You decide to go ahead and deal with your raging hardon-you carefully lie down on the floor on your belly, pressing both hands to the front of your padded crotch. You then proceed to buck your hips, rubbing your hands vigorously against your crotch. It takes several minutes for you to build up any friction, due to the thickness of the diapers. Finally though, you start to feel the sexual energy building. You rub harder and harder, moaning and panting as you continue to work your hips on the floor. Soon, you orgasm in a huge release, filling your diapers with cum.
Just then, your heart sinks, as you hear your girlfriends stern voice. "Well, well, well, what a naughty baby, jerking off in your diapers! Looks like Mamma's gonna have to teach baby a lesson!"
With that, she grabs your wrist, roughly jerking you up off the floor. Once you get to your feet, she slaps your butt, hard.
Now, you finally get a good look at her outfit: a short, skimpy, sexy nurse outfit with white pantyhose. Her hair is done up in a tight, neat, bun.
"Now then, those laxatives are going to kick in soon, causing you to make a nice, stinky, mess for Mamma. I would have changed you right away, but since you were naughty, and made a big boy mess in your pants, you're going to have to wear that diaper for the next hour. And that's not all. For the other part of your punishment, I all gonna make you choose:
You can make it up to me by letting me sit on your precious face for 20 minutes and get your punishment over quickly or, I can pour itching powder in your diapers for the whole hour.