21.   In some species, male-female lines are blurred where sexual identities are flexible.

22.   In those places, books had better include frustrated artists, suburban malaise, existential angst and questions about sexual identity, and possibly a mime.

23.   In the stalls, computerized voices babble on about sexual feelings, women and other sexual identities and so forth.

24.   In the last election, two transgendered people ran for supervisor from the same district, without their sexual identities becoming an issue.

25.   Indeed, sexual identity in general has become a more talked-about subject.

26.   Is her sexual identity at stake, or is she simply pouring her aimlessness into a relationship that is triply forbidden, being adulterous, homosexual and interracial?

27.   It is typically done by young people, with their hormones raging, feeling confusion about sexual identity.

28.   Kushner had spent years in analysis, trying to become a heterosexual, before accepting his sexual identity and revealing it to his mother.

29.   None of which has intimidated a group of musicologists bent on decoding what they see as manifestations of sex and sexual identity in music.

30.   Or even real sexual identity?