Her head bent to the back, exposing her neck and be the standout along with her chest.
Your eyes instinctively directed through her sports bra, where the cleavage of her average sized bust gets pushed more the further she arches her body. She doesn’t know that her student isn’t following her properly anymore because of how hot she is. Cursing yourself to stop or else she might find out and get doomed, you forced yourself to lean your sight away from her alluring features.
“And that’s how you do it.” Sana made herself comfortable, switching back to an indian sitting posture as the tutorial progresses. You faked an “ahh” to make her believe you did followed all of what she instructed.
“How’s the experience so far?”
“Pretty good, challenging but maybe worth the try.”
“It’s fun. I know you’re having fun right now, maybe it’ll convince you to try this more.”
“I think I will.” You nodded and smiled. The curve on her lips then shifted to the edge.
“Silly of you, I’m not talking about that only actually.”
You got confused. “What do you mean?”
“You also enjoyed the view when you were checking me out earlier, aren’t you?”
That’s exactly what you were talking about. Sana has caught you acting in a weird behavior. You’re so done, you became stiff and nervous right when she confronted you that.”
“Uhm…” You were speechless, the internal panic giving you a hard time to process words to come up as a reason to her. “S-sorry, I was l-listening but you- I…”
Sana then chuckled, amused at how your face starting to get red. “Hey, don’t worry too much. It’s fine, I know it can’t be helped.” You remained silent, you’re baffled why she’s just okay with this.”
“I’m aware I’m attractive, This must be normal for me when I chose to be known by many and gain much attention.” She nodded. “And oh, I saw you there on the mirror looking at my ass, that’s why.” She looked at the huge mirrors on the wall. You wanted to facepalm so hard.
“I’m really sorry, Sana. I just- okay you’re beautiful.” You shut your eyes, shame eating you alive. Sana raised her eyebrow on that. “And y-you’re my bias in TWICE. I really don’t mean to check out on you, I admit you are hot but right when I saw you here on the gym I’m just in awe right now that you’re literally right here close to me when all I thought is that I could only see you through concerts and your contents.” You sheepishly confessed, lowering your head to avoid Sana’s gaze.
That made you unable to witness Sana’s change of expression from fluttered to something dangerously mischievous. “So not only a ONCE but a fan of mine too, huh.” She smirked. Atleast she doesn't know that your workout playlist also includes their songs, and that you were lifting a barbell with What Is Love? on your ears earlier.
“Lucky for you to meet me in person then.” You nodded. “And lucky for me too, I encountered a fan of mine who is just exactly as hot as I could imagine for a type of man I want.”
She cupped your chin below and forced you to look at her. “We’re the only ones here, right?
“Yeah?”
“Sauna’s my next. Wanna go with me?” You didn’t answer quickly. Sana smiled, it’s understandable for her anyway. “I get it, this is gonna be stupid but… I’m enjoying your company right now though.”
She leaned closer beside your face, you can smell how magnificent she is with her favorite rich perfume and shampoo through the strands of her hair neat at your nose. “You don’t want your bias to be lonely, right?” She whispered soothingly. You gulped, agreeing to her.
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