Authors notes: UnderTale and Deltarune are owned by Toby Fox. The only Character I own is the Main Character OC and Juna I made for this story. This is a work of fiction any character/s that may seem based on someone or something you own is a coincidence. Also any other AU that I may base a story element around is their respective owners'. I only use them in right of fair use do not comment saying I stole an idea or property, thank you. Also seeing as many AUs have been stolen I couldn't find the original owners of some and I will not be saying which AUs I am using for the story elements

After Dee told the gang their tales of adventure, it was time for people to head either to bed or back home. Everyone was surprised to see it had gotten so late so fast, but the more pressing matter was, where was everyone going to sleep now? Still fearful for Dee's health, Papyrus gave them their bed as before and took the couch, Frisk and Juna wanting to hear more of Dee's stories, jumped at the chance to have a sleepover. As for Toriel, she would go to the Snowdin town Inn to sleep. Before heading in to the sleepover Frisk walked Toriel back to the Inn, as well and made a new save. Now that Dee was awake she felt they should have make a save, as to not throw the time stream out of whack if they had to reload. Who know what would happen if they were to reload an old save with Dee awake, crazy possibilities flow through Frisk's mind as she walked to the skele-bros house. One of which being if there would be two Dee's one comatose the other awake. Walking back into the house, Frisk was greeted to snacks and drinks as she was dragged into Paps room by Juna. As the door shut the Skele-bros heard Juna yell out Girls' night. Papyrus: "Nyeh, heh, heh, I'm glad they're having fun." Sans: "Yea, after everything that's happened it'll be good to relax." 

Meanwhile in Pap's room

Dee: "Umm, can you really call this a girl's night? I mean, I'm only like half girl." Juna: "Well~ you're a girl right now, so yea it counts. Besides, now that you're awake we can talk. Tell us about yourself." Dee: "So what, we're just gonna chat all night?" Juna: "Yup that's the plan, haven't you been to a sleepover before?" Dee and Frisk both shook their heads to the question, neither of them had been to a sleepover before ever. Even more excited, Juna began to make plans for their first ever sleepover. while that happened Sans and Papyrus were busy working on a surprise for Dee. Sans: "Oh this is going to be great, remind me to thank Toriel for this cake recipe." Papyrus: "Of course Brother, WAIT that's the salt!" Sans: "Oh, yea sorry, I'm just excited. First party we've thrown in a while, and to think it's almost Feast day. This is going to be good, no it's going to be Grate!" He said as he grated the Chocolate for the toppings. Papyrus: "Yes I too... wait, was that a Pun?" As Sans started to giggle Paps started to fume, and as they finished their cake, the "girls" would be soon falling asleep. For some reason Juna wanted the three of them to try sleeping on the floor, and though Papyrus's rug was very thick. This was next to impossible for Frisk and Juna, Dee how ever was able to fall asleep easy on the rug. After giving up on the floor the three of them nestled in Papyrus's bed, thankfully it was just the right size for the three of them. It was weird of course, but Dee made a few jokes which lightened the awkward air. Dee: "So what do you call a skeleton in a sheet? A Bone bag! What do you tell a human in a racecar bed? Swift Dreams. Heard a myth about a single bed placed on top of another one, and attached with a ladder. Fortunately, I was able to debunk it. Not going to lie, my bed is broken. Saw a shop saying they were having a bed sale, 50% off everything. When I went in, all of their beds were only three foot long. I wrote a story about my bed. I made it myself. A friend replaced his bed with a trampoline without telling his partner. She hit the roof. Y'know I heard taller people sleep longer." As Dee continued to joke, in the kitchen Papyrus felt a chill down his spine. Sans: "What's up bro?" Papyrus: "I feel like... someone is making bad jokes somewhere very close." Sans: "Well we're done with the cake, lets go work on the case and see if we can Closet." Papyrus: "NOOoooo, I'm being attacked on all sides by bad jokes!"

Some time later everyone was finally asleep, all was nice and peaceful, or so it seemed. In the silence of the night, almost everyone in the skeleton house were having a different set of nightmares. For Sans, it was the Genocide route, Juna, it was her reliving being killed, Frisk, the abuse of the orphanage, and Dee, was being confronted by a different kind of Nightmare. Nightmare Sans: "So you're the one? You don't look like a great destroyer to me." Dee: "Who the hell are you?" Nightmare Sans: "I'm Sans, Nightmare Sans that is. But my enemies and minions just call me Nightmare." Dee: "And you want what?" Nightmare: "You of course, to join me in conquering the multiverse, and kill Dream." Dee: "And instantly, the answer is no. I won't be used again." Nightmare: "Oh really? Fine then." Dee: "Wait what?! You're just going to leave? Just like that?" Nightmare: "Of course I am, I'm not stupid. My ooze can't protect me from Nothingness, and besides. Even if you don't help me directly, the negative emotions you produce are very powerful. I can just absorb them and grow more powerful. You're an infinite well spring of negative emotions, hell just feeding on you and no one else would be enough to become more powerful. Enjoy the nightmares, brat." With that he just left, no muss, no fuss, no fight. Leaving Dee to "enjoy their nightmares." Awaking with a gasp Frisk looked around the room. After calming down, she couldn't sleep so they sat at Papyrus's computer just thinking. As the clock ticked away, after a bit Juna's eye began to flash, from her time there Frisk knew that meant a nightmare. As she went over to comfort her friend, she was stopped dead in her tracts. There was a feeling of dread hanging over the area, looking around the room they saw Dee's eye glowing under their eye lid. Thinking to herself that couldn't be where this dreadful feeling was coming from, she forced a step forward. Sitting up with a gasping scream, in a dead sleep Dee fell out of bed. This loud sound was enough to wake Juna, whom went to check it out. In the silence of the night, Papyrus was sitting at the table working on new puzzle ideas, when Sans walked into the kitchen. Papyrus: "Another nightmare brother?" Sans: "Yea, it wasn't so bad this time though, I actually lived through..." Before Sans could finish the sounds of a small blaster firing rang out though the house.

