What is Catholic moral teaching on rape?

The Church teaches that rape is always an intrinsically evil act. It not only forcibly violates “the sexual intimacy of another person,” but it does injury to justice and charity.

Rape deeply wounds the respect, freedom, and physical and moral integrity to which every person has a right. It causes grave damage that can mark the victim for life. It is always an intrinsically evil act. Graver still is the rape of children committed by parents (incest) or those responsible for the education of the children entrusted to them. (CCC 2356)