Manufactured Misfortune/Day1 Gymnastics
"Gymnastics," he said.
"Gymnastics it is then. Partner up and head inside. There you'll find mats scattered around the edge of the gym, just claim one and start your stretches."
The class makes its was to the building, engaged in idle conversation while picking their partners. You and Emily share a look and smile before hooking your arms together at the elbow. If it weren't for the fact that you're related to her you'd probably be receiving dirty looks from the other guys. Not that you can blame them, given Emily's boobs bounce with every step she takes, made even more noticeable by her lack of bra.
Soon everyone enters the gym and move to claim their mat, some running while others, you and Em included, take their time. You walk all the way to a mat near the back of the gym, and looking around reveals that one, you two are the only boy-girl partners and two, only guys take up the mats on either side. You expect them all to be sneaking glances at your sister, but surprisingly they aren't paying you any mind. You turn to see what caught their eyes and your mouth nearly falls open.
The last of the heat wave must've gotten to Ms. June, otherwise what explanation would she have for stripping off her tracksuit to wear just the sports bra and bike shorts underneath, right in the middle of the gym no less. You cast your eyes around the room and sure enough all the boys are ogling her while the girls are either glaring at her or staring slack-jawed themselves.
A smack on your arm startles you enough to tear your eyes away and shoot your sister a questioning look.
"We have stretches to do, remember?"
As she says that she folds her arms across her chest and cocks her hip to the side, very clearly irritated with your staring.
"Uh, right, sorry."
"Hmm."
She barely acknowledges you as she starts stretching her arms in various ways that cause her modest bust to strain against her shirt. You follow suit and can't help but chuckle to yourself. You and Emily have always had a strong attachment to each other, so she tended to get a little jealous whenever another girl catches your eye. However, as she closed her eyes and stretched her arms out behind her, giving you a clear as day view of her nipples through her t-shirt, you find yourself wondering if that wasn't just a convenient excuse to have your attention.
Several minutes pass as everyone goes through the various stretches. Once that's done Ms. June starts having the class preform various gymnastics acts, starting with basics like forward tumbles and moving up to cartwheels and the like. She moved about the room checking to see if anyone needed assistance, but with the regular exercise you and Emily do Ms. June only gives the occasional glace, knowing you'll both be fine. That doesn't mean your attempt to do the splits was any less difficult, but it was certainly easier than all the other guys, whose strain expression gave you two a good laugh. You've also noticed that, despite your sister's attire, the guys were ignoring her completely to watch Ms. June instead. It was like she wasn't even there.
Soon you reached the final act of the day: handstands.
The instructions are simple; go into a handstand first leaning on the wall, then try to push off the wall while maintaining position, and if you can try walking forward on your hands, all while your partner spots you. You opt to go first, lowering your head down before getting into position and lifting your feet above you, resting them on the wall. From your upside down position you see Ms. June looking your way for a moment before nodding to herself and moving on to check the others. You manage to briefly hold your pose without the wall's support, but your shirt, which you had tucked in, comes lose and falls in front of your face. With no other choice you lower yourself back down with Emily's help and fix your shirt.
"Crap, I actually had it there for a second."
"Don't worry, just watch me and you might learn a few things!"
Emily gives you a cheeky smile as you get up. It was true though, she did have a better sense of balance than you when it came to handstands. You watch as she closes her eyes and takes a deep breath, practically launching herself into position, upside down against the wall in an instant. She still had her eyes closed to keep focus, which is probably why she didn't notice what was about to happen.
It would seem that, unlike you, she didn't tuck in her shirt and you watch as the hem slowly peels down her stomach, rapidly picking up speed as it slipped down (up?) her torso, over her face, and eventually pooling itself around her hands on the floor. Your mouth fell open again and your eyes nearly bulged from your skull. In an instant Emily had been rendered topless before your eyes, her pert little breasts and quite possibly erect nipples pointed straight at you.
You stare for a moment more when it occurs to you just where you both are. You spin your head around left and right, worried someone might see you sister's bare tits. Even with what you and X have planned for Addison you have no intention of exposing your own sister, at least not for the pleasure of others. Thankfully it seems things are fine for now as nobody noticed, the boys to focused on Ms. June, the girls too far away to pay you any attention, and Ms. June focusing on other students. Still, you'd better act fast, just in case.
You turn back to Emily only to watch in disbelief as she "steps" forward, lifting one hand straight from her t-shirt before repeating the motion with the other. Not only was she now topless, she wasn't even by her shirt anymore. She moves forward a little more before stopping and up-righting herself, turning to you with a proud smile. Seeing your, admittedly beautiful, sister give you such a bright smile while completely topless, appearing completely causal about it sends a sharp spike of desire, affection, lust, and who knows what else through your veins.
"So, learn anything?" she asks while planting her hands on her hips.
That snaps you back to attention and you act fast, covering the distance between you and getting so close you're practically right up against her. Before she can respond you lean down and whisper in her ear.
"Act casual, look down, and what ever you do don't make a sound."
She does as you say and even though you aren't actually touching her you could almost feel her stiffen as she realized her topless state.
"Against the wall, hurry!"
Looking over her shoulder Emily spots her shirt and quickly covers her breasts with her hands as she moves to get. She walks normally so as not to draw attention, and you do a quick survey of the room to confirm that nobody was watching as she put on her top. A moment later she walked backed to you, reclothed and her arms held tightly across her chest. She's about to speak when Ms. June beats her too it.
"Alright everyone, that does it for today. Since you're my last class and this has been a good day I'll let you go early. Everyone fold up your mats and carry them into the back, you know where they go."
It seems Emily got covered not a moment too soon. You turn to her, about to ask what she was going to say, but she shook her head and instead gestured to the mat. You fold it up and the two of you carry it to the back with everyone else. As luck (or lack thereof) would have it you were the last ones to put their mat away and were left in the gym alone while everyone went to change and Ms. June went to her office.
"Ron."
You're about to reply when Emily suddenly wraps her arms around you, pressing her body up to yours. You're taken by surprise at first but soon wrap your arms around her waist, holding her close.
"Thanks Ron, I don't even want to think of what would've happened if you weren't here."
"Hey, anything for you Em."
You hold each other for a second more before pulling away, but not before Emily stands on her toes to give you a peck on the cheek. As she leans back down she gives you a warm smile.
"See you at home."
She turns and you watch her walk for the locker rooms, positive she was swaying her hips just a little more than usual, before walking to the much closer boys locker room. You take a quick rise in the showers and change back into your uniform. Leaving the changing area you walk to exit to head for study hall, your last period of the day, and where you can finally update X on how things went with Addison.
Unless she already knows somehow, which wouldn't surprise you.
Does anything of note happen on the way to study hall?