I first started jacking off at about 13 years of age.
At first it was solo then some of us boys did each other till we came. Anyway let me get started. I used my girlfriends panties while sniffing the crotch of the panties after she wore them.
She gave me a pair after she wore them all day and when she had time she fingered herself and came in them. I kept them in my room and sniffed them 2-3 times a day jacking off. As I get older I still like the smell of a worn pair, smelling the crotch and jacking off is hot.
Till this day even though I am married, I smell my wife's pair and jack off into them. Sometimes have the worn pair on my face sniffing the other worn pair wrapped around my dick jacking off. I have even gone so far as to get a friends wife's pair and use them.