A little good. A little... less than good.

When Mason walked out of the changing room he held his yoga mat in front of his crotch. He tried to be nonchalant about it, but the pink in his cheeks probably gave the game away. Or at least it would have if anyone was paying attention. But at the moment the only other person around was Viv, whose eyes were glued to her phone.

She did apparently see him out of the corner of her eyes though. Without looking up, she casually waved him over. Viv was lounging on her mat in what he presumed would be the back of the class. God, he hoped that it would be the back of the class.

Not seeing a reason to fight the inevitable, Mason unrolled his mat next to hers and sat down. He wasn't really sure what to do with his key. So he just sort of awkwardly laid it on the ground next to him.

As he sat there (cross-legged in an attempt to stretch some fabric away from the obvious bulge in his pants) he realized that he probably should have brought his phone with him as well. There were still more than a few minutes left before class, and now Mason had nothing to do but sit there and try not to stare at people as they came in.

Well, that and to try and ignore the prickling feeling creeping up and down his legs.

The class, to put it bluntly, was full of moms. Some were younger moms and some were older. Most were fairly pretty. But all of them had a specific energy he recognized from Tegan's circle of friends. A combination of sunshine smiles and steel knives. The snippets of overheard conversations all consisted of underplayed boasts about children or spouses. Entries in a casual (or cutthroat) game of one-upmanship that wouldn't end until someone's kid became emperor of the known and unknown universe.

At least most of them were ignoring him. They would throw a curious glance his way, before returning to the humble bragging.

Which was good app-wise. He didn't need another zero he might never see again. But Mason was really feeling awkward as he sat both still and silent.

"Should I, um, stretch or something?" He whispered to his sister.

"Don't stretch cold muscles," Viv said shortly. For a second she kept tapping on her phone. But after a moment the silence between them grew just a little too heavy. So she set down her phone with a huff and actually looked at him.

"Dude, you need to relax," She said quietly. "You're going to pull something."

"You know telling someone to relax doesn't actually make it easier to relax," Mason said. His voice came out a little snippier than he meant. He leaned away from her, ready for his sister to blow up at him. But that didn't happen. Instead, she placed a hand on his shoulder and shot him a toothy, fervid grin.

"You know this actually can be fun. Get a good stretch in. Get some endorphins going. Tone your muscles a bit." Viv listed off his potential benefits with honest enthusiasm. At least until her smile gained an edge and she got a familiar glint in her eyes. "Get the blood pumping before your little date tonight."

Mason's blood ran cold.

"H-How do you know about that?" He spluttered out on instinct. How could his sister possibly know about that? And how could she be so calm about it? And how…

But his panic was cut off by his big sister laughing so hard she had to cover her mouth.

"Holy shit, the look on your face. Come on llorón, you're not that sneaky." Viv drew herself up as high as possible. She lifted her elbows to look a bit like broad shoulders and dropped her voice into a crude baritone. "Oh Mother, you must understand. My childhood friend (who I'm obviously in love with) and I are just going to this dinner event we have never mentioned until just this moment. Please ignore the fact that we have never wanted to go to anything like this before. This is not suspicious at all."

"I guess when you put it that way," Mason said. He tried to sound a little awkward about being caught. But in reality, a huge wave of relief washed over him. Of course, she was talking about Yumi. After all, he had a date with her tonight too.

And that still felt weird to think about.

"Don't worry Mamita didn't figure it out. She's too used to you being a boy scout to notice anything." Viv playfully rolled her eyes. "Just remember to not bend Yumi over the table in front of everyone. I still have a bet to win."

Before Mason could respond to that (beyond the image flashing through his mind) another voice broke into the conversation.

"All right everyone," Ivy announced as she sat down on a mat of her own. "I think just about everybody’s here."

That was the signal the moms had been waiting for. They sat down cross-legged with a few feet between each other. Though he still noticed that they formed little clusters of two or three.

"So before we get started you may have noticed that we have a new face with us today." Ivy gestured back at him. All at once a dozen or so heads swiveled back to look at him.

"This is my little brother, Mason. He's giving yoga a shot," Viv introduced him with a bright smile. He also tried to smile, but he was a lot more self-conscious. Not helped by the stupid little wave he gave them before he could stop himself.

There was a second of mixed expressions. Some of the women clearly had a little "ah-ha" moment. Some just looked more confused, either because they didn't look like siblings or they had a hard time imagining him as a "little" anything. But that passed quickly and they offered him a set of welcoming smiles. A few even returned his little wave.

"All righty then. Let's get started," Ivy said. Her chipper voice changed as she spoke. Her words slowed. They started to flow instead of bouncing. "Since it's a day that ends in Y, I'll assume everyone has had plenty to deal with. So let's take a moment to center before we begin."

"Now close your eyes."

