An advanced yoga class

"What?" Mackenzie said, confused. "Yoga again? That can't be right. I already did two yoga classes this morning!"

Mackenzie made her way around the reception desk to stand next to Ali, who was sitting in a chair. She leaned down, looking at the computer.

"That's what it says here..." Ali said, pointing at the screen. "Wait, this says it was edited just a few minutes ago by... Stefan!"

"Ugh, of course!" Mackenzie groaned, slamming a frustrated fist onto the desk. This sudden movement sent her borrowed tank top slipping off her shoulder, baring her right breast to the reception area.

"Oops! Um, Mackenzie-" Ali said, trying to politely point out the exposed pink nipple at eye level a few inches away.

"He keeps trying to coerce me into doing these naked yoga classes!" Mackenzie interrupted, oblivious to her visible boob. She rose back to a standing position, inadvertently letting everyone in the reception area see half her exposed chest. "I'm gonna go give him a piece of my mind!"

"Wait, WAIT!" Ali called out.

But Mackenzie was barely listening as she rounded the reception desk, still grumbling about Stefan. Her oversized pants slipped slightly lower on her hips, even despite the secured drawstring.

"Can't believe him..." she muttered to herself. She continued down the hallway, blushing as she spoke aloud. "I mean, yeah, leading those two earlier classes naked went fine enough, I guess... But that doesn't mean I want to do that, like, permanently!"

"Mackenzie hold on!" Ali called, having risen from her desk and hurried after her. "Your shirt!"

"Huh?" Mackenzie stopped in place, finally noticing her friend chasing her down.

She turned back to face Ali, and in the process her tank top slipped off her other shoulder. The comically large shirt instantly slid down her torso completely, fully exposing her voluptuous chest and landing on her hips. The extra weight was enough to send the giant sweatpants slipping down Mackenzie's lower half, and both garments gently plopped to the floor at her feet.

"Ah!" Mackenzie gasped, suddenly finding herself nude in the hallway again. She crouched down and began trying to pull her borrowed clothes up into place again. It only took a few moments, but Mackenzie now felt like her clothes were holding on even more tenuously than before.

"I was trying to warn you about your shirt, but it looks like you noticed," Ali said with a slight giggle.

Mackenzie blushed a bit more deeply as she tried to double knot the sweatpants' drawstring.

"Oh but also!" Ali continued, "I wanted to warn you; I don't know if you have time to talk to Stefan. That yoga class he assigned to you starts at 10:20!"

"What?!" Mackenzie looked around for a clock, but didn't see one nearby. "What time is it now?"

"When I got up from my desk it was 10:18," Ali replied. "So probably about 10:19 right now."

"Rrrrrgggh!" Mackenzie wordlessly grumbled, turning around to try and get to the class on time.

"Good luck!" Ali called after her before heading back towards the reception desk.

Mackenzie entered room 109 at 10:20 on the dot, and was a little nervous to see roughly twenty people waiting for her. Their more advanced yoga classes were typically smaller, and the redhead had been hoping for as few people as possible, give how tenuous her outfit was. But, as she should have guessed, today's class was pretty much full! And even worse, there were a few men present. Most of their advanced yoga classes were co-ed, given their smaller sizes, but Mackenzie had silently been hoping for another women only class.

"O-okay!" she called, quieting down the murmurs of the waiting men and women. "Let's get started!"

Mackenzie made her way to the front of the room, the wall with floor to ceiling mirrors, and felt everyone's attention squarely on her. She couldn't help but nervously fidget with her top and pants. She knew that even the slightest movement might send them slipping off her body entirely.

"My name's Mackenzie, and I'll be, uh, leading today's class! Please excuse my lack of proper attire, but I had a few, um, clothing difficulties earlier, so I'm trying to make do with what I've got!" she spoke with a chuckle.

The redhead had hoped that her joke might've diffused the tension a bit, and it did get a few chuckles in reply. But Mackenzie still felt incredibly nervous about leading the class in what was a wardrobe malfunction waiting to happen. She glanced up at the clock, which read 10:21. She had to make it through 49 minutes dressed like this. Could she do it?

"Well, let's jump right in then!" she said. "I'll start us off with the Humble Flamingo pose. For those unfamiliar, just follow what I do."

Mackenzie placed one foot forward and began slowly bending forward at the waist. She hurriedly placed her hands on her hips when she felt her pants starting to slip, gulping nervously. But then, she continued lowering her torso even further, angling her head down towards the ground. And that sent her tank top slipping up her torso, baring her stomach. Mackenzie used one of her hands to try and hold the shirt in place, and managed to halt it before her breasts spilled into view.

But now Mackenzie was faced with a predicament. The rest of the pose required her placing her hands on the ground for support. And she knew that letting go of either garment would likely result in them immediately slipping off her body. Mackenzie cursed her bad luck. She knew there was no realistic way she could perform the necessary poses without these oversized clothes slipping off, but she hadn't expected to face this critical point barely 30 seconds into the class!

Reluctantly, the yoga instructor released the hold on her sweatpants to place the palm on the floor. Immediately, they slid down her legs and pooled around her ankles. No one could see it directly, but she was sure her ass was nicely presented to everyone in the mirror behind her. Next, she released her grip on the tank top and placed that palm on the floor too. It also wasted no time slipping down her torso, over her head, and pooling around her wrists. Mackenzie was functionally naked in front of a yoga class once again, and in record time! To complete the pose, she carefully lifted one foot into the air, out of her pants, and perfectly demonstrating the pose.

Mackenzie sighed. She was sick of worrying about her clothes slipping off. If she kept this up, she'd spend the entire class fussing and pulling the top and pants back into place, and she'd still wind up half or even mostly exposed for them all to see! Maybe... it would be easier to just give in to the obvious solution. She continued holding the pose for a bit longer, but she'd reached a decision.