Heteroflexible may be the most populous of the dozen sexual types.
If you are sexually flexible, you consider yourself straight, or mostly straight, but are open to the possibility, at least, of having sex with someone of the same gender. This category probably captures the majority of women and men in America today who are not exclusively homosexual or heterosexual in their attractions. It is poised to become the largest category of all as our culture becomes increasingly comfortable with the idea of sexual flexibility.
Flexible men and women may describe themselves as bi-curious, questioning, experimenting, or mostly straight. You may feel physically comfortable and emotionally close to a good friend of the same gender and curiously aroused by the possibility of fooling around with him or her. Or you may have realized that you find both men and women attractive, and you fantasize about both, though not necessarily to the same degree. You may not go looking for a homosexual experience, but you would be open if someone expressed interest in you. If you have already had a same-sex experience, you found it interesting or enjoyable, but it did not displace your interests in the opposite sex. Your worries about being gay, or being perceived as gay, are outweighed by your sense of self-confidence and curiosity, though you probably prefer to be seen by others as straight but open-minded. You may feel uncomfortable calling yourself bisexual.
Tom Hardy, one of the stars of the new movie Inception, may be best described as heteroflexible. He recently told the Daily Mail that he had sexual experiences with other men when he was a youth, but now that he’s in his thirties, “I’m done experimenting.” He is engaged to an actress and has a two year-old child.