I love wearing women's lingerie. Especially if I know them. Once I stayed at a friend and his wife's house overnight and I was put up in the spare bedroom. As I was hanging my clothes in the closet I looked at his wife's clothes hanging there. She used the closet as her overflow closet. That night when I was confident they were asleep I explored the closet. Much to my delight I found a bra slip. I was completely erect before I could put it on. I wore it to bed and masturbated the night away.
I didn't leave any evidence of course.