My Overdeveloped Son Has a Masturbation Problem

I walk into the bathroom and find ejaculate on the mirror.. obviously I have to double check by touching it and smelling it.. yep, definitely cum.. probably my son the horny devil. But wait.. MORE cum.. in MY PANTIES!! Christ I had no idea that I had a pervert for a son! I turn around and he's standing there, making me jump. I come clean and let him know what I found to get answers. He tells me he's got a "problem" and that he can't stop jerking off.. he's also overdeveloped and his balls are constantly full of cum! *sigh* what's a mommy to do when her poor boy needs release so many times a day? Must be so difficult for him, bless his heart.. I guess I'll do what any decent mother should do in a situation like this.. let him use my pussy as a cock sleeve until he's fully satisfied and then offer myself as a free-use hole for whenever he gets the urge to stroke himself.. problem solved.