http://www.catechism.cc/articles/QA.htm
Questions and Answers on Catholic Marital Sexual Ethics
by Ronald L. Conte Jr.
To submit a question, contact the author.
1. What determines the morality of an act?
2. What determines the morality of a sexual act?
3. Which types of sexual acts are moral between a husband and wife?
4. Which types of acts are moral for a husband and wife to use as pre-intimacy?
5. Is the missionary position the only moral sexual position?
6. If the husband or wife is not fertile, due to injury, illness, or old age, is the act of natural marital relations still moral?
7. May a married couple engage in natural intercourse during the wife's pregnancy, or during her period?
8. Are divorced Catholics permitted to receive holy Communion?
9. Why is the use of contraception always gravely immoral?
10. May a married couple use barrier contraceptives to prevent disease transmission?
11. May a married woman use contraceptives for a medical purpose?
12. Must a spouse refrain from sexual relations with a contracepting spouse?
13. How is natural family planning (NFP) different from artificial birth control (ABC)?
14. Is passionate kissing only moral within marriage?
For an in-depth explanation of marital sexual ethics as well as the basic principles
of Catholic moral theology, see my book: The Catechism of Catholic Ethics.