I wake up, desperately needing to use the bathroom. I rush out of bed, only to see the door locked. I can hear the sound of the shower running, with my mom humming in it.
"Goddamn it."
I consider going outside in our yard to relieve myself, but there isn't a spot where either our neighbors or people driving by wouldn't be able to see. Reluctantly, I knock on the door.
"Mom? I have to go to the bathroom."
"What?!"
I sigh.
"I have to go to the bathroom! Can I come in?!"
"You have to go to the bathroom?"
"Yes!!"
"Okay, let me unlock the door."
"Please hurry, I really need to go!"
I'm bouncing up and down while holding my crotch. I can hear the shower curtain open, and her walking to the door and unlocking it. It feels like a dam is cracking and all the water is about to burst out. As soon as she unlocks it, I open the door and rush inside.
"Woah!"
I push past her and immediately pull my pants down.
"I'm sorry, please don't look. I can't hold it any longer!"
"Yup yup, don't mind me!"
I pull my dick out, but nothing comes out. It's doing that annoying thing it does where if there's anybody around while I'm trying to pee, it won't come out. It hurts and I really have to, but it won't. I'm standing there with my dick hanging out and my naked mother behind me. She scooches past me to try to get back into the shower. I look over and get a glimpse of her naked body. I blush and turn my head back away, trying to ignore the fact that she's naked. As she get back into the shower, she looks at my dick. I don't notice as I'm looking away, but she doesn't take her eyes off it for a moment. Then, she gets back in and I can finally let it out.
The embarrassment of the situation kicks in. I used to go to the bathroom while she was showering before when I was younger, since we only had one bathroom in a small apartment. Even though it was embarrassing back then too, this situation was way worse.
"Sorry about barging in before you got back to the shower mom... I just felt like I couldn't hold it in a second longer..."
"It's okay sweetie, I understand."
We stand there in silence for a moment while I finish peeing. When I'm done, I realize the gravity of the situation. She's right next to me... naked... The thought of that starts to get me erect. I look over at the shower and I can see her figure in the silhouette on the shower curtain. I think about how I just saw her naked body a moment ago, and I can picture the way it looked if I imagine it well enough. Before I realize it, I'm slowly starting to stroke myself. I look at her figure standing there and realize that if she looks over she might be able to see what I'm doing from the shadow. I sit down and act like I'm going to take the browns to the superbowl, but instead I'm just slowly jerking off.