When my son was 16, I started noticing that sometimes a pair of my panties would turn up missing and a week or two later would reappear. I knew he was just exploring female sexuality and that he wouldn't admit to doing it, but it did made me feel incredibly self-conscience. So right or wrong, I stated leaving the 'Mom Approved' panties I had worn on top of my hamper for him to find. So, at least I wouldn't feel as embarrassed about it. To this day, I've never told him I knew what he was doing. Or that I was vain enough to do what I did.