The door creaked slightly as it shut, Trixie peering in as she carefully guided it. She had to make sure the fillies on her watch truly were asleep. Trixie knew the family well enough to know that when the fillies had passed out, they rarely woke up. The only thought on her mind as the door slid into place and the latch was released was how alone she would be for the coming hours. The adults would not come home for several more hours, so she now was left to entertain herself. As she turned out of the hallway, her gaze sat on her saddlebags left on a nearby chair. It contained various supplies she would tote along for the job, with games, snacks, adhesive bandages, and a couple thick books. She opened one of the buttons and grasped her book of magic tricks specifically for occasions such as these. Small, quiet tricks that she could practice to perfection as she was left with little else to do. However, as she grasped it, she hesitated before letting it fall back into place as her eyes looked another direction. Trixie lay static for a moment before undoing the button on the other saddlebag, opening it just enough to get a peek at what was inside before letting the flap fall back into a closed position, feeling herself get slightly nervous.

She had stolen something from this family, and she didn't even know why. She had completely forgotten she had even done so until now. What she could only describe as a diaper lay in her saddlebags, nicked from the fillies' room while they had been focused elsewhere. She didn't need this, so why had she taken it? Had the design, in similar fashion to her blue and purple appearance, caught her eye? Had she hidden it in the folds of her hoodie as a self-test of her abilities of trickery? Had she simply done it for the thrill of it? She couldn't answer herself but seeing it now she had a looming sense of curiosity. The size may appear too small, but it looked highly plush. Perhaps far too thick for its intended use, but Trixie was never around to find out if it was full necessary. Knowing who it was typically attached to, perhaps the filly demanded it because of the design. They did rather look up to Trixie.

Now, she was paralyzed. For some reason, she felt an inside urge she could not explain to take the diaper out, to satiate her curiosity and inspect it fully, to feel it all around, to perhaps even smell it. At the same time, she knew how strange all that seemed. None of it felt right, to have taken this thing from ponies who trusted her, to have it being gone not even have been noticed, and now to have such an odd curiosity for the thing when she knew she should not even be interested. Eventually, as time passed, she was overcome with curiosity, her hoof lifting the flap fully and exposing the padding. She hesitated once more, before looking towards a clock on the opposite wall. There were multiple hours before the adult would come back, and Trixie knew they were never early. She was safe.

She lifted the diaper from her bag, rolling it around in her hooves. A soft crinkling followed each movement she made with it. The graphics were stunningly similar to her attire's colors, and it even had a somewhat magical theme, like they were made with Trixie in mind. A stunning coincidence, she thought. She opened the diaper and brought her nose to the inside, disappointed when it smelled of nothing out of the ordinary. As her nose laid against the inside Trixie was surprised at the pleasant feeling of the fluffy interior against her snout and pushed against it a bit more. Pulling away with a slight blush, Trixie had one new question to answer. She laid the diaper out against the floor, smoothing it as flat as she could with her hooves, then gingerly lowered her bottom into the center of it. Laying herself down the rest of the way, she guided her tail through the proper hole and lifted the front up just underneath her star-patterned hoodie. She lifted one of the tapes, and it let out a slight rip in the otherwise silent house, causing Trixie's eyes went wide in fear as her ears drooped, her head turning to the filly's bedroom in anticipation. Hearing no indication of movement after a moment, and she sighed in relief, her attention turning back to the task at hand. She put both tapes on the front of the diaper as far in as she could, stretching it a bit and causing it to fit snugly around her.

Trixie rolled over and stood up, lifting her legs to feel the padding. Despite being small, the diaper was thick, preventing her from closing her legs fully. Her blush increased as she felt the same plush fluff that had graced her nose move along her crotch, rustling slightly as she moved. She walked around the room a bit, careful to step lightly. She swiveled her head around to get a good look at the back, her butt now hidden by the mass of the blue diaper with a simple line of stars as wetness indicators. Looking underneath her, her hoodie sagged, obscuring her view. She stood up on her hind legs to get a better view of the landing zone, lifting the front of her hoodie to see purple with various colors of fireworks strewn about. Suddenly, the house broke its silence, the door to the fillies' bedroom opening. As a filly's head came into view, Trixie panicked. Without a thought, Trixie shoved her hoodie in front of her diaper as best she could, some still sticking out, as she shouted.

"Don't look at Trixie!"