Men Wearing Panties Turn Me On

I caught my brothers friend wearing my panties. He was staying us for awhile one summer. I walked into the bathroom and there he was in my panties. I was shocked to see him wearing my panties. He was standing in front of the bathroom mirror looking at himself. I just closed the door and walked away, I was so excited the rest of the day, that night I could not sleep thinking about him wearing panties and masturbated thinking about him wearing panties.  He was so embarrassed and never did say anything and neither did I but I wanted so badly to see him wearing panties and to touch him.