In this 4-part series, Fr. Sean teaches sexual ethics using scripture and the Catechism of the Catholic Church. Due to the explicit nature of this topic, this series is geared toward engaged couples, married couples, and other mature audiences.
You can find more information regarding sexual ethics in the Catechism of the Catholic Church, paragraphs 2331–2400 (found in Part 3, Section 2, Article 6 - The Sixth Commandment).