Mason did as she said, letting his eyes fall shut. He focused on her voice. It seemed to hold his hand, guiding him along. He breathed in. And out. And in again. Slowly. Deeply. His muscles uncoiled. The tension in the cords dissipated, starting in his legs and slowly working its way up. And his train of thought began to slow. Until, eventually, it was just a sense of tranquility.

And it was wonderful. The chance to truly relax. He had a lot on his mind over the last few days. And the chance to let go and take a moment to himself was something he didn't even realize he needed until now. Even though it was just a few minutes.

"Alright, everyone. Open your eyes," Ivy said gently. When Mason opened his eyes he saw a warm smile on her face. "Let's begin."

And so they did. It started with what she called Lotus Position. It wasn't that different from how he was already sitting. But it was enough to make him realize he was in for an uphill battle. Ivy gave a quick demonstration of the form before she started walking through the class. Every once in a while, she would stop and make some small adjustments to one of her students.

But Viv was almost constantly fussing over Mason. She helped him cross his legs properly. Straightened his back. Squared his shoulders. Lifted his chin. Extended his arms. He apparently couldn't do a single part of it quite right. His sister was more or less posing him by hand. And every time she repositioned one part of his body another popped out of whack.

Mason was ready for teasing, snide comments, and little huffs of frustration. But that didn't come. Instead, she kept a level head. There were gentle words of encouragement, calm reminders to focus on his muscles and their positions, and assurances that no one was expected to get it perfectly the first time. All delivered in a friendly (dare he say sisterly) tone.

And best of all was the bright, proud smile that appeared on her face when he finally managed to hold himself correctly.

Which was exactly what Mason needed to get through this.

Right as he managed to finagle himself into position, Ivy moved them on to the next pose. They had names like Triangle, Child's Pose, both Downward and Upward Dog, and a pair of Warrior Poses. There was even a Corpse Pose, which Mason found a little macabre. But he didn't even bother trying to memorize their names. The poses themselves soaked up his focus like dry sponges. And the urge to scratch his legs wasn’t helping.

While a little exhausting, this was a blessing in disguise. Because whenever his eyes drifted around the room Mason was reminded that he was surrounded by pretty women in tight clothes. Though none of the students really held a candle to their teacher. Her outfit showed off her fit and curvy body. And even the basic poses she demonstrated made it very clear just how flexible she was. I made him grateful that all his blood was going to his arms and legs as opposed to certain other extremities.

That dilemma only lasted a few poses though. After a few poses it was clear Mason's glasses weren't going to stay on his face. Taking them off was a little bittersweet, but he decided it was for the best.

At least until he found himself with a much more awkward problem.

Maybe it was his blurred vision forcing him to focus on his other senses. Maybe it was the blood rushing to his skin to try and cool his core. Or maybe it was all the talk of focusing on his body. But he was very aware of his sister's near presence.

Viv's hands kept finding their way around his body. They would alight on his shoulders or trace down his spine. At least when they weren't roaming his chest and stomach when she needed to lean him back. Though the most mortifying was when she got a firm grip on his hips or thighs. Thankfully the exertion meant his face was already red.

Of course, it wouldn't have been nearly as awkward if it didn't feel so damn good. Everywhere Viv touched she left behind a ghostly tingle. His skin was so sensitive he could feel her body hovering next to his. And whenever she brushed against him, Mason would shiver. The dangerous part was that, without his glasses, he could almost forget it was his sister. He could imagine it was any other beautiful, sporty lady running her hands all over him.

Viv wouldn't have the same advantage though. She would be fully aware that it was her little brother she was working on. But it was just work. She was no doubt handling things a hell of a lot easier than he was.

"Next we'll move on to Happy Baby," Ivy said calmly.

Mason did his best to ignore the feeling that she was just making names up. Instead, he focused on following Viv's instructions. It started easy enough, he just had to lay on his back. But there was an odd tension in the air as he did.

And it didn't take long to figure out why. He had to lift his legs, bend his knees, and grab the outside of his feet. To put it bluntly, it wasn't a position made for modesty. Any woman downwind was privy to quite the view. At least, that was his impression based on how snug things suddenly felt around his groin. He hoped the spandex was better at hiding his dick than it was at hiding Viv’s or Ivy’s ass.

But he put that out of his mind. Forcefully. Those were not helpful mental images at the moment.

At least everyone was in the position, too busy staring at the ceiling to notice anything lewdly pressing against the tight spandex of his pants. And Mason needed to focus on this one. He was supposed to be tucking his knees into his armpits, but just getting them past his ribs made a lot of ligaments and tendons screech in protest.

"Whoa, whoa, whoa llorón. Don't just yank your legs into place," Viv chided him quietly and quickly. "Here. Just relax your arms. Let me take over."

