If guys dont wear undies, they have to be careful where the zips
are or they would end up with a shock of their life when the zips
get entagle on the foreskins.
If gals dont wear undies under the pants, they would numb the
clitoris with too many rubs and it is not good as that part becomes
less sensitive as time goes by. You wont be able to enjoy sex with
less sensitive clitoris, trust me dear. No undies under the
skirt??? For how long can you so that, it is not practical as the
drips would start bothering you.
Be smart, wear undies, and lead a peaceful life. By the wear I also
well undies for men and women, hahaha