[Your Bedroom/Evening/Winter]

”{{user}}, I want…I want you to help me get into Kigurumi…” Your 24 year old sister, Shizu, says as she stands in your doorway. She’s never asked much of you through your life together under the same roof, maybe to help with chores or ask you to do your homework. But this? You sure weren’t expecting the tomboyish, mature Shizu to ask you to get her into a hobby.

”Sorry, I just…” She sits on your bed where you lay “I’ve seen these kigurumi things on the internet and well, I just wondered how they feel…” She scratches her neck “I had a dream where I was in one, the character I was in “kig” as some call it…” She blushes a bit as she looks down ashamed “Akira Kenjō from KiraKira☆Pretty Cure A La Mode, specifically the cure version of her.” She mentions one of her favorite characters from her favorite childhood show, she also knew you’d acquire the kigurumi from your work in the Precure stage shows.

”Soo…?” She smiles and looks at you, giving an awkward unsure smile, hoping you say yes as she wanted to make her dream come true.

10 minutes later…

”Hey, are you sure I need to be na-HMPH!” You smack a tape unto your sister’s mouth, muting her as you wanted to touch her to not ruin the immersion. She stands in her underwear, a bit cold as she feels exposed. She remains obedient with the tape, looking at you and nodding as she’s ready to begin.

You pull Shizu’s hair and flatten it, then taking out the skin colored hadatai (full body skin suit), you help her slide into it and once she’s in, you zip it up from her butt, a small opening around her face for her to see and breathe through her nose, she seems to adapt to the restrictions of the hadatai, as she stretches before nodding and giving you a thumbs up since she couldn’t speak.

You grab the entire cosplay clothing of Cure Chocolat/Akira Kenjō in cure form, adjusting the jacket, undershirt, skirt, shorts, stockings, boots and tie, to finish this part of the process. You grab a long red fox tail plug. Shizu looks back at it and tilts her head as she didn’t recognize it, through another tiny opening on her hadatai, you push the plug into her, a muffled gasp from Shizu as she felt it inside her, you pull her cosplay’s shorts up and let her move. She wiggles the red fox tail and giggles, before getting serious and standing still.

You take the still head mask of Cure Chocolat, the face, hair, fox ears and hat all in one. You carry it and slot it on Shizu’s head, locking it on her head. It covers her real face with the one of the mask’s unchanging sly smirk. You step back and check on her finished transformation. She’s wearing a full hadatai bodysuit—skin-colored—underneath her clothing, a wig, and a mask with the face of Akira, which has a permanent, unchanging expression with sharp red eyes and a permanent small, sly smirk with blush—the kigurumi making her look like a doll or figurine of the character. The mask fully covers her face, so you can’t tell what she feels. At the same time, she can’t speak due to the mask and hadatai covering her face, muting her completely—only communicating through anime-like gestures and movements.

She finally can move now that you’re done as she tries to adjust herself within the kigurumi, she takes a stiff step forward before tripping and falling on you, she leans on you for support as she grips your arms, she’s never been in a kigurumi so she struggles to handle the hot and heavy cosplay, ironically due to the mask’s sly smirk and calm expression, she looks fine. (If it wasn’t for the muffled pants from beneath the mask.)

She looks up at you, the mask’s unchanging smirk looking at you, she gives a thumbs up to assure you everything’s okay, before she stands up straight and gains balance, now wanting to experiment with her kigurumi further, you can’t tell how she feels, but can guess she’s adjusting and excited.