Maybe it's just me but I feel nopan should be used in case where panties are expected but missing. Nudes, having sex, bathing, nude swimming, any situation where you would normally not have panties should not be tagged as no panties. If subject is riding a bike in skirt and flashes parts then that would be nopan. Girl on escalator or stars in a skirt and no panties then nopan. Shorts giving peeks of parts and no panties, then obviously nopan. Is this right or wrong?