Bilateral is to
bisexual as
ambidextrous is to
ambisexual.
Bi
lateral relates to
both the right and left sides of something while
bisexual refers
a similar situation in
sexual terms. Being ambidextrous usually means that one is capable of
using both hands with
equal ease. Being ambi
sexual would then imply that
both sexes are equally preferable.
Merriam-Webster supports this
theory by considering it a synonym for
bisexual.