Bathhouses were never a big thing in the state that Cas lived in. Everyone wished to respect others' privacy (or at least, avoid any peeping toms seeing them in the nude). To most people in the state, bathhouses were a foreign activity that existed for the more exotic places on the planet. That was, until a woman who has been studying abroad was elected as governor. One of her first actions was to erect multiple public bathhouses across the state. Legally, this was to “create a clean minded and encultured environment”, but everyone knew the real reason. The governor really liked bathhouses.

Young folks flocked to them like seagulls to a dropped burger on the boardwalk. Most older folks didn’t bother or found it too tacky or “sinful”. Cas grew up in a rather traditional environment. His family valued the old ways and he grew up doing so too. As he got older though, Cas wanted to branch out a little to see if there was a way to bridge tradition with modernism. He listened to newer kinds of music from younger bands, read whatever was hot, and got in touch with various other artists from all kinds of media. Eventually the many conversations he had all led to discussions on the bathhouses.

They were still seen as some sinful cursed place by the elderly, but a hot cool place to hang out with for anyone under thirty. They became even more popular when several bathhouses started to have “mixed-sex” rooms and pools. They were monitored heavily, but that didn’t stop some more adventurous couples from trying to sneak in some action. Not like that didn’t happen already in the same-sex pools. After some lengthy discussions, Cas was finally convinced to visit one of the bathhouses to see what all the fuss was about.

“Thank you for visiting us. Here, go through the left door to the men’s changing room. From there, you can either continue left to the men’s bath or go right to the mixed bath.” The cute lady at the front desk explained, making Cas nod understandingly.

Go right for mixed bath, gotcha.

There was only one issue. And that was that there was no right or left door, only a hallway in the middle. And Cas even knew that he did the exact thing the clerk told him to do. He changed in the room that was clearly labeled as ‘Men’s changing room’ and then continued down deeper into the building. Yet there still wasn’t a left or right door.

For a lack of better options, Cas continued down the hallway until he reached a somewhat strange crossing. To his immediate left, there was now a bath while the hallway seemed to continue to his right. It was a bit strange, since it kinda looked like he was walking circles in the bath house, but no matter. He was determined to find out what the mixed bath looked like, so to the right he went.

And it didn’t take long for him to find the other bath, which made Cas breathe a sigh of relief. So, with his towel wrapped around his privates and a deep breath, he got himself ready to enter the mixed bath for the first time.

The bath he entered was rather empty. There were a few women to the side chatting up with one another but there wasn’t a single man in sight. Cas felt a bit embarrassed and sat at the end of the pool, as far away from the women as possible. He was near the entrance and started to enjoy himself, though he noticed the women giving him a glance every now and then. He couldn’t read their faces from a distance so he had no idea if they were disgusted by him or they found him cute. The water was very warm and it made Cas relaxed. He felt at ease and began to drift off a little. That was until he heard a girl shrieked right in his ear.

“Eeeeeeep!” Cas turned around and saw five fully naked women standing behind him. One girl was covering her face, the other one (who appeared to be the one that screamed) was starting to run out of the room, but the rest just stared at him with disgusted looks on their face.

“What the hell are you doing here you perv!?” The tallest girl said.

“What do you mean? Isn’t this the mixed pool area?” Cas said, his face red in embarrassment.

“Oh I heard that one before!” The girl said as yanked Cas out of the pool with a surprising amount of force. Cas felt a bit dazed and was dragged on the ground in just the right angle so that he could glimpse up the women’s towels.

“Ah… hahah…” He laughed in a nervous tone. “Ah… look, it was an honest mistake! I’ll just leave and go to the right room-”

“Oh yeah?” The tall girl said. She grabbed Cas by the arm and whipped his towel off, revealing his surprisingly large penis to all the girls there. Some snickered, some blush, but the tall girl just laughed. She started to fondle with the towel before throwing back at Cas’ face. “There, maybe you should consider going to the men’s room next? They got a whole fan club of ‘guys’ that had the honor of sneaking in here!”

