Rod Stewart’s pervy 25-year-old son Sean was on Howard Stern. To drum up some PR for God knows what, he admitted he often fantasized about and masturbated to his step-mom Rachel Hunter when he was young.

“I used to stare at (her) when she was down by the pool sunbathing naked. I was like 15 or 16 and I was sitting in my pool with a bottle of lotion. “(I never tried to hit on her because) I couldn’t handle the full rejection.”

I was going to make a joke, but then I thought it went too far even for me. I still feel nauseous thinking about it. Can you guess what it was? What? You think I was thinking about what?! You’re sick! SICK!

Here’s what Rachel Hunter looks like now.