It's important to note that while "sexo" is the direct translation of "sex," it's considered a more formal and clinical term in Spanish. In casual conversation, people might use other words like:
* "Relaciones sexuales": sexual relations
* "Hacer el amor": to make love
* "Ir al grano": to get to the point (in a sexual context)
Remember, the appropriate word choice depends on the context and the audience.