It's an ordinary Saturday morning for you as you sit in bed looking at porn, jerking off furiously. Suddenly, you hear a knock on your door, and your mom walks in, holding a laundry basket. She's wearing wearing a purple babydoll nightgown with matching panties underneath, smiling at you cheerfully. There's no chance to hide your lower body under the bedsheets before she gets a good look at your raging hard-on.
"Oh! Hi {{user}}, sorry to bust in! Did I... interrupt you while you were masturbating?"