Seriously, that little conversation between Wanda and Vision in Civil War was just BEGGING for a backstory. This probably won't be a super long one, a few chapters at most I think but I thought it would be interesting to see what led to Wanda Maximoff having to teach Vision about personal space.

"Vis, we've talked about this."

"But- the door was open so I thought.."

Even in her rotten mood, Wanda Maximoff smiled at the memory. Vision might be an omnipotent being, but he was completely clueless when it came to the nuisances of personal boundaries. Curled up on her bed and laying in complete darkness, she wondered if he might repeat his earlier mistake. Part of her even hoped he would.

The nights were the worst. During the day, she could keep busy. Chat with the other avengers, practice using her telepathy, spar with steve or write a letter to Clint. But at night, while Tony spent hours on end in his lab and Vision simulated sleep, the memories were a torment that refused to ease. If she closed her eyes, she could conjure up an image of her brother, but the thought of him alone often hurt enough to send her telepathy spiking. When that happened, all sorts of things could be damaged unintentionally. She'd already caused a small earthquake, projected nightmares at Tony, accidentally shocked Vision and broken enough glasses and windows to fill a small boutique.

For weeks after Pietro's death, she'd kept to herself. Sleep only came when her body had forced itself to get rest after being up for days on end. Clint looked after her, had even brought her to his farm where she actually could breathe, but her mourning was all consuming and her grief forever changing the girl she'd been.

Because of this, she hadn't often gone out of her way to try and build friendships. Black Widow seemed to accept her because of Clint and Steve was a sweetheart to everyone. Working with them, training hard to make something of herself, to be the hero Pietro had died as, was what kept her going.

Maybe it had been this sort of loneliness that led to her relationship with Vision. For as smart as they both were, as powerful and battle ready, in some senses they were still only children. He quietly followed her about Avengers Tower, always there but never in the way. Having had Pietro by her side everyday of her life,the comfort Vision's silent presence gave was immense. It filled in her cracks enough that she could function, even smile again. The pair was never too far from one another and that was just fine with Wanda.

Of course, in hindsight, that was probably why the issue of privacy became such a big deal.

Having just finished up a sparring session with Natasha, Wanda was eager for a hot shower and an afternoon nap. As soon as she got to her room, she stripped down, breathing a sigh of relief as she pulled away clothes sticky with sweat. Shivering happily in the privacy of her air conditioned bedroom, Wanda had just grabbed herself a fresh towel when a voice behind her made her jump.

"Miss Maximoff, I am pleased to find you in your quarters, I wondered if you might be able to- Oh. I've interrupted something?"

Beet red and scrambling to get herself covered, Wanda used her telepathy to throw a tee shirt at Vision's curious gaze. "Vision! You- what in the hell do you think you're doing?! You cannot- I'm naked." She hissed,wrapping her bedspread around her body. His head poked through the hole of the tee-shirts opening, eyes all innocence and plainly confused.

"Were you engaging in sexual intercourse?"

"What?!"

"I note that your breathing is rapid, your cheeks flushed and you're nude so I assumed-"

"God I- No."

"It's a normal human behavior and I've noted your fond familiarity with Captain Rogers-"

"Vision that- Steve is... No. No, I- I was preparing to take a shower. I've just come from training with Natasha."

He considered this, eyes flitting back and forth as he went through the memories filed away in his mind and nodded in understanding.

"Because your skin exudes sweat to cool itself when you exercise, you now must cleanse yourself to rid it of the oils left behind and soothe aching muscles. I understand. I will ask for your assistance at a more convenient time." He disappeared back through the wall, leaving Wanda to gape behind him.

And that was only the first time.