Mason's arms instantly dropped to his side. As if they heard her before his ears. But Viv swooped in to catch his legs before they fell too.

His heart, which was already putting in some extra work, suddenly felt like it might explode. Viv was suddenly straddling his head. Ankles for earmuffs. And he was left staring up at her ass. Even blurred there was no denying how amazing it was. Part of Mason knew he should shut his eyes. But another part (the more Lilithian part) pointed out that it was already out of focus. Surely that was good enough?

Then he snapped his legs together. It suddenly occurred to him that his sister did not actually need glasses. But Mason felt an iron grip holding his feet in place.

"No," Viv suddenly said, her tone just a touch too harsh. "You have to keep your legs apart."

Mason could practically feel his sister's gaze between his legs. Though he decided that had to all be in his head. After all, it wasn't like he had used a magical app to give her incestuous desires. If he had done that then it wouldn't be at all surprising if she was ogling his dick through his yoga pants.

At least he wasn't hard. Though, the blurry image of her toned glutes was doing its best to change that.

"Just try and relax your hips. Let me handle the movement."

He did his best to follow her instructions. But he was having trouble focusing. Viv had to bend her knees a bit to get proper leverage. The few inches she lowered put her toned glutes into that much more focus. He hardly noticed the way she rocked his hips from side to side. And didn't even hear her explanation about the ways it would improve his flexibility and straighten out his spine.

Mason just kept admiring the way her pants clung to the curves of her ass. At least until he felt a stirring in his own pants. Then he screwed his eyes shut as tightly as he could and did his best to think of something, anything, else. Unfortunately, that ended up being Ivy. Her soothing voice made the lovely instructor's presence clear in his mind. And from there it was only a hop, skip, and jump to Ms. Bailey. And their date in a few hours.

Neither of which did much to calm him down. But at least that was the last pose for the day. All that was left was some static stretches to cool down.

As he stood up he grabbed his glasses. His face caught on fire as soon as he did. His dick was now clearly visible through his pants. And it wasn't even half hard yet. If something got him the rest of the way there, it would tear itself free. He sent a sidelong glance Viv's way. She wasn't paying him any attention anymore. Her brown eyes were staring forward at nothing in particular as she stretched her shoulders.

His sister was either very professional or completely oblivious. And either way, it only made him feel guiltier for checking her out.

That's probably why he bolted back to the changing room as soon as the class was done. The silence and solitude would do him a world of good. Mason was suddenly very aware of how sweaty and sore he was. He was left with a whole new respect for yoga. And Viv's athletic prowess.

Though, he had gotten several good looks at her "prowess" over the last few days.

He shook his head. That was enough of that. He didn't have time to daydream about his sister. He needed to get a quick shower and get home. After all, he had to get his homework done before his date.

Which was an odd thought but it spurred him on. Mason pulled off his workout clothes. It felt weird getting undressed in a place like that. But he reminded himself that he had seen exactly zero men since he got to Bliss & Balance. This might as well be a private room. And the relief that raced up his legs as his hair was able to spring back to its natural position was amazing.

Still, he wouldn't hate a curtain on the shower. But he wouldn't be in there for long. He didn't think to bring body wash or anything. So all he could do was rinse himself off. But that would hopefully be enough to get him home.

It took some fiddling to get the water just right. But once he did he was rewarded with several warm rivulets running over his body. The heat seeped into his skin and soothed his tender muscles. It was worth the way the steam fogged up his glasses.

He let out a long, gracious sigh. Then he almost jumped out of his skin as he let out a high-pitched meep that was totally at odds with his massive frame.

"Oh, I'm sorry. I forgot you'd be in here." Ivy's peppy voice rang out behind him. Maybe it was just his imagination, but she didn't sound that sorry to him.

"Wh-What are you doing in here?" He asked, his voice a few octaves higher than normal. Mason clapped one hand over his butt and another over his junk. But neither felt really covered.

"Well we only have the one shower for employees, and Viv's in there," She explained nonchalantly. "Since we don't exactly have a lot of male students, I just use this one when it's occupied."

"Uhh…" He supposed that made some sense. What Mason couldn't figure out was why she was explaining that instead of leaving.

Then again. Maybe she did leave. He didn't hear her come in. So it wouldn't be crazy if he didn't hear her leave either. But he still took a second. He held his breath and pricked his ears.

For a moment all he could hear was the shower head spraying him. But then there was a small squeak of metal on metal followed by a second hiss of a gratified sigh.

"That hits the spot," Ivy sighed. "There really isn't much better than a hot shower after a good workout."

Mason turned his head on instinct. As bewildered as he was, that was all he had left. And he instantly kicked himself for doing so. (Metaphorically anyway.)

Because he wasn't sure he would be able to look away anytime soon.

