WARNING: SPOILERS!!! ~A Watty's 2019 Submission!

Saved for Karina Potter, Aunt Marauder

"Aunt Karina, do we really have to go?" Harry asked. She nodded.
"Harry, no matter what they may say, everyone knows of your mother's relations with the Muggles, and this is just a safety precaution. Don't worry, they're not coming with us. Hestia Jones and Dedalus Diggle are coming down to take them to a location that I am unaware of myself. They'll protect them." Harry was still apprehensive at meeting his mother's sister and her family.
The Order, despite what Karina had told them, had thought it best to keep an eye on Lily's sister, Petunia, her husband Vernon, and their son Dudley, just in case they had any information on Harry. Harry had never met his other aunt, but he'd heard awful things about her.
When they reached number four Privet Drive, Harry saw a rather beefy man pulling bags out of a car. Karina sighed as she climbed out of the "borrowed" Ministry car.
"Vernon, what are you doing?" She asked. The man, Vernon, glared at her with beady eyes.
"You! I'm not going anywhere, you wretch! This is just a ploy to get my house!" Karina scoffed.
"Please, what would I want with your bloody house? I have my own house! My husband left it for me and Harry! This is only a safety precaution." Vernon's face turned red.
"Where's the boy?" He demanded, shaking a bag around. "Don't tell me you've brought him along with you!" Karina took the bag and set it on the ground, waving to Harry through the window to come over.
"Well of course I did! Do you honestly think that I'd leave him at this time? And anyways, I thought it decent for him to meet his mother's sister at least one time before they never get the chance to see each other again!"
"Decent!?" Vernon blurted. "I'll show you decent! Let's start with not disturbing us here at home and saying we need pick up and move at once!"
"Vernon? What are you shouting at?" Then a thin blonde woman with a long neck peered out, and she screamed. "Oh my god! What are you doing here!?" Karina sighed.
"Nice to see you too, Petunia." She muttered, putting her hands on her hips. "Its been a while. I only came to see you three off and for Harry to properly meet you." Harry came over and stood closer to Karina, a little nervous. Karina peered inside the house from where she stood. "So, um, where's Dudley?"
"H-h-he's getting his bag." Petunia stuttered, just as a large boy with blonde hair and a leather jacket appeared at the door. Petunia went to him and pushed him forward. "And speaking of my Dudley, here he is! Say hello to your Aunt Karina, Duddy-kins!" You could painfully tell that she was trying to be nice so that she wouldn't get cursed.
Dudley looked at Karina strangely, then gave a small wave. "Hi." Karina smiled.
"Hi, Dudley. It's nice to finally meet you. And this-" she nudged Harry. "Is Harry. Your cousin." Harry gave Dudley a small wave back.
"Hi." He said awkwardly. Karina wasn't sure what to say, since this wasn't quite what she expected.