Lucifer yawns as she sat up and rubs her eyes. She had that dream again. A dream where she and Danny got marry and had a few kids. She really did like him. Still, she was trying to make things easier for him. She got out of bed, and notices she was naked.

"I must have taken my clothes off during my sleep." She said before pulling out some clothes.

Once she got dress, she heads downstairs and looks at the time.

'Hmm, Danny is in school right now. Pandemonica, Modeus, Cerberus, Justice, and Azazel have been there. Hmm, I was there before after school was over. But I never seen how the class was like during it was open.' Lucifer thought.

"What are you thinking about?"

Lucifer turns as saw Beelzebub standing on a wall, drinking some morning coffee. Their rivalry has almost become non-existed, but they still fought over things. Mostly Danny when he was not visiting them.

"How long have you been up?" Lucifer asked.

"For a few minutes. I see you're lost in thought. Is it about the mortal we both like?" Beelzebub asked.

"Beel, please. We agreed to not fight about Danny in the mornings." Lucier said, rubbing the bridge of her nose.

"I'm not. Besides, Danny is the talk of the apartment. Even when he's not here. Plus, Judgement has been taking him to the gym. Makes me wonder if he going to cuter with some more muscles." Beelzebub smirks.

Lucifer rolls her eyes. She understands that Judgement is having him train in his human form to stand up for himself, and she was fine with the way Danny was. However, Lucifer did remember what Judgement told her when they return from the gym. Dash was almost fully recovered from his Hell Punishment, but he still hasn't let up on the bullying. Even during his recovery, he would set his goons on him.

Being the devil herself, she was used to seeing others mistreat people, and she usually encourages it. But things were different when it was with someone she likes. She also recalls the rules that the A-Listers told Justice, and how they wanted to treat Danny as he was a nobody. But they all like Danny. He was the one mortal they all wanted to see grow up and live his dream.

"Lucy!"

She was snap out of her thoughts and saw Beelzebub shake her head.

"You really are a lovestruck demon." She said, smiling.

"Inform the girls I'm going to be busy for a while," Lucifer said.

"Oh? Are you going to be busy lip-locking with Danny?" Beelzebub tease.

Lucifer ignores her and heads towards the door.

"I have some devil business to take of." She said before leaving.

Casper High...

Danny sighs as Dash came up and pushes him into his locker again. It was clear now Dash had fully recovered from the Hell Punishment and was back to his old tricks. Once he knew it was safe, he phases out of the locker and headed for his class. As he sat down, he notices that Mr. Lancer was shaking a bit as he enters the class.

"B-b-before we began, I w-w-w-would like to welcome s-s-s-someone to our wonderful school." He shutters.

Everyone was shocked to see a white-hair girl with red eyes, a black and red business, and a pair of horns and tail. Danny was the only person that knew who it was.

"Lucifer?!" He asked, causing many of the classmates to be shocked.

"Wait! Lucifer?! The Devil?!" One student asked, shocked.

Lucifer looks unamused until she notices Danny and smirks.

"Yes, I'm THAT Lucifer. Normally, I wouldn't care about mortals, but I came to check up on one that I'm very fond of." She said, smirking towards Danny.

Danny had no idea what she was doing here. Lucifer then looks past Danny and spotted her two least favorite mortals.

"By the way, Mr. Lancer. You should know that Dash and Paulina have been causing trouble in your school." She said, shocking them.

"Well, Mr. Baxter is the High School Quarterback, and Ms. Sanchez is Captain of the Cheerleading Squad..." Mr. Lancer started to say but was cut by a glare from Lucifer.

"Even so, I do not approve of how those two are treating MY boyfriend." She said.

"Boyfriend?" A student asked.

"I see some of you are forgetful. I mean Danny Fenton." Lucifer said.

"WHAT?" Shouted all, but a few, of the students.

"How do you think Danny got out of Hell? He wasn't supposed to be there, and I let him leave. But not before doing something I never thought would happen." Lucifer said, walking up to him.

"He made me fall in love with him." She added, getting close to his face.

Many students were shocked to hear that, and Danny blushed. Lucifer then smiles, and planted a kiss on him. Danny was shocked as a few of the students jaws drop at the sight. Lucifer broke the kiss, and turns to Mr. Lancer.

"I will be joining your school for the day. Remember, I am the Devil. If I see something I don't like, well...I sure you can guess what will happen." Lucifer smirks, making Mr. Lancer gulp.

Danny looks at Lucifer, wondering what she was up to. She then turns and kisses him again.

Later...

Danny exited his class as Tucker and Sam quickly rush up to him.

"Dude?! Lucifer is staying at our school?!" Tucker asked, shocked.

"I'm just as surprised as you guys are. I'm already expecting the rest of the girls to show up at some point." Danny said, sighing.

