Bisexuality is
more than being a
girl and having sex with
men and women.
Many immature boys like the idea of having sex with many girls simultaneously. This boosted with all the pictures and stories in boys talk and popular sex magazines gives a groving boy a distorted view of the opposite sex.
Bisexuality doesn't mean that a (woman) has sex with men and women at the same time. It rather means that a person, be it man or woman, does feel attracted to both men and women. Bisexual person may form a relationship with a person from either sex.
I think bisexuality is the ideal form of sexuality -- a bisexual person can put sex aside and concentrate on the personality of people.