Robin, sorry your definitions don't work for me. For me Bisexuality is more about attraction and identity and less about experience. I am married to a gay man and have only had sex with women twice and a pre-op transsexual once. However, I fully identify as Bisexual as I am still attracted to men and women.
Biresource.org
"The BRC uses bisexual as an umbrella term for people who recognize and honor their potential for sexual and emotional attraction to more than one gender (pansexual, fluid, omnisexual, queer, and all other free-identifiers). We celebrate and affirm the diversity of identity and expression regardless of labels"
Bisexual Resource Center - What is Bisexuality? is a whole article that discusses Bisexuality.