"So what do we do? I mean, this Lucifer we're talking about." Sam asked.

"For now, let's make sure no one pisses her off. She not the CEO and Queen of Hell for nothing." Danny said, a bit worried.

While he has gotten to know Lucifer and learn how different she truly was, he was well aware that Lucifer is not someone to mess with. They might be under a deal, but someone has a chance of pushing her the wrong way. Tucker and Sam both nodded. Sam was still recovering from her punishment, and she was trying very hard not to let her jealously show. She felt her heart hurt a little and clear anything thoughts of trying to break Danny up with Lucifer.

"Oh? And what do I see here?"

Danny tries to avoid speaking the phase he knew of and faces his "girlfriend".

"Just thinking of ways of making sure you would enjoy your time here," Danny said.

"I see. I am different from the rest of the girls." Lucifer agrees before leading close to Danny.

"I do expect to have a wonderful time here. We might be under a deal, but I will punish anyone that crosses me." Lucifer said, smirking.

'She really acting like herself.' Danny thought.

"We'll do our best," Danny said.

Lucifer smiles, and gave him a quick kiss.

"I'll follow the school rules, but remember. I am the devil. I won't sit back if I don't approve of things." She said.

Danny nods, and Sam and Tucker look a little worried. Danny took a breath and held out his arm. Lucifer smiles, and took it.

'But for your shakes, Danny, I will not harm anyone.' She added in thought.

As the group walks down the hallway, two people were watching them. Paulina glares at Lucifer, not forgetting what she did to her during the summer. Dash, on the other hand, was still scared of Lucifer. Her punishment for him during his time in Hell was doing labor work. Doing things that he wouldn't normally do. Not to mention every time she turns to look at him, he couldn't shake the feeling that she was going to hurt him.

"Oh, that tramp is going to pay!" Paulina said, angrily.

"As much as I want to help, Paulina, I'm not taking any chances with the devil being here," Dash said, making her look at him.

"She's no one special," Paulina said, rolling her eyes.

"No one special?! Paulina did you not hear what she say in class?! She's the Devil! The real Devil! And she has Fenton as her boyfriend!" Dash reminds her.

Paulina still rolls her eyes. While there was some proof of her being the devil, Paulina was still not going to let her get away with burning her swimsuit. She pays a lot of money for that swimsuit and hopes it would attract the ghost boy. And how her ex-boyfriend broke up with her, for some reason. She turns and saw the four head into their next class and started to think.

"I might have a way to get back at her," Paulina said, smirking.

Gym Class...

"MOVE! PUSH THOSE MUSCLES!"

Lucifer sat in the stands and watches as most of the students ran around the gym. Most of them were almost out of breath after one lap, and the teacher didn't let up one bit. She looks over and saw Danny and Tucker trying to keep up, but they weren't having any luck. She then notices Sam jogging up to them, with a proud smile on her face. Lucifer rolls her eyes before seeing Dash pushing Danny and Tucker out of his way. Narrowly her eyes, Lucifer snaps her fingers, and had a banana peel appear in front of Dash. Dash didn't see it and slips on it, crashing into the wall. Causing everyone to stop and laugh at him.

"Enough!" Ms. Tetslaff yells as she picks up the banana.

"Now, who threw this banana?" She asked.

"I did."

Everyone turns and saw Lucifer leading back on the stand. Ms. Tetslaff narrows her eyes and walks up to the stands.

"Care to explain why?" She asked.

"Easy, Dash had knocked down Danny and his friend. So, I decided a little payback was in order. Since I can't really hurt him, I went with a harmless prank I can think of." Lucifer said, smirking.

"I, for one, don't find that funny." Ms. Tetslaff said, marching up to her.

"Oh boy," Danny said, worried.

Lucifer could see that this woman was raised to be tough and strong. She was familiar with those kinds of people. But sometimes, big and strong is not enough. Lucifer leans back, and lets the gym teacher say her piece.

"If Mr. Fenton and Mr. Foley work out more, then a push wouldn't have knocked them to the ground. I have already put them in a training with Mr. Baxter and Ms. Manson. But can see that they forgot it." Ms. Tetslaff said.

"Did they? Or are you overlooking that Dash pushes them on propose?" Lucifer said.

"What did you say?" Ms. Tetslaff asked, glaring at her.

"Yep, I can see it. You are one of those people that loves pushing people because you think they could be better. But you are overlooking how some of them are not built in the same way you are. Danny is already hitting the gym with one of my friends, and she's making sure not to push him so much. After all, we like him for the way he is." Lucifer said.

Ms. Tetslaff didn't like her attitude and grabs her arm.

"Well then, let's see how the principal feels about this!" She said.

"Bad idea!"

Ms. Tetslaff turns and saw Danny flinch as he once again voiced his thoughts out loud.

