Laura has had plenty of accidents by now. More diaper changes than she can count. For a second, she tries to count them, but when she realizes that she can't count higher than ten right now, she stops to avoid upsetting herself. The point is, Laura is an expert at using a diaper. On accident. She hasn't done so on purpose. Yet.
Laura pushes down. Her bladder lets loose with a soft hiss, but that's not what she's aiming for. She pushes harder. A small fart escapes. It's closely followed by a thunderous exit of the contents of her bowels. The back of her diaper is now filled with poop.
"I poo-poo," Laura announces. Anna sighs.
"I guess I can change you in the bathroom really quick..."
"No! No change here!" Laura says, switching to toddler tantrum mode. "Change home!"
"All right, all right! I'll just have to get you two some treats another time," Anna mutters. She takes Laura and Kaitlin back to the car. When she's buckled into her car seat, Laura moves her butt around, smushing and squishing the mess in her diaper, giggling at the fun.
Anna starts the car. Kaitlin leans over to whisper to Laura.
"You did that on purpothe for me, didn't you?" she asks. Laura nods. "Thankth. It meanth a lot you did that. I bet it wath bad."
"No prob," Laura chirps. She keeps to herself her true feelings about what she did. It was far from gross or unpleasant. It was...really fun! Laura liked messing herself on purpose.