The Costume Party: Furina and Arlecchino (Com)

 A commission for Last_of_workers

Zariah and Markus were in separate rooms of their apartment messing around with their costumes.

Markus was in his room already dressed in his Childe, while Zariah was in the living room brushing the wig for her new Arlecchino costume.

Neither had plans, so they were going to go trick or treating together in their Genshin Impact costumes, but then something better came up when Turner texted the group and invited them all to his house for a party.

Markus was excited and ran out of the room to talk to Zariah and see if she wanted to go. Hanging out with all their Genshin friends and playing the game all night was much more appealing to her than walking around with tons of young screaming kids.

So the two got ready and were about to head out the door when Markus got caught on the door frame and ripped his costume apart. He was devastated since the damage was too severe to fix in time for the party.

He was about to give up and stay home, but Zariah insisted he come, then she went to her room and got her old Furina costume and made him put it on. He was a bit embarrassed, mostly because he was a guy yet her costume still fit him pretty well.

They then once again head to the party. They were basically the last to arrive, with the only person arriving after them being Itzel. Turner asked Markus about the costume he was wearing since everyone already knew it was Zariah’s old one since she used to wear it all the time.

Markus got extremely embarrassed but explained his blunder with the door which was why he was borrowing Zariah’s old costume. Turner shrugged and then told Markus he looked good in it, which actually helped him stop being so embarrassed about it.

After that Zariah and Markus entered they walked around chatting with their friends. Turner had walked outside and grabbed Itzel, which meant everyone was here and the real party was about to begin.

Zariah went to chat with Ariel and Markus got his phone out and asked if anyone wanted to play Genshin with him. About an hour later everyone is playing Genshin in different groups. Markus was with Imani, Ariel, and Itzel. They were helping him find treasure.

Zariah was grouped up with Luke, Jenna, and Beckham. The four of them were just goofing around playing music with different instruments. A bright light burst from outside, Zariah who wasn't very focused saw it in the corner of her eye and looked out the window towards it.

She thought it was just some spotlight from a party so she watched it while eating from the bowl of pretzels Penelope placed in her lap when she came into the room earlier. Markus was too focused on the game to notice, but within the next few seconds, both of them were blinded by it.

Zariah continued to eat the pretzels completely unphased and did not question what just happened while Markus was rubbing her eyes and complaining about it. Zariah looked at Markus to playfully tell her to stop complaining but stopped when she saw a small girl where he should have been.

She just stared blankly for a second, but she along with everyone's attention was quickly drawn towards Ariel. The ruined mech she made to go on her wheelchair had suddenly come to life and was holding her, all while demanding everyone stay away from her.

Then Beckham started to freak out, but she didn't sound serious because of how high-pitched her voice was. Everyone looked at her, and seeing her as a tiny little girl floating in the air shocked everyone… Everyone but Zariah, that is who is still eating Penelope's pretzels.

Markus noticed Zariah was really calm, so she ran up to her and asked why she was so calm. Zariah asked why she shouldn't be. Markus then pointed down at Zariah’s chest and said that everyone had become real versions of their costumes and that Zariah was now a tall big-breasted woman.

Zariah looked down and as Markus said, she had massive breasts. Zariah smiled and grabbed them, which completely shocked Markus more than them suddenly transforming. Zariah said it was amazing

Not that she became a real version of Arlecchino which she actually really liked, but she was more excited to finally have real breasts and super big ones. She’d always been flat-chested, but now she had real breasts.

Zariah playing around with her breasts suddenly made Markus more aware of herself. She had transformed too, and while she was thankful she was relatively flat-chested, she was definitely a girl now.

Even worse than that, had she not ripped her Childe costume, she’d currently get to be the cool guy. Everyone had gone off to check themselves out while Zariah and Markus were talking. Once Zariah noticed that, she wanted to go off as well.

So she stood up, grabbed Markus’s hand, and dragged her up to one of Turner’s bedrooms. Markus stood in front of a mirror looking at herself awkwardly. She was embarrassed about her current body, but Zariah wasn't. She was so excited about it that she had to check it all out.

Which is why Markus noticed she was stripping in the background behind her. Markus turned bright red and covered her eyes and yelled at Zariah asking her what the hell she was doing. Zariah just looked over and casually said checking herself out.