"Care to say that again, Mr. Fenton?" She asked.

Lucifer could see that Danny wanted to, but he didn't want to get into any trouble.

"What he means is that the principal is fully aware of who I am and what I can do. Besides, I'm not even a student of the school. " Lucifer said.

"Then why are you in my class?" Ms. Tetslaff asked her.

"Because I'm visiting my boyfriend. Plus, I already promise to stay out of the way. Unless, of course, Dash chooses to ignore what I can do when I can clearly see everything." Lucifer said before smirking at the A-Lister.

Dash gulps and backs away. He was not going to deal with her again. Lucifer then grabs Ms. Tetslaff's hand and pulls it off her.

"One more thing, You should pay more close attention to who and what I am. As part of my deal, I can't hurt you without reason. However, there's nothing about me using my powers to defend myself." Lucifer said, letting go of her.

Danny took a breath as Ms. Tetslaff decide to leave her be. However, Danny was still afraid of someone pushing Lucifer the wrong way.

A bit later...

Lucifer sighs as she wishes she had a glass of wine right now. However, she was not allowed to drink in school. She already promised that she follow the school rules. Lucifer also agreed to wait outside of the locker rooms as the students had to change and clean up from the tough workout.

"So, what brings you out here?"

Lucifer turns and saw Paulina walking up to her, wearing her cheerleading outfit.

"I can't enter the men's room. I might be the devil, but I already promise Danny I won't do anything." Lucifer said, already having a feeling something was up.

"I see. Well, we just finished Cheerleading, and we're about to hit the showers. Want to join?" Paulina said, then asked.

Lucifer could tell something was really up now. However, she did think about it. She did want to smell nice to Danny, and maybe a quick shower wouldn't hurt.

"Very well," Lucifer said, following her into the woman locker room.

Paulina leads her to the showers and saw many girls cleaning themselves. She watches as Paulina took off her cheerleading outfit before turning on a shower. Lucifer sighs and took off her suit. Paulina turns, hoping to embarrass her but was shocked to see her body. Lucifer's body took on an hour shape, and her breasts were a size D, twice as big as Paulina's. Lucifer folded her suit, and set it to the side. However, she gave a quick glare at anyone that would try to take her suit. Lucifer finally took off her crown and set it on her suit before walking up to an empty shower stand next to Paulina. Lucifer turns it on and lets the water rinse her off. The water felt nice, and she just stood there for a few seconds.

"Here."

Lucifer look surprise as a bottle of shampoo was placed in front of her. She looks at Paulina before taking it.

"Thank you," Lucifer said, already knowing she did something to it.

Paulina nods and faces away from her. She smirks evilly as it wasn't shampoo she gave Lucifer. It was red hair dye. It should be enough to get back at her. However, what she didn't know is that Lucifer saw through her plan and quickly switches shampoos. Lucifer washes her hair and saw Paulina do the same. After finishing, Lucifer turns off the shower and dries herself off. Another girl offers her to use her hair dryer, and Lucifer senses no mischief from her. After drying her hair and putting her suit back on, She thanks the others for letting her join them, and walks out of the locker room.

"Lucifer?"

She turns and saw Danny, who was shocked to see her walk out of the locker room.

"Hello, Danny. I was invited inside for a quick shower. The students in there made me feel a bit welcome. One even offers me her hair dyer." Lucifer said.

"Well, you do smell nice," Danny said, blushing.

"Thank you," Lucifer said, kissing his cheek.

Danny blushes, and was about to say something when a loud scream was heard. Everyone watches as Paulina runs out, her black hair was now red.

"WHO DID THIS?!" She screams.

Lucifer smirks and steps up.

"I do thank you for inviting me for a quick shower, but here's a little advice for next time," Lucifer said, smirking.

The smirk faded and a frown appears, with her eyes glowing red. Paulina backs away as Lucifer steps up to her as fingernails growing longer.

"Try to prank me again, and next time I won't just switch our shampoos." She said in a demonic voice.

"Prank?" Danny asked, confused.

"Oh, Paulina here hopes to have my hair dye red or pink will get back at me for her swimsuit during the summer. Too bad I can sense mischief from others." Lucifer said.

Danny could only sigh as Paulina rushes back into the locker room, hope to dye her hair back.

"Even if I would let my hair be dye, I wouldn't be ashamed of it." Lucifer smiles.

Danny could only sigh as both he and Lucifer head for his next class.

And that ends this chapter. I did get everyone's ideas, and I will think about using them. So, thank you all for the ideas. Lucifer shows up at Casper High, and made both Dash and Paulina pay for their actions. I was taking a long break from my stories, and I was also having a bit of trouble deciding what story I wanted to update. In the end, I decided to update this story for now. What next? I need some time for that. I will think on the ideas you all gave me. So it might be a while.