Imagine being Tony's sister and secretly watching over the tower with the avengers but decided to start pranking them till one of them catches you and brings you to them.

Fandom: Marvel
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We all know tony can trust his team with the tower and save the world while he was away for a 2-week holiday with pepper, but he didn't trust them with J.A.R.V.I.S. so he hired the help from his sister to secretly live in the tower to make sure J.A.R.V.I.S. hasn't been tampered with till he got back but that didn't last long.

after a few days, you had been watching the avengers live their life and it got boring so I activated J.A.R.V.I.S. to only obey me so that they can't use it unless they are going to talk to tony or nick fury.

since you had to be quick cause they had a meeting in the living room I went to the kitchen and started small by swapping the sugar with salt and vice versa while J.A.R.V.I.S. was talking in my ear about how cruel it was but also kept an eye out for the avengers in case they were finished. once you were done you headed to the elevator and headed down, but Steve noticed the lift going down when everyone was with him.

"Did anyone see that?" Steve asked confused staring at the elevator in confusion but curious.

"See what Steve?" bucky asked looking at him then the elevator for a few second then back at him.

"The elevator is going down, but everyone is up here" he spoke in confused.

"it's probably nothing Steve let's just have some coffee and play games" bucky spoke with a shrug before going into the kitchen and bucky starts to make him and the team some coffee but Bruce and Tasha got it easy cause they had black coffee but worse for bucky since he has six sugars.

once they were made, he handed them out and they all take a sip splutter it all over Tony's pine table and they all groan in disgust as they all pour it down the sink and went to make a new cup "what the hell bucky this taste horrible" Steve said in disgust as he looked at his friend who hasn't sipped his cup yet because he was added syrup in since tony introduced him to it.

"I don't know how I put in the right stuff and put sugar in," he said showing him the container which he inspected and tasted before spitting it out in the sink.

"This is salt who the hell put salt in the sugar container," he said before talking gulps of water and spat it out before they all got in an argument about it. meanwhile, you were downstairs laughing at the scene before you but sent it to tony since he asked for an update despite him being two days already.

as the days went by I had pranked the team one by one but you were weary of bucky cause he never kept to a routine but everyone else did but you started with Steve at first by changing all of his American style belongings in his room all hydra style with red and black post-it notes since it would've been safer than using paint on it which caused a family discussion which was Steve ranting on about what had happened to his room

next, you went to Tasha which was a challenge but what you did was hacked into her phone and sent random texts to the team some were teasing them to the point where they couldn't look at her without thinking something else and sending her random alerts to go to see nick about missions for the team or herself some were real, and the rest were fake.

at the end of week one, you decided to end off the first week with Thor and I know what would've been good to do but when I tried to pick up the hammer I moved it a bit but not enough for what you wanted to do so what you did was hide his food mostly pop tarts to Bucky's room since he loves them more than he does but when you left his room to go back to the garage again to plan another attack on them you stealthily headed to the elevator but I should've timed it better when I see bucky leave it and we both froze as we looked at each other.

you both stayed like that for a small while before you started to make a run for it in the other direction but bucky ran after you and caught you, you struggled a bit as he took you to the lounge where everyone was there doing a meeting.

"Does anyone know this little brat and how long she has been here?" he asked causing all the faces to turn to him as you struggled against his grip.

"Let me go fossil" I groaned a bit as you struggled more but Steve walked over to you, and I glare at him.

"Well tell him to let me go capsicle or do I have to phone your boss and tell him how you're treating me" you growled at him annoyed as you glared at him threatening to phone tony and tell him what has been happening, but you already did after each prank since he was interested in them as much as I was.

"Who are you and what do you know?" he asked trying to pry information out of you.

"None of your business I have much of a right to be here than the rest of you and I can get you all kicked out if I so damn please" you growled, and he looked in confusion turning back to the team and then back to you but when he did you head-butted him and kicked buckys privates causing him to let you go so you backed away from them.

"Look I've had my fun but until tony gets back this is my building and I say leave me alone or you all will be kicked out," I said looking at them before walking out.

"Why would tony care if we hurt you? you're just a girl who hid away in his building you're more likely to be kicked out than the rest of us" Thor boomed with a loud chuckle causing you to stop at the door and turn back to them.

"I am Alice Harley Stark and when tony is gone from this place I have full authority of whatever company and the building he owns till he gets back and if you did dare hurt me tony would kill you so don't even think that you have more power than me your highness" you spoke out proudly but when you were done you bowed at him before walking out and headed to my room which was the whole of the 20th floor along with your garage style office like Tony's but most of the room was gone due to having your bathroom, bedroom and kitchen there so you didn't have to go upstairs and use theirs.

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sorry for the bad ending but I didn't know how to end it so here we are I hope you like it.