Is it possible for a person to have homosexual experiences in youth, say as a teenager in high school or in college, yet grow up to be entirely straight? Anon.
No. Playing "doctor" during the prepubescent period is one thing, but actual gay sexual experiences after puberty-- in high school and in college (!) yet -- is something else. A young person who is gay may decide to live a straight or closeted life due to shame -- internalized homophobia -- or religious, societal or parental pressure -- but gay feelings simply don't just disappear. Bisexual advocates will suggest that a person who is more gay-active in youth may become more straight-active as he or she gets older (again, this could be due to internalized homophobia even if the person is legitimately bi) but they will still have a same-sex attraction. Despite the homophobic propaganda put out by ex-gay groups such as Exodus, a person who enjoys homosexual relationships at any age will never be 100% hetero.
But it's okay to be gay!