Markus asked why she was doing that with her here. Zariah just shrugged and said it was okay since they were both girls. Markus yelled at her not to remind her, and then Zariah walked over completely naked and moved Markus away from the mirror.

Zariah proceeded to do poses and check out her amazing new body. Markus tried to keep her eyes covered, but her curiosity was too strong and she started to peek through her fingers. Zariah was expecting that and caught her.

Zariah then went up behind Markus and pressed her massive breasts on top of her head, knocking her hat off. Markus was too embarrassed and a bit too excited to move or say anything. Zariah chucked and turned Markus around.

She seductively asked Markus if she still liked women. Markus was confused and managed to ask why. Zariah leaned down and pressed her lips next to Markus’s ear and asked if she wanted to touch her.

Markus started to panic and mumble a bit then suddenly there was a puddle on the floor under them. Zariah looked down. She laughed saying she was just playing, then apologized and said she didn’t mean to make her cum all over the floor.

Markus went from being embarrassed to being furious. She said she hadn’t cummed. Zariah laughed and then asked what all the wet stuff that just came from her was. She then pointed at it which caused a small ball of fire to come out of her hand.

The second it hit the puddle they combined and created a vaporization effect just like in the game. Both of them were amazed by this. Markus reached her hands out and summoned more water. Zariah then used her fire to burst them.

Before they knew it the room was foggy with steam. Which caused those who happened to be floating down the hall to fling the door open to make sure everything was alright. Zariah panicked a bit since she was still naked, but because the room was steamy Beckham couldn't see them.

So Markus ran over to the door to distract Beckham. She explained they had powers and they went a bit overboard, but it was just steam and nothing to worry about. Beckham pointed a finger at her and told her to stop since it would get everything in the room slightly moist.

Markus smiled awkwardly and agreed. Markus said she was going to air it out and come downstairs. Beckham then left and Markus closed the door. Zariah started to get dressed while Markus opened a window pulled all the water from the air and shot it outside.

The two then went down to meet up with everyone else. They were going to tell them they had powers, but like them, the others quickly figured it out. They even learned they could summon weapons. So Zariah and Marlus went into the front yard to summon theirs.

Markus went first and reached her hand out in front of her. Out of thin air, the sword Splendor of Tranquil Waters appeared in her hand. Zariah was amazed and excitedly reached her hand out to summon her weapon.

But the way she did it caused it to shoot like she had thrown it as it appeared. The Crimson Moon's Semblance polearm nearly put a hole through Markus. Zariah apologized to Markus, but Markus just hit her with a ton of water.

The two then had a friendly battle, which ended with Zariah as the winner since she was bigger and stronger. Once they were done they went to hang out a bit more with everyone else before heading home.

Once at home They went to their rooms and slept for the night. Zariah left amazingly while completely naked, and Markus slept in her clothes and barely got any sleep because she still wasn’t used to being so small or a girl.

The following morning they both woke up and met in the living room, still wearing their costumes as right now it was the only thing that fit them. Markus asked Zariah how long she thought they were going to be like this.

Zariah shrugged and said she hoped for everyone as she was super hot and Markus was super adorable. Markus turned her head so Zariah couldn't see her blush, and that’s when they both got another text from Turner.

Well, Zariah's wish was basically granted, as Turner said that a real witch used magic to turn a party of people into their costumes, but went a bit overboard and transformed the entire block around Turner's house. She also seemingly vanished, so they were stuck like this.

Zariah was happy about it, but Markus was a bit disappointed, the powers were nice but being the girl was so weird. Zariah noticed she was upset and got up and walked over to her. She told Markus she knew a way to make her enjoy being a girl.

Markus tilted her head and asked how. That’s when Zariah leaned down and kissed her on the lips. Zariah’s lips felt so warm against Markus’s, and Markus’s lips were super soft from the small layer of water that kept them protected.

After being kissed Marus freaked out a bit and asked what was that about. Zariah just said she was playing around and loved to see her flustered. She then picked Markus up and dragged her out the door.

Markus tried to free herself but then gave up quickly and asked where they were going. Zariah said neither of them had any clothes that fit, so they went shopping. She was going to pick out so many hot outfits for herself, and a ton of cute ones for Markus. Markus sighed knowing she couldn’t stop Zariah, but smiled at the thought of seeing her in something sexy, or even in the changing room.