Heteroflexibility is a form of a sexual orientation or situational sexual behavior characterized by minimal homosexual activity despite a primarily heterosexual sexual orientation that is considered to distinguish it from bisexuality.

Most modern scientific surveys find that the majority of people report a mostly heterosexual orientation.

Like heterosexual orientation, homosexual orientation is usually not a result of "seduction."

Perhaps, then, only a men's magazine like Playboy, known for its strong heterosexual orientation, could become so intimately involved in the fight against AIDS.

Pedophilia can be described as a disorder of sexual preference, phenomenologically similar to a heterosexual or homosexual sexual orientation because it emerges before or during puberty, and because it is stable over time.

It has been argued that the might also ban any depictions of heterosexual orientation as well.

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

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