Education about sexual relations is important for young people to make healthy choices.

His work is highly valued for its artistic quality.

He decided to undergo sex change surgery.

This compound has high hydrophilicity, so it mixes very well with water.

Sexology is the scientific study of human sexual behavior and sexuality.

She was sold as a sex slave in the past.

His sociability is an important factor for his success as a leader.

He is suffering from acquired immunodeficiency syndrome.

Owls are nocturnal animals, they are active at night.

He has lived without going against the fate that was decided by his birth.