In storyline, Young's mental issues made him completely unaware of Jordan's bisexual orientation and interest in him.

Another reason for a "marriage of convenience" is the lavender marriage, which conceals the homosexual or bisexual orientation of one or both spouses.

These factors, which may be related to the development of a heterosexual, homosexual, bisexual or asexual orientation, include genes, prenatal hormones, and brain structure.

STUD gathers people of homosexual and bisexual orientation, and heterosexual favourers.

There is no strong evidence that a homosexual or bisexual orientation must be associated with atypical gender roles.

There is no consensus among scientists about the exact reasons that an individual develops a heterosexual, bisexual or homosexual orientation.

Some evidence supports the concept of biological precursors of bisexual orientation in genetic males.