Sleepovers with Squids and Bunnies

You'd started getting a lot closer to your 'big sis' Yagyuu over the past few months. You would both hang out after school on a near-daily basis, often going out to the shopping district or, rarely, back to Yagyuu's, Hibari's, or your house. However, in what you considered to be a big step for your relationship, Yagyuu suddenly invited you to a sleepover with her and Hibari. Now, here you were, palling around in her familiar bedroom with the two of them.

You'd left your house not long after dinner, taking a backpack with some little things like a toothbrush and your pajamas, and arrived roughly ten minutes later. Knocking at the door, Yagyuu greeted you after a short wait, already in her squid-print pajamas. Walking inside, you were brought to her room, where Hibari was waiting, evidently having supplied the snacks for the sleepover, since there was a huge pink bag resting near the bed, overflowing with sweets. Hibari bounded up from her seat near the bag and pulled you into a serious bearhug. "Hi, Anon! Feel free to dig in!" she said as she motioned to the sweet-bag. Hibari was wearing bunny-print pajamas, similar to Yagyuu's, making you feel out of place in your regular clothing. Excusing yourself for the restroom, you left the bedroom, bringing your backpack with you.

Inside the bathroom, you quickly changed out of your everyday clothes and slipped on your pajamas: a pair of sleep pants and an old t-shirt. Making your way back to Yagyuu's bedroom, you realized that you hadn't seen her parents at all since you walked through the front door. You decided to ask her about it as you entered the bedroom.
"Hey, big sis, where are your parents?" The eye-patched girl shot up from her position in front of the sweets-bag, the candies that she had dug out and put on her lap spilling onto the floor.
"T-they're out. On business. They'll be gone for the weekend." Nodding your head, Yagyuu knelt back down to dig through the backpack again as she saw that you were satisfied with her answer. Sneaking by Hibari, who was munching away on the snacks she'd grabbed earlier, you started to look through Yagyuu's aquariums, taking in all of the many little aquatic creatures she had. The scope and size of the tank and the variety of fish and cephalopods she had overwhelmed you, though not for long, as you felt someone tapping you on the shoulder.

Turning around, you came face to face with Hibari, who had a candy bar shoved in her mouth, and likely a variety of other kinds of candies, and was offering you a candy bar of your own. "Cmnn, Nnon! Dhgh nn!" she muffled as she turned back towards the back, joining Yagyuu in rummaging through it for their favorites. On her end, Yagyuu was carefully managing a pile next to her of her favorite candies, though you noticed that she was putting back any extras that she had grabbed as she continued to dig. Shrugging, you quickly hopped down next to the girls and started tearing through the pack, determined to find some candies before they snagged them all.

All three of you were practically bouncing off the walls not long after you'd finished with your snacks. Desperate to burn off the sugar-energy, you started playing games with the girls, starting with a simple word-game, before eventually you escalated into full-blown hide-and-seek. Of course, it wasn't that difficult to find out wherever one of you were hiding, since all three of you could barely sit still for more than a few seconds, and you all wouldn't stop giggling, no matter what you tried.

Eventually, you all felt the sugar burn itself out of your systems, and the need for sleep reared its ugly head as you, Hibari, and Yagyuu dragged yourselves back to the bedroom. Shambling out of the bedroom and to the bathroom, you brushed your teeth, making sure to get the remnants of the candy out of your molars, and made your way slowly back. Yagyuu was next, slinking out as you and Hibari sat on your respective beds, your heads bobbing up and down as you struggled to stay awake. After an eternity of waiting, Yagyuu returned, and Hibari slowly dragged herself out of the room as Yagyuu sat down on her bed, evidently holding up better than you were. Flopping back on your inflatable bed, you started to relax and felt sleep starting to claim you. Before you passed out, you thought that you should tell Yagyuu something.
"Thanks for inviting me, big sis...I've had fun," you said, feeling yourself start to slip away and into your dreams.

"Hm...thank you for coming, Anon," you heard her say, softly and quietly.