And when will I marry? Never, if I can help it. But surely it is good to marry, Cesare? As the Pope’s daughter, you will have every prince of Europe vying for your hand.

well those moments in the first 2 seasons are what I consider inappropriate flirtations, like I mentioned before...of course the siblings already had inappropriate feelings for each other since the beginning which is why they've always been inappropriately intimate. But it was only when they finally made love in S3 that their relationship became fully incestuous, like I said, the dynamic in their relationship only changed in S3 and became much more passionate and romantic. Although their relationship was already inappropriate from the start and they were very flirtatious with each other in the first 2 seasons, but it wasn't the same as in S3, they really took their incestuous relationship to a whole new level in S3, and that's what I meant. Even though I agree that Cesare and Lucrezia already had deep feelings for each other since S1, it was very obvious that they had a special and close emotional connection from the start, and those feelings merely deepened and evolved over time, eventually to the point of true love in S3...which is why I wasn't surprised that the siblings really crossed that line in S3, to me it was inevitable. But I still believe that Cesare still had his limitations regarding how far he was willing to go in their relationship, it makes sense if you consider his behavior the day after he and Lucrezia made love, he felt so guilty and regretful that it happened, and he initially didn't want to make love to Lu, he actually tried to stop Lu that night and telling her that it's wrong and they shouldn't do it, but it was Lu who eventually persuaded Cesare to go through with it. And of course that time in ep 3x02 when Lu was lying naked on her bed and wanted Cesare to touch her feet then pulled him onto her bed and tried to kiss him, like I said before, Cesare looked really uncomfortable in that scene...I think it was all just a bit too much for him, especially their love-making session on Lu's wedding night. Lu really became the more assertive one in their relationship in S3, she became a lot more rash and bold with her feelings and behavior towards Cesare in S3, she really seemed like she had no limitations at all when it came to expressing her love for Cesare, nothing really tops making love with your own brother, right? While Cesare became the more cautious one in the relationship most of the time in S3.