I have read a lot of the threads on this site in regard to the experiences and sometimes problems many BI women have with what they regard as sudden shifts in orientation. Other women are confused by an odd attraction to men that seems to run counter to a Lesbian identity to the point where they question whether or not they are in fact BI. This counter attraction is probably more noticeable during the monthly hormonal changes during the ovulation cycle. BI in this instance stands for Biological Imperative. You still have a biological need to be impregnated and this unfortunately involves a man somewhere along the line. I am afraid that evolutionary psychology trumps orientation up to a certain age. Our own psychology has yet to catch up with the advances in medical science in regard to artificial insemination.People are just a particularly advanced and evolved Hominid animal and this means they are driven primarily by a genetic need for procreation. Many of the “late life lesbians” have described a shift in their orientation particularly after child birth when the biological imperative has been satisfied. There then seems to be a general lack of interest in men, or sometimes a disgust. Once the man has served his purpose the next shift is into the discard phase. This happens either consciously or unconsciously depending on the emotional intelligence and maturity of the individual to fully understand what is happening. Many women accept this innate biological need for a man with a self acknowledged latent homosexuality as a bi-sexual identity. The shift is sometimes dramatic and the consequences for the straight partner are far reaching and profoundly damaging. This process can also be observed in homosexual men, but to a far lesser degree as the ability to father children at some point is not time bounded as it is in women. The next significant change can occur in middle age when the biological imperative is lost due to the inability to become pregnant and therefore the need to be in a relationship with a man is unnecessary. Again, the same process is in play with homosexual men when it comes to the loss of mating capability in their female partner. The attention here for both gay men and gay women then shifts to an emotional bonding sex which can be better satisfied in a relationship more particular to the pre-existing orientation. Homosexuality is after all an evolutionary necessity that in part led to the success of our particular brand of hominid over other animals. |f this was fully understood and accepted by the world at large then the rights and social acceptance of homosexual individuals would not even be an issue.