Chapter Text
The sound of gears turning and water splashing echoed in the air of the gym, the echoes mixed with guns as Miu worked. Her hands have been working tirelessly as she worked on an exercise machine. Swimming burns calories. Running burns calories. Why not find a way to combine the two exercises?
Miu wiped her brow, wearing a leopard print bikini as to not soak her usual clothes but wearing protective gloves still. “Okay, getting the wave pressure correct.” She tapped her chin as she looked around. “Now… where’s a good stooge at?”
As if on cue, she heard the door open from the locker room and saw Asahina dressed in a school swimsuit. She walked by and caught sight of the bombastic blonde leaning on an odd machine filled with water. “Hey Iruma, what’s this thing?”
“Hina, the perfect person to test this bad boy out!” Miu greeted her as she grabbed Hina by the arm and dragged her over.
“Uhh… what’s going on?”
“I’ve decided to perfect the underwater treadmill! And I need you to test it out for me,” Miu explained as she brought Hina to an odd tank of sorts. Sure enough, there was a treadmill at the bottom of said tank, filled with water.
“What is this?” Hina asked, looking around it with a confused look. “It looks like a metal kiddy pool with a treadmill in it.”
“Well, it’s not that. It’s an exercise machine that combines both jogging and swimming! I call it…!” Miu paused for dramatic effect before doing a, ‘ta da’ pose, “The Aquamile!”
“Ooh…!” Aoi said with wide eyes, impressed as Miu had a proud smirk.
“I was gonna call it the ‘Wet Tramp,’ but Kaede smacked me on the head for that name for some reason,” Miu said with a small smirk, as Aoi looked confused at that.
“… I thought this was a treadmill, not a trampoline?” Aoi inquired, as Miu shook her head at that, muttering something about her being too innocent for her own good.
“Never mind. So… mind testing this baby out?” After Aoi gave a nod, Miu helped her get into the tank, though Aoi squeaked as she felt a hand go a certain somewhere. “Wow, you’re toned~!”
“U-Uh, please watch the hands?” Aoi asked with a deep blush on her cheeks, as Miu gave an awkward laugh.
“Sorry… Just impressed. There is no fat on these bones. You’d think with all the donuts you eat, you’d have a little more dump in the trunk, but it feels like they’re really firm,” Miu complimented as Aoi blushed, but could tell she didn’t mean anything offensive by that, unlike Toko’s vulgar comments.
“T-Thanks… First time anyone gave a compliment like that,” Aoi admitted as she got into the water, before shivering as she felt how cold it was.
“Yeah, just put the water in after getting the pumps ready. Just let me know when you want the pressure up on the wave functions,” Miu said as she had a waterproof remote on hand. Aoi gave a nod as she got started on the treadmill, holding onto the rails so as to not fall off of it. To her surprise, the machine performed rather well even though it was submerged.
“Okay, so far so good,” Aoi said to herself as she looked towards Miu and gave a nod to go faster, which she did. And Miu couldn’t help but enjoy the view of the athlete running while the water splashed a bit around her with her movements, trying her best to hide a smirk.
Aoi found the water very comforting on her joints as she ran, even with the pace picking up. She then felt the jets go up, massaging her muscles more. Miu, meanwhile, watched as Aoi kept running. She had already found Aoi attractive before, but now? It was very hard to not notice how truly attractive she was.
“Okay, I think that’s a good test. Wanna dry off?” Miu asked as Aoi climbed out, with Miu coming over and wrapping the tanned girl with a towel, making Aoi squeak a bit in surprise.
“Oh, uh, Miu?” Aoi asked as she felt Miu’s breath on her ear, making her blush more.
“Gotta say… you really showed off in that, Hina,” Miu sighed, wrapping her arms around the upperclasswoman. “I-I mean, I knew you’d be able to demonstrate my greatness incredibly well, but I was impressed with how well you were doing things on it.”
“Well, I mean…” Aoi began, trying to find the right words to tell Miu. She then felt Miu’s finger trace her shoulder.
“Maybe you can come by my workshop later to… finalize some notes?” Miu said in her ear, making the poor swimmer’s ears steam up.
“Uhh… Sure! I guess!” Aoi answered, wrapping the towel tightly around her.
“Then it’s a date!” Miu giggled. Aoi just gave a nod, but a peck on the cheek from Miu caused her to blush as the inventor headed out, swaying her hips to tease her future date more as she hummed and walked away.
“… What just happened?” Aoi asked herself as she went to dry off, maybe even go find a place to cool off.