Use your diaper.

You said you would be a baby with her and babies mess their diapers.

With a resigned sigh, you push and feel the poop fill the seat of your diaper. It spreads up the back and between your legs, the padding holding it against your skin.

Sarah knows exactly what just happened and takes your hand. "Come on. Let's get you cleaned up."

You let her lead you back to her bag of supplies. With each step you can feel the mess spread further across your bottom.

Sarah takes a changing mat out and spreads it on the floor. "Lay down here."

You carefully lower yourself onto the mat, trying to avoid squashing the load in your diaper. You have limited success.

Sarah undoes the crotch of your onesie and pulls it out of the way so she can get to your diaper. She then undoes the tapes and pulls it open between your legs.

"Eww. This is gross." She giggles. "I think I prefer being on the other end of a messy diaper change."

You can only cover your face as you turn red.

Soon, you feel Sarah begin to clean you, running baby wipes over your bottom. It feels good to have the mess removed from your skin. The attention to your groin and bottom isn't so bad either.

When your bottom is clean, Sarah tapes you into a new diaper and refastens your onesie.

"Thank you." You say as she ties your messy diaper up in a plastic bag.

She disposes of if and washes her hands. "What would you like to do now?" She asks when she returns.