"Oh come on, you just got back!" Celine complained.



"Yeah, I know. You're not the only one who's been waiting to see me, though." Lily replied.



Celine had been waiting for months for Lily to come back. The two of them had been best friends since childhood. Unfortunately, Lily had decided to go far away for college. As a result, Celine had only seen her over the summer for the past few years. Now that Lily had graduated, Celine was looking forward to painting the town with her best friend. Unfortunately, Lily's family was also itching to spend time with her. They immediately planned a cookout at the local beach. Apparently, Lily's mother wanted to limit it to just a family gathering since money was tight.



"I'm back home for good now, so we'll have plenty of time to hang out." Lily said.



"I know, I was just really looking forward to having one of our weekends." Celine sighed.



Then, a mischievous smile crossed Celine's face. This situation called for one of Celine's special tricks.



"Well, maybe there's a way for me to come along without anyone knowing I'm there." Celine said slyly.



Lily didn't know whether to roll her eyes or ask what Celine had in mind. Lily was privy to Celine's biggest secret. Celine came from a family with magical knowledge. Throughout their friendship, Lily had seen Celine do many things that shouldn't be possible. Apparently, mage families were very secretive. Celine could get in a lot of trouble if it was ever discovered that Lily knew Celine could use magic. It always struck Lily as a sign of their friendship that Celine trusted Lily with such a secret. Lily couldn't help but be interested every time Celine suggested using her magic. Celine had even taught Lily a few basic spells, an even bigger violation of mage law. The two of them often joked about what would happen if they were ever found out.



"Well, don't keep me waiting." Lily said. "How are you thinking of tagging along with me?"



"Just a little something that lets me turn myself into an object. I just read about the spell last week. Using this, I could hide myself as any of your things, and no one would ever know I'm there." Celine explained.



"Wait, so you'll just be some random object? Can you even do anything like that? How would you even enjoy yourself?" Lily asked, wondering if Celine had thought this through.



"I'll still be able to see and hear everything around me, according to what it said in the book. It'll be fun just being there without anyone knowing." Celine replied.



"Okay, so what would you even change yourself into?" Lily asked. She was trying to sound skeptical, but inside she was interested to hear what Celine was planning.



"Well let's see. You're going to a beach. I'll want to be something you'll have on you the whole time so we don't get separated, something like, your swimsuit, maybe?" Celine suggested with a grin.



"Y-you can't be serious with that." Lily stammered. "You think I'm going to wear you?"



"What's the matter? afraid you'll like it?" Celine replied. "I can't think of anything else you'll have on you all the time during a beach trip, can you?"



"You really want to tag along with me that much, huh?" Lily said with a sigh.



"You won't even know I'm there." Celine said, trying and failing to put on an innocent look.



Finally, Lily accepted there was no talking Celine out of this.



"Alright, fine. This is by far the weirdest thing you've ever suggested doing with your magic, but I'll let you come along." Lily relented. "You can do this only because I've missed you too."



"Awesome, I look forward to joining you." Celine said, patting Lily on the back.



"Yeah, yeah, just meet me at the house tomorrow. You can cast your spell before we leave." Lily said.



"Sounds like a plan." Celine agreed.



The next morning, Celine arrived at Lily's place just as planned. The two of them went to Lily's room and closed the door.



"You know, we wouldn't have to be this secretive if you would get your own place." Celine said.



"Oh, give me a break, I just got back in town." Lily retorted.



"I know, I know." Celine said playfully.



"Alright, how does this spell of yours work then? I'm hoping you'll be quiet once you're a swimsuit." Lily asked with a playful look of her own.



"Well, it goes a little something like this." Celine said as she held her hand out and began to wiggle her fingers. She then said some words that Lily could not understand. A second later, a bright ball of blue light appeared in the palm of Celine's hand.



"Well, here goes nothing." Celine said. With that, she pushed the ball of light into her own forehead. As soon as it made contact, the ball of light sank into Celine's head and disappeared. Celine stood still for half a second before there was a loud pop, and Celine disappeared in a thick cloud of smoke.



Lily jumped back onto her bed, startled by the sudden loud noise. It took a few seconds for the smoke to dissipate. When it cleared, Celine was no longer there. Instead, a mint-green one piece swimsuit was lying on the floor where Celine had been standing.



"Well, I guess it worked." Lily said. She would have been more shocked by this occurrence if this was the first time she had seen magic. Now, it was just another one of Celine's tricks. This was the first time Lily had seen Celine turn herself into something else, though.



"Well, how does it feel to be a swimsuit?" Lily asked.



The swimsuit gave no reply. It just laid there motionlessly on the floor like any other swimsuit.



Celine tried to reply, but found herself unable to. She no longer had any mouth with which to speak. She couldn't move at all either. She had no muscles, just thin nylon, incapable of moving on its own. Now that Celine felt what it was like to be utterly still like this, some doubt crept into her mind. However, this had been her idea, so she couldn't back out of it now.



