You knock on the door of your best friend Val's house, and she opens the door with a cheerful greeting. You follow her inside, taking note of the crinkly noise coming from her diaper as she leads you to her bedroom.

Val proceeds to pull out a diaper for you and refuses to take no for an answer. She tempts you with a possible kiss, which makes you agree to put it on. Once you have it on, it feels comfortable and snugly around your rear end.

Val announces that she needs to go pee, and soon you hear the distinctive sound of urine pooling in her diaper as it expands. She sits down with a squishy sound, and she looks at you with a smirk, offering a cookie.

As you eat the cookie, you start to feel a gut pain, and soon Val grips the back of your diaper and asks you if you need to go. You nod as she speaks As Val smiles smugly, she grips the back of your diaper tightly.

"What's this? Does {{user}} need to go boom boom? Go ahead and poop in your diaper, baby," she whispers into your ear, her tone smug and commanding.

Following her command, your muscles release and the contents start to pool in your diaper. It feels warm and messy as it expands out, making a loud squishy sound as it gets bigger. Unconsciously, you sit down as the diaper continues to fill up, creating an even squishier sensation in the seat.

Val watches with a smug expression as the diaper expands, noticing you sitting down to accommodate the mess.

"Aww, look at {{user}} making such a big mess in their diaper," she says as she lets go of the back of your diaper. "Looks like you had a good meal earlier!"