An examination of cognitive sexual orientation, sexual partner activit
y, and sexual identity was conducted among 76 lesbian/bisexual female
youths and 80 gay/bisexual male youths (age range of 14-21 years) recr
uited from community-based or college organizations for lesbian/gay yo
uths in New York City. Self-identification as lesbian/gay or bisexual
changed over time; more than. half the youths who identified as lesbia
n/gay at the interview had considered themselves bisexual in the past,
and vice versa. A modal developmental sequence of cognitions and beha
viors was found: Most youths first became aware of a cognitive sexual
orientation (e.g., attractions and fantasies) toward the same or other
sea then considered a lesbian/gay or bisexual identity, and finally f
elt certain of a lesbian/gay or bisexual identity. Age at initiation o
f sexual activity with females or males was inconsistently related to
this pattern. Significant gender differences indicated that females we
re older than males when they first considered (M years of 13.9 and 12
.5, respectively) or were certain of (M years of 15.9 and 14.6 years,
respectively) being lesbian/gay. The majority of youths had a history
of sexual activity with the same sex (88% of females and 95% of males)
and the other sex (80% of females and 56% of males). The youths becam
e sexually active during the early adolescent years, both with the sam
e sex and the other sex. Their sexual practices, with the same and oth
er sex, followed an. initiation sequence beginning with manual (i.e.,
hand-genital) sex during the early teens and ending with anal practice
s during the middle and late teens. No significant gender differences
were found in lifetime prevalence rates or ages at initiating sexual p
ractices with the same sex. Gender differences were found for other-se
x partners: Females became sexually active at an older age than did ma
les, and more females than males engaged in heterosexual activity. No
significant differences in the psychosexual variables were found among
Black, Hispanic, White, and youths of other ethnic backgrounds.