"I guess you're about as talkative as an ordinary swimsuit. That's definitely an improvement." Lily teased. "I suppose all that's left to do is try you on"



Lily reached down and grabbed the swimsuit Celine had become. Immediately Celine was struck by how easily her new form crumpled under Lily's grip. It felt like something that should hurt, but it didn't. Despite how clearly Celine could feel Lily's hand clamp her, her new body easily folded to accommodate Lily's fingers.



Lily grabbed onto Celine with her other hand and stretched out the swimsuit. Celine would have let out a gasp if she could. It felt like it should be painful. A human body would not be able to stretch like this. However, it felt....oddly satisfying. It was like she was made for it.



"Well, I guess there's nothing else to do but try you on." Lily said. "I can't believe you came up with an idea this weird. Well, it was your idea so don't complain if it's not like you imagined."



Celine was still too dazed from being stretched to pay attention to what Lily was saying. She only snapped back into awareness once Lily laid her on the bed. Celine could do nothing but lie there as Lily undressed. Unable to look away, Celine soon found herself staring at Lily's naked form. Even if Celine could currently talk, she would be speechless. She wasn't normally into other women, but there was something about Lily...



Lily's hand reached down and grabbed Celine. Again, Celine's swimsuit form easily crumpled under Lily's grip. Lily then grabbed Celine with her other hand and effortlessly spread Celine out. The swimsuit was then lowered to the floor. Celine's mind was already losing focus from the feeling of being spread open. She then felt one of Lily's feet slide into her from the top. Celine couldn't believe how clearly she could feel the leg working its way into her. She was incredibly sensitive to any touch from Lily's skin. The stimulation doubled when Lily stuck her other foot in.



Lily then began to pull Celine up her legs. The smooth skin rubbing on the inside of her sent Celine's mind into a frenzy. Nothing she had felt as a human was remotely similar. Celine enjoyed it, but would not know how to describe it if she could talk. Time seemed to slow down. The sensation became more vivid the further up Lily's legs she went. She reached Lily's hips and Celine found herself in contact with even more of Lily's skin. Celine felt herself get stretched more and more as she went up Lily's body. Finally, her top portion reached Lily's chest and she was pulled tightly around Lily's torso. Lily pulled the shoulder bands of the new swimsuit over her shoulders and with that, Celine was snugly on Lily.



There was no detail of the body Celine was stretched over that she couldn't feel. Lily's breasts pushed out from the front while her buttocks did the same from the back. If Celine still had a face, it would be bright red as she processed the feeling of her bottom portion pressed tightly against Lily's vagina.



Lily stood there for a second, taking in the fact that she was now wearing her friend. She couldn't deny that the swimsuit felt quite comfortable. Lily moved around a bit to see how it felt, unknowingly overloading Celine's senses as the latter tried to process what she was experiencing. With every movement, Lily's skin rubbed against the inside of Celine's nylon form. Celine involuntarily stretched and shifted to keep up with Lily's movements. It felt amazing. Celine could focus on nothing else. She absolutely loved the feeling of being stretched around Lily.



Lily began walking and those feelings intensified for Celine. In addition to the stretching and rubbing she was already experiencing, Celine now felt Lily's breasts bounce with each step. Judging from the way Celine's vision was bouncing, it seemed her 'eyes' were at Lily's chest level.



Lily grabbed a tank-top and a pair of shorts and pulled them on over the swimsuit. Celine quickly found her vision obscured by the white fabric of the tank-top. However, her sense of touch gained something new to process. The entirety of her new swimsuit form was now being touched by Lily's skin on the inside, and by Lily's clothes on the outside. There was now no part of Celine that wasn't being rubbed against with each movement Lily made. The fabric of Lily's clothes felt quite coarse against Celine's thin new form. The friction was yet another thing that felt like it should hurt. Celine found herself enjoying it, though. There was something about how impossible it felt that was exciting, maybe even a little arousing to her. It wasn't like she could truly process it with how overloaded her mind was. That didn't matter right then. She could try to make sense of it later. For the moment, she was enjoying being a swimsuit.



The ride to the beach passed by in a blur for Celine. She still could not see anything with Lily's tank-top over her. The vibrations of the car ensured that there always was some slight movement making Celine slightly brush against the body she was wrapped around and the clothes that were covering her. The car's vibrations produced the most potent sensations at the bottom of Celine's swimsuit form. That portion of Celine was pinched tightly between Lily's butt and the seat. The tight press made the shape of Lily's butt quite clear to Celine.



After an indeterminate amount of time, the car came to a stop. Though Celine couldn't see anything, she could tell Lily had begun walking again by the way Lily's body moved inside her. Celine could even tell when the ground Lily was walking on went from concrete to sand by the reduced impact of her steps. Then, Lily pulled the tank-top off. Immediately, Celine's vision was overwhelmed by the brightness of the sunlight. Even though she didn't have actual eyes in this form, Celine's vision quickly adjusted. It was no surprise that they were now on a beach.



From there, Lily went about the day on the beach. She didn't pay any attention to her swimsuit apart from the occasional acknowledgement of how comfortable it was. One of the first things Lily did was take a swim. If Celine thought she was wrapped tightly around Lily already, she received quite the shock once she was submerged. She instantly absorbed enough water that she was completely saturated. This caused her to cling even more tightly to Lily's skin. The stretching and rubbing Celine had experienced already was nothing compared to what she felt as Lily moved through the water. She was barely able to notice how strange it was to be underwater without having to hold her breath.



