Big Sister/Little Sister (Private)

[PeculiarChangeling]

Jenny whistled her way across the parking lot towards the elevator. An eight hour road trip hadn't been exactly "Fun", but now that she was at her destination she'd be able to kick back for a couple months over summer break.
It wasn't her ideal summer break, either: She'd been planning on touring Europe with friends, but that had fallen through at the last minute, so instead she was visiting her pushover of a sister. It was great: She'd have absolutely no responsibilities and free rent, so she could just hit up bars and guys for a couple months. (It wasn't like Melissa ever brought anyone over, anyways.)
The music her sister had provided was good, too, though for whatever reason she couldn't remember any of it.
Weird.

She hopped in the elevator, riding up to her sister's place. After the drive, she needed a bathroom something fierce, so she hurried over, backpack in tow, and pounded on the door. "Hey, sis, lemme in!"

[Kareoko]

Melissa heard knocking at her door and walked over to the peep hole to see her 'big' sister Jenny. She used that term loosely as she was way taller than her older sister.
"Hey there 'little' sister! What brings you over to my place?" She laughed as she teased her sister through the door.

[PeculiarChangeling]

"I'm three years older than you," Jenny growled, already annoyed. It didn't matter if there was over a two foot difference between them, she was the big sister, not Melissa.
"The drive was nice too, thanks for asking," she added, setting down her backpack containing all her belongings and glancing around the small but clean and cozy apartment.
"Man, what a dump. Couldn't find anywhere cheaper, I take it?"

[Kareoko]

"Eh, I like it, what's wrong? Not up to you spoiled brat standards?" Melissa chuckled as she patted her sister on the head.
"Alright how about I make something to eat, and since your my guest you can choose 'little' sister!" Melissa smiled as she walked over to the kitchen.

[PeculiarChangeling]

Jenny rolled her eyes. Clearly, Melissa was just trying to get to her. Jenny could be the bigger woman, though, and not rise to the challenge.
Or, on the other hand... "Just make whatever, I don't care. You have a bathroom here, or is it just customary to piss on the floor? Judging by smell I can't guess one way or the other."

[Kareoko]

"Down the hall to the right, but if you pee on my floor you're cleaning it up!" Melissa smirked as she found a frozen pizza in the freezer and placed it in the oven.
"Pizza should be ready in 20 minutes sis!" Melissa shouted as she sat down on the couch in the living room and proceeded to turn on the TV.

[PeculiarChangeling]

(Since we haven't canonized any trigger words yet, I assume you'll tell me as they come up?)
"Whatever," Jenny shouted back, taking the opportunity as she walked to the bathroom to peek around and look in Melissa's bedroom. It got on her nerves that her stupid little step-sister was so much bigger than her, but at least Melissa's apartment was smallish and mediocre, and Jenny's career was going to be way better than her sister's once she got out of college.
Taking the first door on the left instead, she cracked it open to peek inside.

[Kareoko]

(Yes I will, but let's build up to it.)

Melissa smirked as she's always hated her older sisters bratty attitude, she had recently been working on some experimental music which she planned on using on her sister tonight.
"You done peeing yet? The pizza is almost ready!" She shouted.

[PeculiarChangeling]

Taking a quick glance around her sister's bedroom, Jenny was disappointed to find everything was all neat and tidy. Sighing, she ran to the bathroom, did her business, and hurried back to the kitchen, zipping up her tiny jean shorts.
"So, how's my little sister doing, anyhow?" She asked, putting emphasis in "Little". A thirty percent height different between them be damned, Melissa was the little sister. "Still no boyfriend, I assume?"

[Kareoko]

"I don't like to talk about that stuff Jenny!" Melissa blushed as her sister knew she was sensitive about how men were mostly scared by her tall and slightly muscular stature.