Mum Photographed

So my mum has always been a beautiful woman even getting on in age she's great looking. My friends often called her a milf. Thing is one of the people in my sixth form class is a creep. Genuine weirdo who never shuts up about his sexual desires among other things. Anyway one day my mum often picked me up before I could start paying for the bus but one day at class this creep was really bragging about getting pics of my mum!! I didn't take it seriously at first coz I thought he was full of shit but then he showed the pics, thing to understand is this creep whom I won't name has a huge foot fetish. So when I looked at the pics and there was my mum! For context, my mum often goes barefoot when she relaxing so her huge soles were on the dashboard. The final one made me lost blood in my head when I saw that she seemed to be smiling at the camera! Her huge well kept soles still in view.
I was so embarrassed and astounded. He got weirder and even said he's gonna try saying hello and pretend to be my friend so he can end up rubbing her feet for her but I really don't think he'd dare but that smile seemed inviting. I don't know what to do. What do you think