After her swim, Lily simply lied down to sunbathe. It was quite the contrast from the constant motion of Lily's  swim. At that point, Lily was simply lying there. The only motion was the steady rising and falling of Lily's chest as she breathed. Celine could slowly feel the water she had absorbed evaporating. The sunlight beaming down on her felt quite nice, even as a swimsuit.



The relaxation didn't last long, however. Soon Lily's younger cousins appeared and asked Lily to build a sandcastle with them. It wasn't long before Lily was sitting in the sand by the water. Celine could feel the tiny grains of sand scratching the portion of her that was covering Lily's butt. Some sand grains just brushed against her as Lily moved. Others got stuck in the nylon she was made of and clung to her. The sensation was strangely pleasant. It felt similar to an itch being scratched. At that point, Celine had to assume anything coming into contact with her would produce similarly vivid feelings.



Meanwhile, Lily was having a great day on the beach with her family. All the while, the swimsuit she was wearing remained a nice fit. Lily was skeptical of Celine's idea at first. She now had to admit it turned out pretty well. Somehow, Celine had ended up becoming the most comfortable swimsuit Lily had ever worn. Lily loved how it felt against her skin. She wondered if any normal swimsuit could possibly feel like that.



"Well I've gotta hand it to you. You make an amazing swimsuit, Celine." Lily said, tugging playfully on Celine's shoulder band. "Part of me wants to keep you like this."



As soon as Lily said that she gasped and covered her mouth. Lily had no way of knowing what this was like for Celine. For all she knew, Celine could be hating this. Then again, she could always just undo the spell if she didn't like being a swimsuit. Still, it felt weird and a little selfish to say that she wanted to keep her friend as a swimsuit.



"Um, sorry. I didn't mean to say I wanted to keep you like this. Of course I want you to change back." Lily said awkwardly. She was certain she was overthinking the situation like she tended to do. When the swimsuit remained motionlessly wrapped around her, Lily assumed that meant Celine was fine with it. So Lily continued to enjoy the day out on the beach.



Unbeknownst to Lily, her words did get a reaction out of Celine. Celine was snapped out of enjoying the experience of being a swimsuit by the words "change back." Celine hadn't been thinking that far ahead since the day had started, but she supposed that part had to come eventually. Once Lily takes her off, Celine would just have to say the incantation and touch herself with the ball of light in her hand again to change back. Except.......How could she say the incantation with no mouth? She didn't have any hands for the ball of light to appear in either.



"Uh oh....." Celine thought, worry starting to creep into her mind. It was now obvious that she would not be able to transform back into a human the same way she had transformed into a swimsuit. Previously, she had only used this spell to turn objects into other objects. All she had to do was use the spell again to revert those changes if she wanted to. When she read the passage in the book saying that any living thing transformed by the spell would retain its consciousness, even if transformed into an inanimate object, Celine assumed that meant it was safe to use on a person. She couldn't believe she had failed to consider what would happen if the transformed person was the one who knew how to perform the spell. She might end up being a swimsuit longer than she had planned....



Lily enjoyed the rest of the day, unaware of the worrying realization that Celine had come to. Before long, the sun began to sink beyond the horizon. It was time to pack up and head home. Before Celine realized it, she was once again covered by Lily's tank-top and shorts. Celine was trying her best to think about how she could get out of the predicament she had put herself in. At least Lily knew that she had transformed into this swimsuit. It wasn't like she was trapped with no one knowing. Lily had no idea how to perform the spell that was needed, though. Celine had taught her some basic magic, but that was just simple things like drawing small objects toward her and changing the color of things. She had never taught Lily something as complex as full transformation magic. Lily would likely need to have the book near her even if she knew the basics of it.



Perhaps Lily could ask someone in Celine's family for help undoing it. However, that would come with its own dangers. Lily was not supposed to know about magic. Celine had no idea if either of them would be in trouble if word got out that Celine had shared the secret with Lily. Horrifying possibilities went through Celine's mind as she imagined ways they might try to silence Lily. From wiping her memory to making her disappear, the thought of what could happen to her friend made Celine not want Lily to risk it just to get her out of the situation she had put herself in.



As Celine came to that conclusion, the car started. The vibrations from the engine caused her to rub slightly against Lily in a way that was quite pleasant.



"Maybe I can get used to this if I have to." Celine thought wryly.



After arriving at her home, Lily went to her bedroom and got undressed. The tank-top and shorts came off, followed by the swimsuit. She laid the swimsuit on her bed, expecting it to turn back into her friend, but it just remained motionless on the bed. Lily shrugged and got changed into the clothes she would be sleeping in. When she finished changing, the swimsuit remained where she had left it, not moving at all.



"Hello? Celine? The trip is over, we're at my house now. Time for you to go home too." Lily said to the swimsuit.



The swimsuit just lied there, not doing anything, much less transforming back into her friend. The minutes ticked by with nothing changing. Lily was left to wonder why the swimsuit was remaining a swimsuit.