Is it normal that i wear the same panties day after day to smell them?
It isn't a sexual thing. I just find the smell of my own undergarments after a good weeks use very nice and enjoy putting my head near my crotch to get a good whiff when no one's near by. Sometimes in class I can get away with still enjoying my scent by sitting with my legs propped open.
Before I get in the shower, I like to take them off and smell them full on nose to panties. I additionally like to smell the inside of my pants as well, as the dirty underwear leaves a smell imprint there. The longest time I've worn the same underwear was I believe 3 weeks. What stops me from going longer is my period.