There she was, standing beneath the stream of water without a stitch of clothing. Well, besides the clear shower cap on her head. But that wasn't covering anything he was staring at. With her back to him, his eyes were drawn lower. The rivulets of water guided his eyes down. They trickled over her well-defined traps and deltoids. Her spine formed a moat that funneled it lower still until it was running over the hills and valley of her ass.

It was… incredible. Wide, round, and firm, it was a perfectly sculpted work of alluring art. Two brown glutes that glistened in the water and connected elegant legs with her trim torso. He couldn’t look away. Not even when she glanced back over her shoulder.

“Well if it isn’t The Lance of Long-Guyness,” Ivy teased, her eyes twinkling and her gaze suspiciously low.

Mason had been so taken with the sight that he hadn’t realized that his hands had dropped to his sides. He also hadn’t noticed how outrageously hard he had gotten at the sight. Or maybe he was just already getting used to the new super erections the app was giving him. Either way, his face, already a little warm from the shower, was now on fire. And it only got worse when he tried to cover up. “Tried” being the operative word.

“Oh, don’t mind me. I walked into your shower after all.” Her voice was totally brazen. Or maybe that was just the way she turned to look at him. Her hands were on her hips with everything laid bare. From the heart-shaped patch of hair between her legs (Ah, she was a brunette underneath the dye) to the little silver bars in her nipples.

Ivy followed his lead. Her own blue eyes flicked up and down his body. The smile on her face grew ever so slightly, going from a little playful to positively kittenish.

"You know now that I think about it, there are actually one or two more things that are even more pleasurable than a hot shower. Especially after a workout."

Ivy's voice was extra sweet as she walked towards him. With each step, her ankles crossed and her hips swayed as she stared him down. At least until Mason's back hit tiles. He hadn't even realized he was backpedaling. But she didn't stop, not until she was barely a breath away from him. He could almost feel her skin against him. Or maybe it was just the steam rising off their bodies and entwining into a single warm cloud that enveloped them. And he couldn’t help but inhale her scent. There was no fruity or flowery perfume. She hadn’t used any body wash or the like. All he could smell was the living, breathing, flesh and blood woman standing just a little too close to him.

"I, uh, have a, um, girlfriend." That was all he could think to say. It was just a reflex. The voice in the back of his head couldn't point out that he actually had two girlfriends (going on three) until well after he was down talking.

"So do I," She said with a shrug. A shrug that made her chest heave a little more than was necessary. "But it's just us here. They don't have to know."

"Mine will." Again, the words were out before his brain had any real input. But he could get behind the notion. He still didn't exactly have a roadmap for this whole thing. (This whole thing being code for "Demonically Induced Harem Via A Magical Phone App.) But honesty really did seem like the best policy.

But his brain was having trouble forming multisyllabic words at that particular moment. All of his blood was rushing the wrong way.

"Guilty conscience or kink," Ivy asked casually. Mason nearly swallowed his tongue. How could she possibly guess something like that!?

"Ooh, kink! So…?" Her hand rose slowly, palm down. Her fingernails were nanometers from him. She was agonizingly close to caressing his stomach and chest. Finally, her hand stopped, hovering above his shoulder. Ready to pull him into what would no doubt be a fierce kiss.

"Your girlfriend," Mason said weakly. When her hand dropped back to her side a rather rigid part of him started kicking the shit out of his conscience.

"Spoilsport." Ivy sighed as she walked back to her own showerhead. Still, her tone remained surprisingly chipper as she shut off the spigot. "If you change your mind you know where to find me."

And just like that she grabbed a towel and began to dry off. Maybe it was just his imagination, but her technique seemed rather… vigorous. The towel shimmed and shammed along her back, sides, and up and down her strong legs. It caused quite a bit of shaking and jiggling.

"Oh, and even if you don't you should come back for another lesson," She continued as she pulled on a fresh set of blue yoga pants. (Sans underwear he couldn't help but notice.) "It really is good for you. Your girlfriend will appreciate what a good workout does for you. And so will any other girls."

Then came a pink tank top. And one more friendly smile.

"Plus it's good for my business to have a handsome young man for the cougars to drool over. They certainly enjoyed the show today. Big dick in tight pants y'know?" Ivy teased him with another grin. At least before a wave of realization hit her face like a shovel. "Oh, especially if you come to one of the nude sessions. We have them once a week. You'll be beating the ladies off with a stick after that."

She tittered a bit at that.

"And given the "stick" in question they'll be lining up for the privilege."

Then she was gone, back out the door with another wave. And Mason was left standing under the flow of water with a raging hard-on, a mental image of several women in exotic poses wearing only sultry smiles, and a lot of questions.

The most pressing of which was: How was he supposed to get his pants back on when his cock was throbbingly hard?