Most people accept that personality shifts over a decade. So why is the idea that sexuality can shift so hard to sit with?
Dr. Emily Jamea, a sex therapist, walks through the vocabulary and the lived reality in a recent column. The piece is a useful primer on how identity is layered, and why "fluid" doesn't mean "confused."
Quick take
- Sexual identity has several distinct layers: biological sex, gender identity, gender expression, romantic orientation, and sexual/erotic orientation.
- Cisgender means your gender identity matches the sex you were assigned at birth.
- Sexual fluidity refers to shifts in attraction or behavior over time, not a phase to dismiss.
- Historical and cross-cultural examples of gender fluidity predate modern labels.
The five layers, briefly
Jamea lays them out clearly:
- Biological sex: the chromosomes and anatomy you were born with, recognizing rare variations.
- Gender identity: your internal sense of being masculine, feminine, both, or neither.
- Gender expression: how you present — clothing, voice, grooming.
- Romantic orientation: who you're emotionally drawn to.
- Sexual/erotic orientation: who you're physically attracted to.
These layers can move independently. Someone can be romantically attracted to one gender and sexually attracted to several, or feel one identity at work and another at home.
| Person | Biological Sex | Gender Identity | Gender Expression | Romantic Orientation | Sexual Orientation |
|---|---|---|---|---|---|
| Bethany | Female | Female | Femme | Male | Heterosexual |
| David | Male | Male | Masculine | Female | Predominantly heterosexual with some fluidity |
| Blake | Male | Non-binary | Fluid/situational | Panromantic | Asexual |
What fluidity actually means
Fluidity isn't indecision. It means attraction, behavior, or identity can shift over time. A college experience with a same-sex partner doesn't "make" someone gay or bi. It may be a moment of fluidity — and that's it.
Jamea points to historical examples. Ancient Egyptians sometimes shifted gender to ease transition into the afterlife. Pompeii's walls carry carved depictions of non-heterosexual behavior. Many Native American traditions recognize "two-spirit" identities long before Western frameworks existed.
Modern examples are visible in pop culture. One public figure who surprised fans by navigating fluidity later in life is an actress who had previously been seen as embodying heterosexual norms.
Who should care
- Anyone questioning their identity** — The vocabulary here is a tool, not a requirement. Use what fits, ignore the rest.
- Partners navigating change** — Identity isn't a one-time conversation. It can shift across decades.
- Parents and family members** — Treating any one layer as "the real person" erases the rest. The distress often comes from inability to express identity safely, not from the identity itself.
- Therapists and counselors** — This framework helps separate what someone feels, what they do, who they're drawn to, and how they present. Conflation is where most confusion starts.
Our analysis
The clinical value of this framing is that it removes the need for a single label to carry everything. Readers who grew up with binary categories often try to compress themselves into one.
There's a practical ripple effect worth noting: as vocabulary expands, people are naming experiences earlier — but the research base hasn't caught up. Most studies capture identity at a single point in time. What we don't yet have is solid longitudinal data tracking how these layers shift across decades. That gap matters when someone uses a study to invalidate their own experience.
The deeper point is this: fluidity isn't a trend. It's a feature of human experience that Western culture has historically erased. What's changing isn't who people are — it's the language available to say it.
What to watch next
Watch for more longitudinal research on how sexual identity evolves across decades. Also watch how cultural visibility changes coming-out timelines for younger adults. The vocabulary is expanding faster than the research base, which creates both opportunity and responsibility.
Key takeaways
- Sexual identity has five distinct layers, and they can move independently.
- Fluidity means attraction or behavior can shift over time; it isn't a phase to dismiss.
- Historical and cross-cultural examples of fluidity predate modern Western labels.
- Mental health support matters most when identity can't be expressed safely.
Frequently asked questions
Is sexual fluidity the same as being bisexual?
Not exactly. Bisexual is a stable orientation. Fluidity describes change over time. Many people experience both at different points.
Can you be romantically attracted to one gender and sexually attracted to another?
Yes. Romantic and sexual/erotic orientations are separate layers. They often align, but not always.
Does identifying as non-binary mean you're transgender?
Not necessarily. Non-binary is a gender identity outside the male/female binary. Some non-binary people also identify as trans; others don't.
Should I see a therapist if I'm questioning my identity?
A therapist experienced in identity work can help you sort feelings without steering you toward a label. Look for someone who uses an affirmative, exploratory approach.
Source: healthywomen.org