All the above definitions cover the concept "pansexual", i.e. willing to have sex with anything, be it man, beast, rock etc. My rather waywaerd friends
believe it to mean "someone who beleives themselves to be homo-, hetero- or bi-sexual at any point in time, and believes it completely", for example someone who is gay one day, straight the next, bi on another day.
This is just confusion, I BELIEVE!