Why Does My Son Watch Porn on my Laptop?

Mom comes in, she looks like one of the Old Ladies from a Sons of Anarchy episode. She proudly tells me how she decorated her 14 year old son's room with a border of Playboy centerfolds.....while I stood there unable to control the look of disbelief on my face. (I'm sorry, it just took over, I thought maybe she was telling a joke!) Seeing my face, she dismissed my reaction with, "I didn't put up anything showing nothing nasty!" Maybe I'm not well-versed in Playboydom, but don't the centerfolds show the juicy bits?!?!?!