It is important to practice protected sex to prevent the spread of sexually transmitted infections.

This school offers single-sex education, which is suitable for students who prefer learning in a gender-specific environment.

The fair sex is often portrayed as delicate and fragile.

Many people believe that women should not be treated as sex objects.

Many couples struggle to maintain satisfying sex lives.

The sex chromosomes determine the biological sex of an individual.

The sex organs are responsible for reproduction.

I bought some new sex toys online.

There have been several sex tapes leaked online.

Sex workers provide essential services to their clients.