Wearing someone else's underwear

I'm sure this has been a thread at some point and going back 5 pages I have yet to see it be recent, so why not ask again

Has anyone here borrowed/worn someone else's underwear? A family member, brother, uncle, father... Where they a fresh pair, dirty? How'd it make you feel wearing them? Did you put them back or still have them?

When I was younger, I saw a pair of my uncles boxer briefs on the floor in his bathroom, I hadn't the clue of those pairs because I had recently went from...

Wearing someone else's underwear