I was in the bathroom one day jacking off to a mag. When I do it in the bathroom I tend to stand over the sink, it causes my balls to smack against the counter and kinda makes a little bit too much noise. One time I forgot to lock the bathroom door, we didn't have the fan built in at the time so there was no way of knowing someone was in the bathroom unless they tried the knob (of the door
) Well, I was too focused on my cock that I didn't hear someone beginning to open the door, my grandmother got the door part way open before I shouted that I was in there, she had heard the noise and quickly shut the door. She didn't see, but I'm sure she heard me. I ended up running up to my room to finish off in front of my computer. It was quite embarrassing!