Originally Posted by yngsto6

I read your question on the other thread and I found this:

Does the Bible support the Catholic practice of a marriage annulment?

"When issued, an annulment does not end the effects conferred by the sacrament. The annulment declares that the sacrament in question was not valid from the start, and the recipient is treated as though he or she never actually received the sacrament. That does not mean that children from the marriage are now considered born out of wedlock or that the ex-spouses committed any sort of fornication. It means that the receipt of the sacrament was somehow flawed. An annulment works like a military court."

I don't think it's a Catholic website so it may not be the exact answer but I think it touches on the truth. My personal belief in the situation that you've described -- was sex during an eventually anulled marriage actually fornication since the marriage is declared null? -- is that God is merciful and if one or both persons in the marriage were sincere in their commitment to the marriage, then it was not fornication.