This article is from the BiSexuality FAQ, by Jon Harley email@example.com with numerous contributions by others.
(See section B12 for the definitions of MOTSS/MOTOS)
Can you be? Sure. Are you? That's up to you to decide; nobody can make that
decision for you, and nobody has the right to tell you your decision is wrong.
Bisexuality isn't about WHOM you sleep with, it's about HOW you feel; so a
good rule of thumb in defining your sexual identity is not what you've done,
but what you'd like to do.