“Ahh! I get it, I get it.” Cas shouted and ran, more concerned of getting out of this hell of a wrong bath than actually hiding his junk with his towel, which still hung haphazardly over Cas’ head. He just really wanted to get out of here, and that was his utmost priority.

On his way out, he almost bumped into another girl that was just about to enter the bath, which he would have ignored if she didn’t cover her mouth with her hands and caused her towel to fall down as well. Which means, now there stood two people, Cas and a girl, without towel protection completely visible.

Naturally this didn’t exactly improve on his situation in any way at all. But he needed to be the bigger person, no matter what the circumstances brought him, so while the girl was mostly concerned about getting her towel back to cover her, Cas just made a run for it, as far away from the girl's bath as possible. Just knowing that he was at least getting away from this embarrassing situation made it a bit more bearable for him.

While he was running down the hallway, desperately trying to put on his towel again, he noticed that his chest felt rather tense. Like it was more tender and more sensitive than usual, but that might just have been because he has been going through shock at the moment. He needed to cool off badly, which was why he was so happy when he finally reached another bath.

After checking out the label and being surprised that this was now actually the mixed bath, Cas took a deep breath and entered into the correct unknown territory, completely missing the fact that his hair had slowly but surely started to grow out and already almost reached his shoulders.

To his relief, he found the mix-room. There were plenty of men and women about, talking, relaxing, and a few looked like they were doing something rather… interesting at the far part of the pool though Cas couldn’t get a clear look at it. He settled into the water, hoping to forget about what had transpired. Though the moment he sat down, he knew something was up. He could feel his hair getting wet… from around his back area. “What-?” Cas reached back and grabbed his now very long golden hair and gasped.

“That’s some girly hair you got there pal!” A dude with a stereotypical surfer accent said. “You kind of like a chick!”

“What? What do you mean?” Cas said, startled.

“Well like, you got the physique of a man, but the face of a woman! Is that natural or did you get surgery?”

“Wait, huh?” Cas looked down at the water. It was oddly calm despite the amount of people in the pool. He could see his reflection and it confirmed what that man just said. His face looked unbelievably like a woman’s. He lacked any and all facial hair, his eyes were larger, his narrower, and it looked overall a lot cuter. Cas gasped in shock and his face turned bright red. He wanted to scream or complain, or something, but the intense feeling in his chest began to take over.

“Ah… ah….” Cas couldn’t quite tell what was happening. He felt like something was going to burst out of his chest like in Alien. Indeed, something was pushing out, behind both of his nipples in fact. “Nnghh…” He grunted and squealed, his voice cracking and turning into a much higher pitch as two large but still rather modest twin peaks formed on his chest.

“Whoa, if it weren’t for the thing between your legs, I would think you were a woman!” The surfer dude said. Cas gasped and stared at the boobs that now dangled on his chest. That bounced and swayed and he started to garner more attention from all the patrons there.

“D-don’t look at me!” He yelled.

“Chilax dude. I am just stating facts. No need to flip out like that.” The muscular guy said, seemingly more surprised at Cas’ reaction than the fact that Cas was changing right in front of him. Did he seriously not realize that Cas was changing?

“Uh… S-Sir. I-is… Do you… Did anything s-strange happen to me just n-now?” Cas stuttered, struggling with his towel to cover the right spots on his body, because for some reason, he felt the compulsion to hide his nips from this guy in front of him as well.

“Strange? Not really. Well, besides you freaking out for no reason that is.” The guy said, shaking his head. “Just relaxy, bro. This is a mixed bath, so just don’t worry about things like that. Neither your boobs nor your dick are among the biggest I have seen today. Also, if you really care so much about covering up your private spots, I suggest you check again where those are on your body. You are not really covering up anything right now.”

Growing bright red in his face, Cas slowly turned to look down at his mammaries and couldn't believe his eyes. Right in front of his nose, his chest was continuing to fill up, growing larger to the point that it easily surpassed the size of his head… maybe even twice over. Where his nips used to be was now nothing but soft boobs flesh, as during the expansion process they have been moved further down.

It was true. From the guy's perspective, he could see everything. And just that realization made not only Cas’ head take on an even brighter shade of red, but also made his other private place start to tingle uncomfortably.