A few moments earlier

As Juna and Frisk debated on waking Dee up or just moving them to the bed, the sleeping Dee began to sleep walk. Walking around the room mumbling something incoherently, the two were left wondering if you should wake a sleep walker or not. (The answer is yes, but they don't know that) Determined to help her friend, Frisk decided to wake them up. Walking over they began talking to Dee, asking them to wake up in different ways. Getting closer she grabbed Dee's shoulder lightly, this caused Dee to jump, and in their foggy half asleep state, coming straight from a nightmare. They summoned and fired a blaster at Frisk, luckily Juna tackled Frisk out of the way of the blast. Waking up fully from the sound of the blaster, Dee couldn't apologize enough to both of them. Bursting through the door, Sans and Papyrus were glad to see no one was hurt. Sans: "Okay so what happened." Frisk: "It's my fault, Dee started sleep walking and I grabbed their shoulder." Sans: "Hmm, well it doesn't seem to be any damage done. so I guess it's no big deal." Papyrus: "No damage?! SANS LOOK AT MY POOR COMPUTER!!" Indeed Papyrus's computer had been blasted into junk, Dee once more apologizing said they'd find a way to replace it. Sans: "No problem kiddo, 'sides not like you can get a job or anything." Dee: "True but I have my ways." With that Dee wire swung out the window, in the middle of the night, to who knows where. Before Sans could try to follow Frisk stopped him, saying if they're that determined he couldn't stop them. Juna: "Hey, I just thought of this, since Imma skeleton now, can I learn also learn to teleport like you Sans?" Frisk: "Ooo, I want to try to learn too!" Papyrus: "Wait, why would you want to learn something so lazy, when you could learn flight magic instead." Frisk/Juna: "FLIGHT MAGIC?!?" Sans: "Yup, that's right, Flight magic is similar to teleporting but it's easier to learn and it's not restricted to skeletons." Juna/Frisk: "I want to learn BOTH!" As the two of them were so in sync through the conversation they ended up making the other laugh. But seeing as it was still the middle of the night, the bros tucked them both back in bed and Sans read them a story to calm down to.

The next morning, around four or so hours later, the girls were in Snowdin woods with the bros and Toriel. Sans: "Now the key to teleportation magic is a knowledge of space time and quantum physics, well that or jumping. Heh, heh, heh." In a very comedic anime style scene, Frisk and Juna fell in shock with a loud thud. Papyrus: "SANS! Be serious!" Clearing his throat Sans continued more seriously this time. Sans: "Now, Teleporting can be achieved in one of three ways, line of sight, marking an area with a marker or tag, or calculating the destination through mental mathematics, and yes knowing quantum mechanics does help." Juna: "Quantum physics, quantum mechanics? We're 11, how are we going to learn that?!" Sans: "Well like I said you don't have to, not unless you wanna teleport somewhere based on a map location that is. Marking and line of sight of the best for newbies, so we'll stick with line of sight for now." The lesson began to start just as Dee swung in. Dee: "What's going on?" Papyrus: "Teleporting lessons, next is flight magic." Dee: "There's flight magic?! I wanna learn to!" Papyrus: "The more the merrier Nyeh Heh Heh!" Dee smiled back and Papyrus and handed him a pouch. Dee: "This is for you, to replace your computer I blasted." Papyrus: "Thank you Dee, but you didn't nee... WOW WEE!!!!" Papyrus's scream draw everyone's attention, turning to see him they saw him trying desperately to give the pouch back. Sans: "What's up bro?" Papyrus: "SANS!!! Dee just handed me a pouch of max G!!" Sans: "WAIT, WHAT?!?!?!?" Rushing over Sans also saw the pouch filled to the brim with 9999G. Sans: "Kid, HOW THE HEEEEEEeeeeee... heck did you get all this G in five hours?!" Dee: "Mass selling Dog residues to Tem Shop. Oh I also got you a present Sans." Handing over the gift box Sans was a bit unsure about opening it after seeing the pouch. Sans swallowed nervously as he untied the ribbon and opened the Box. Seeing what was inside Sans could only do a spit take in response. Sans: "HOW?!?!" Papyrus: "What is it brother?" Sans: "And I thought what they got you was over the top..." Papyrus: "Brother?" Sans: "They got my a set of Temmie armor..." Papyrus: "WHAT?!?!?! HOW?!?!?!?" 

