This room is for discussion related to learning about the faith (Catechetics), defense of the Faith (Apologetics), the Liturgy and canon law, motivated by a desire to grow closer to Christ or to bring someone else closer.
Saint Augustine of Hippo is considered on of the greatest Christian thinkers of all time and the Doctor of the Church.
Learn More: Saint Augustine
It's akin to asking whether it's worse to muder one person or two.
What you're saying is that there's no difference between what Jim Gordon did and Hitler. Both committed a mortal sin. completely separating themselves from God and His grace. You can't say they are equal in gravity.
No source? The purpose of premarital sex is not procreative. Pre-marital sex is against the divine purpose.
The purpose of the sexual act is a characteristic of the act itself as created by God, not by the circumstances under which it occurs or the intention of the actors. That it is entered into outside marriage does not change its procreative purpose.
Continuing the argumentative exchange in this topic serves no further purpose and it has been locked.