This model explains sexual identity as a system of interrelated components, using an analogy with physics. Each component can take different forms, represented through variations of the same color. This model can be visualized in the following diagram.
Illustration by Moscas de Colores, based on a mockup by Graficsfuel
What is sexual identity?
Sexual identity is the set of characteristics related to a person’s sexuality. These characteristics interact with one another and form part of a person’s overall identity, alongside other aspects such as culture, beliefs, or personality.
Understanding sexual identity helps make sense of human diversity and reduces the confusion often caused by the way these terms are used today.
The problem: confusion around sexual diversity
For a long time, sexual reality was reduced to simple and exclusive categories. However, increased knowledge and visibility have led to the emergence of a wide range of terms, labels, and definitions.
While this has helped recognize diverse realities, it has also created confusion. Different concepts are often mixed or used incorrectly, making them harder to understand.
This is why it becomes necessary to classify, organize, and relate these concepts.
A proposal: sexual identity as a system
To better understand sexual diversity, we propose a model based on the classification and relationship between its components.
This approach does not create new realities, but organizes existing ones in a way that makes them easier to understand.
This model can be visualized in the following diagram.
The 5 components of sexual identity
Sexual identity is made up of five main components. Although they are related, each one defines a different aspect.
1. Biological sex
This refers to the physical and biological characteristics of a person, such as chromosomes, hormones, and reproductive organs.
Based on these characteristics, individuals may be classified as male, female, or intersex.
2. Gender identity
This is how a person perceives themselves in relation to gender.
A person may identify as a man, a woman, both, neither, or somewhere along a spectrum.
3. Sexual orientation
This refers to emotional and sexual attraction toward other people.
It may be directed toward the same gender, a different gender, multiple genders, or none.
4. Gender expression
This is how a person expresses their identity through appearance, behavior, or ways of presenting themselves.
It includes aspects such as aesthetics, mannerisms, and social roles.
5. Sexual behavior
This refers to a person’s sexual practices, desires, and behaviors.
It includes both actions and fantasies.
The relationship between components
These five elements do not function in isolation. They interact with one another, giving rise to a wide range of human experiences.
Everyone has these components, although they are expressed differently in each individual.
Rather than creating rigid categories, it is more useful to understand how these elements relate to each other.
Why classification matters
Classifying does not limit reality — it makes it understandable.
When concepts are mixed, discussion becomes confusing and communication breaks down. By contrast, a clear and shared language allows for better understanding, dialogue, and progress.
Using a common, clear framework helps to:
· better understand reality
· avoid confusion
· improve social debate
· support education and policymaking
A tool for understanding, not imposing
This model does not aim to impose a single vision, but to offer a tool for understanding sexual diversity in a clearer and more structured way.
All people share the same components, but each individual combines them in a unique way.
Conclusion
Sexual diversity is not a collection of disconnected labels, but a complex reality that can be better understood when it is organized and analyzed.
Sexual identity is one way of making sense of that reality.
Explore the concepts in detail
If you want to go deeper into each of these components, you can explore our glossary:
👉 Go to the LGBT glossary
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