Expansive acknowledgement, not fearful denial.

Is it possible to change my sexuality? I’ve been lesbian for three years, yet I’m suddenly attracted to both genders.

Is this a case of changing your sexuality or recognizing something you previously were unaware of?

Maybe, politically and socially, you took on the designation of lesbian because you have an aesthetic/romantic/sexual attraction to women you were happy to acknowledge. However, maybe that designation is incomplete personally now that you know you’re attracted to more than one gender. The lesbian “community” might push back if they feel you’ll abandon your commitment to progressive social causes in general and them in particular. If you can assure your community that you’re just as committed to a QUILTBAG-accepting and celebrating world as when you solely identified as lesbian, the fallout should be minimal (although I can’t tell you this will be the case, being an outsider myself). Your use of the word “changing” unfortunately suggests a fear of identifying with QUILTBAG communities and conjures up horror stories of heterosexist religious “conversion” therapy.

I know of one particular woman who is more than happy to embrace the term bisexual socially and politically, even though her own personal aesthetic, romantic, and sexual orientation is pansexual.