Don't be surprised if he kind of avoids you for a while or looks uncomfortable around you.. That was probably meant to remain his secret.. Just saying.

Lol what a baller.

Or, and this might seem like a shot in the dark, you could have just told him he is now going to do his own laundry. By 13 I was doing my own chores, so it might have been less embarrassing to have just told your son that he is a big boy and needs to start learning some life skills. That way no one would have had to breech the unspoken rule of parents ignore when their son masturbates.

Tell him to stop putting bacon in his pants. At least not the crispy kind. And definitely no Krispy Cream!

Why are you doing your 13 year old sons laundry?

Wow what an asshole of a mother you are!, Deal with it just throw the PJ's into the wash and let it be.

Right now I'm thinking I'm glad I only have daughters.

Don't forget the lotion

My girlfriends 10 year old brother jerks off now that's too young

Why? tissues are much worse. They get soggy, stick to your hands, etc. Tell him to use a dirty pair of boxers instead.