Cas wasn’t quite sure what to cover up: his crotch or his chest. His reaction to the transformation gave him more attention than his massive boobs and dick. The tingly feeling in his nether regions began to become more intense as Cas went to cover it up, but as he did, he started to moan. The looks of concern from the other patrons became glares and several eyebrows were raised as Cas made a cacophony of shameless sounds, on the verge of an orgasm. “Ah… ah…. Oooooooo!!!” He let out, as he dick shriveled into nothingness.

“Yeah gurl, I know I’m hot, but like, we are in a public area,” the dude said. Cas panted hard and stared at the dude.

“G-girl!?”

“Yeah, I can see your puss out in the open… and your… that’s nasty.” The dude scooted away from bit and gave Cas a disgusted look. One look down confirmed his… or rather, her fears. She was no longer a man, but a woman through and through. The very sight of her new vagina on top of the rather shameless activity she participated in made her even more embarrassed. Cas covered her crotch but that didn’t stop her chest from inflating some more… nor did it prevent her ass from doing the same.

“Agh! How- why, ah!” A few more moans escaped her lips, but the sensations were not as intense as they were before. Cas was able to control herself to a certain extent and fortunately, she stopped being the center of attention… for the most part. Her boobs had become so big that they more than tripled the size of her head. It didn’t matter if the person staring at her was a horny perv or not, boobs the size of these would attract attention from anyone.

“I give up…” Cas let out, her voice sounding soft and creamy. She leaned back and closed her eyes, quickly noticing something quite bad. Despite how absolutely ridiculously humongous her breasts were, her thighs had blown up so much at this point as well that her breasts weren’t even touching the water anymore.

But Cas didn’t care anymore about any of that. She just leaned back and enjoyed the bath while trying to ignore the starres of practically everyone else in the room. The only thing she could do was hope that whatever just happened to her, didn’t last forever…

—

“Ah~ That hit the spot~” Cas let out as she sat down in the pleasantly warm waters of her local bathhouse, ignoring the fact that immediately all eyes were on her the moment she stepped into the room. Though she didn’t blame them, as most people probably have never seen a Y-Cupped girl in their entire life before. There wasn’t much she could do to attract less attention, as she already covered up all of her private spots the best she could with a giant towel.

A few weeks had passed since the unfortunate incident of Cas’ first Bathhouse visit and it was pretty clear by now that the damage from then wasn’t just suddenly disappearing. She was now pretty much stuck as a woman with ungodly large breasts, Hips with a diameter of over a meter, thighs that can crush boulders and hair longer than her body height.

And there wasn’t much she could do to change that, as even just cutting her hair would result in the weird feeling of it growing back to its original length in less than a minute, which not only felt weird but also just always left Cas incredibly hungry for some reason. So, after a few attempts, she just gave up. Not that it really mattered because nobody seemed to remember the Male Cas anyway. In their eyes, she just always was the world record holder in both bust size and hip size.

“Uhm… excuse me, miss?” A teenage boy asked, making Cas briefly open her eyes to look at him, before closing them again and answering. “Yes? How can I help you?”

“Uhm… Do you mind… covering up a bit more?” He bravely asked, red like a tomate in his face and clearly trying his absolutely hardest to not look at Cas directly. Cas just gave off a brief chuckle.

“Hey, feel free to look if you can't help it. I am trying my hardest to cover up, but some people just have it a bit more difficult than others you know?” Cas answered, giving a brief smile to the boy in front of her. She briefly checked with her hands for her towel and nodded silently to herself when she confirmed that it was still there.

“But miss, I know this is a mixed bath, but couldn't you just go over to the girls' bath if this is bothering you…?” The boy naively asked, making Cas laugh wholeheartedly, and laugh even harder when she noticed that the boy was now completely staring at her bouncing chest.

“Believe me, boy. I have learned 2 important life lessons being a busty blonde.” Cas said, nodding to herself, making her oversized breasts jiggle quite a bit. “First, if you get used to it, then people staring at your assets really isn't all that bad.”

Then she opened her eyes and tilted her head as a big smile formed on her face. “And second, the girls' bath… is a nightmare.”