because they love the sexy silky feeling of it. every man has a feminism side. i am 14 years old i am a straight guy. but i do find it arousing to wear pantyhose or tight leotard pants. i used to find it arousing at first. but not anymore. i used to love getting hard on when wearing pantyhose/leotard leggings. another reason why men get hard on is because the men caress their legs in pantyhose. i know i love caressing my legs in pantyhose. i also like to rub them against each other. it feels good and very sexy and it sounds sexy. I as a boy have pantyhose/leotard pants fetish.