A few months ago, I found some guy's black underwear, in a stack of clothes and objects being thrown out, maybe moving or something. It was a busy day so people were walking around, but I grabbed the underwear. When I got the chance, I took a nice sniff - they were DEFINITELY used, jackpot! They smell very manly/musky, especially in the crotch and ass area, and a few random 'white streaks'. To give you an idea just how musky they smelled, I keep them by my bed and like 3 months later, they still smell like this guy!