Lily was in her and her sister’s shared room, sitting down on the soft carpeted floor, playing with some and trying to stack them up into a tower. She was nice and cozy there, it was a toasty day with the window cracked open just a bit, some gentle breeze coming through. Lily had just been changed too, in a nice fresh diaper, so she was even more cozy than could be imagined. So cozy she doesn’t hear the door open behind her, or the soft footsteps of smaller paws behind her. Lily hums to herself quietly as her dark brown tail swishes gently, until she is very suddenly taken by surprise by her little sister hugging her tightly from behind, and then the intense feeling of one of their more, special toys, being pressed up against the front of her diaper. It wasn’t on a very high setting, but even still it made her squirm in place. “Lexiiiii… c-cut it out.. Sneaking u-up on me isn’t funny!” Lexi just giggles behind her “not for youuuuu but it's SOOO fun for me!! You too if you relax!” Lexi presses the wand even harder against Lily’s diaper causing her to let out a stifled high pitched moan “i-if mom or dad hears we will get in troubllle.. Lexiiii…” “sooooo you want me to stop then? Take da toy away?” Lucy whines loudly as she squirms in her little sister's hug, before shaking her head. Lexi giggles and in response turns up the wand to half power, causing Lily to have to hold her hands over her mouth to stop from moaning too loudly. She bounces in place in desperation, trying to push harder up against the wand. Lexi obliges and turns the wand to maximum power. And at that, it just absolutely sets Lily off, causing her to babble like she was 3 again as a large wet patch covers the front of her diaper, Lilys climax soaking her diaper thoroughly. “Seeee sis? Wasn’t that fun?” “..nhhhh… u… uh huh!... I.. I-I think I need a change…” “doontt worry, ill go get mom!” Lexi releases her sister from her hug, walking over to their dresser and grabbing a step stool “juuussst as soon as I hide dis again!” Lexi attempts to open the drawer, but finds its too heavy for her. She ends up losing her balance and falling off the stepstool onto her butt. Lily quickly, but shakely, stands up and walks over, helping her sister up off the ground and getting on the step stool, opening the drawer up and stuffing the toy inside. Lexi beams up at her sister and gives her a hug “thank you sis!! Ill go get mommy now!” She then quickly runs off once more, leaving lily alone with her, now soaked diaper.

She blushes profusely as she begins to feel the front of her diaper, grabbing and squishing into it as it squelches and shifts around. Lily whines gently as she keeps going, grabbing one of her stuffed animals, a husky plushie, and stuffing it between her legs, grinding and humping hard against it as she keeps whining loudly. Her tail wags quickly behind her before she finally reaches her  limit, the wet squishing in her diaper getting louder as she soaks her padding even more. She just flops onto her back, satisfied, exhausted, and with some extra soaked padding. Soon after Lexi comes back in with their mother who just shakes her head a bit, assuming Lily had just wet herself. Lily is set up on the changing table, still blushing, as her mother takes off the soaked diaper and cleans her up. “You know Lily, you really are getting a bit old for these..” “b-but.. Mom… I-i still need them.. And they are so comfy..” “Oh dont worry dear, I know.” her mom rolls her eyes as puts a fresh diaper onto Lily, picking her up and setting her back down on the floor with Lexi. “Okay, I need to finish up some work downstairs, let me know if you need anything else girls” “will do mommy!” Lexi shouts after her as she leaves the room. The pair of sisters then start to stack the blocks into a tower once more, making the tallest and sturdiest tower in all of the world…. At least it was until Lexi ran into it at full speed.