When i was about 15 i stole a bra and a pair of panties from my best friend’s younger sister. I kept them for months and masturbated almost every day while wearing them.
One day she came round to my house and found her underwear under my bed. I’m now 23 and my mates still rip the piss out of me, but they don’t know i wanked off in ’em.
The sad thing is i miss those panties.