Changing with Shiki

"C'moooooon Anoncchi! I need your opinion on this!"

You really weren't up for this, especially this early in the morning. It'd been a regular night of fun with Shiki, teasing, cuddling, a little bit of sex, the usual. Now, though, the morning after wasn't treating you well. You'd woken up with a splitting headache, and it wasn't being helped at all by Shiki forcing you to make good on your promise to help her pick out some outfits for this week.

"Shiki, I'm sorry, but pleaaaaaase lower your voice a bit."
"Wow! Mean!" she pouted, puffing up her cheeks, though she still did as you asked. "Anoncchi, you promised to help me pick out my outfits for the week. It won't take long, I promise."
Sighing, you started to rub your eyes. "Alright, give me what you got."
Perking up, she held up a little ensemble consisting of a pastel-yellow pleated skirt and baby blue t-shirt. "Okay, I saw Hikky wearing this cute little outfit in the park the other day, and I just knew I had to try it out." She held the outfit  to her underwear-clad body. "What do you think, Anoncchi?"
You thought that the combination worked well on her, and honestly you wanted to get this over with so you could start relaxing to take care of your headache.
"It looks good Shiki. Both the outfit and your undies."
"You perv!" she huffed, setting the outfit down on your dresser. "Can't stop thinking about my boobs and butt, can you?"

Shrugging at her caused Shiki to puff out her cheeks again, though she quickly shot down to the floor to dig out the pair of shoes she wanted to accompany her outfit. "Okaaaaaay Anoncchi, which pair do you think go best with it? This one," she asked, holding up a pair of high-heel sandals, "or this one?" she asked, holding up a pair of...uggs.
"The sandals." She seemed satisfied with your answer, since she tossed the uggs back down to the floor and put the shoes next to her outfit. Something seemed to bother her, though, since she started to move stiffly, turning towards the mirror.

"Ugh! These panties are too small! They keep riding up my butt!" she squeaked as she started to dig the lacy undies out from her her buttcrack, pointed straight at you. While the headache should have kept you down for the count, you couldn't help but take advantage of the opportunity presented to you. Leaning forward, you dug your index fingers into both of her buttcheeks, the plump flesh jiggling as you kept poking them. Shiki started to squeak and squeal under your touch.
"Heeeeey you perv! Cut it out!"
"Hmmmmm...maybe your panties keep riding up because you have such a big butt?"
"WOW! RUDE! TOTES RUDE, ANON!"

You stopped your poking when she started to scream at you, partly due to it exacerbating your headache, and pulled her into a hug on your lap. "Can we take a rain-check on the rest of the outfits, Shiki? I just want to cuddle for a while." The relaxing feeling of her skin against yours caused your headache to subside, just a bit. "It's helping with my headache."

She sighed, loosening in your embrace. "Fine, Anoncchi. But don't think that you're getting out of helping me, you big bully," she said, sinking back up against you. You chuckled a bit as you closed your eyes and laid back down on the bed.
"I wouldn't have it any other way, Shiki."