Is it a sin to live in cohabitation and marry your brother-in-law’s brother?

Question:

I have a question. For the time being, I live in cohabitation with my brother-in-law’s brother, meaning we are 2 brothers with 2 sisters. They are natural brothers and we are natural sisters. My sister is married to my boyfriend’s brother and in a short time we want to do the same. Is it a sin or…?

It is a sin, a fornication, the fact that you live in cohabitation. From the moment you receive the answer to this message, I urge you to stop having sexual relations, because they are sinful, contrary to God’s will, and they will have many consequences for you that I am sure you do not want.

I invite you to read the article “Is it allowed to marry your brother-in-law?” to find out the answer in the Bible to your question.

Translated by Nicoleta Vicliuc