The Catechism Of The Catholic Church#2355

Prostitution does injury to the person who engages in it,reducing the person to an instrument of sexual pleasure.

The one pays sins gravely against himself:he violates the chastity to which his Baptism pledged him and defiles his body,the temple of the Holy Spirit.

Prostitution is a social scourge.

It usually involves women,but also men,women,and adolescents.

The latter two cases involve the added sin of scandal.

While it is always gravely sinful to engage in prostitution,the imputability of the offense can be attentuated to destitution,blackmail,or social pressure.