After everyone calmed down from the Gifts, the lessons continued. Frisk was the first to get the magical flow correct, but the feeling of teleporting was hard to imagine and she was unable to pin it down. Juna, having never used magic before it took her some time to catch up to Frisk. As they trained to master teleporting, Dee was training with Papyrus to learn to fight in their human form, as well as trying to figure out how to change back. Papyrus: "Don't worry I the Great Papyrus believe in you, you'll be transforming at will in no time." Dee: "I don't know, we'll still not sure how this happened." Papyrus: "True but that doesn't mean you won't master what ever this is." Dee: "Thanks Papyrus." With that the battle box was summoned, and the training started. Papyrus: "Do not worry we will start off easy, BEHOLD, my lazy attack." Pointing at Dee a small bone very slowly made it's way to them, to which they stepped over it. Laughing at Papyrus joke, Dee accidently Summoned their blaster around their hand and forearm, making it look more like a Mega Buster than a Gaster Blaster. Though it was an accident Papyrus was impressed all the same. Papyrus: "Wow wee, I didn't know you could use a Blaster like that." Dee: "Neither did I, it was an accident." Papyrus: "Well go on, it's still your turn. Try using it." Nodding Dee, aimed the Blaster and tried firing. Not only missing the attack by a mile but ending up on their butt. Dee: "OWWW~!" Papyrus: "Are you okay? That looked pretty painful." Dee: "Pitiful you mean, I've shot elephant guns with less kick than that... Or is it cause I'm a kid again." 

Papyrus: "I do not think it was pitiful." Looking up Dee had a very confused but almost hopeful expression, as if to say "Really, you don't think so?" Seeing this Papyrus smiled and continued Papyrus: " I think it's really neat, I've never thought of using my Blaster like that and neither has Sans... to my knowledge. You can only use one Blaster in your current form, maybe you can try thinking of even more new ways to use them." Starting back up again, this time Papyrus used a normal attack. Dodging the patterns of bones was easy, but jumping over them was a bit harder. Realizing they could no longer infuse magic into their extremities, Dee had to use their wires to get over a string of attacks. Dee: "URHGH! This is so annoying, Why can't I get my magic to flow properly?" Papyrus: "If I had to guess, it is because that "human" body is made of magic. Or it's magic converted into matter for a better defense." Dee was actually speechless, they had a feeling Papyrus was a lot smarter than they seemed, but he was probably as smart as Sans or close to it. Dee: "So what you're saying is that... actually I have no idea what you saying." Sans: "He's saying that like normal body pumps blood, that one pumps magic. Stop trying to control the flow of your magic, and just let it flow by itself." Nodding Dee stopped trying to control their magic and just starting to move. Instantly there was a marked difference, while before they were like a kid running in place at their desk to get time to move faster. Now they were like a kid running outside after being released from school. All the pent up energy they felt exploded from inside charging their muscles on its own. 

Although Dee was moving much better, there was one small issue, Dee's skirt. More then once Dee's skirt was flipped up or flew up due to the movement of battle, leave papyrus flustered. Dee however seemed to be oblivious to why he was getting flustered, or at least didn't understand the embarrassment they should be feeling. Papyrus: "Um, Dee." Dee: "Yea Pap?" Papyrus: "I um, your skirt, it uh..." Dee: "I mean I'm wearing underwear." Papyrus: "Yes I saw, that's the issue! You need to be more self aware, especially when you are female! You should have some shame!" Dee: "I mean I really don't care if you see." Papyrus: "You don't care if people see?!" Dee didn't answer one way or the other, instead they once more tried what they dubbed the Caster Buster. (Named after the Mega Buster, also yes it is a reference to the Mii Gunner) Only to once more be thrown backwards, this time though they were closer to the target only missing by a half mile. 

After training, the group was surprised by some unexpected guests. For some reason Ink and Error had once more decided to visit. Dee: "Ink, Error, how are you both." Ink: "Wow you were right Error, Dee really turned into a human, monster Hybrid." Error: "See I told you." Dee: "Human, Monster Hybrid?" Error: "That right, I finally figured out what you soul is." Dee: "W-what is it?" Asking this Dee couldn't help be get a feeling of dread in the pit of their stomach. Error: "Though my travels through the many AUs, I've seen more then my share of weird souls. But their was only ONE soul that was like yours. That's the soul of..." Before Error could finish, he saw this universes Gaster shushing him from his ethereal form, stopping him in his tracks. Turning to see what Error was looking at, no one saw anything, but that little spectacle did stop Error from finishing his statement. Error: "I guess it's not time for that, huh? Well on another note Ink wanted to ask you something." Ink: "That's right, I wanted to ask you a huge favor. And after arguing with Error the last week or so, he finally agreed." Error: "I'm still annoyed by that dirty trick you pulled to get me to agree squid." Ink: "He, he, he, he, he, he, he. Yea I know, love you Ru, Ru, anyway for my favor... I want you to turn me into a Girl!" Dee: "Wait, WHAT?!?"