Courfeyrac finds himself sputtering a little. While he isn't a prude or anything, it's still completely strange to be talking about sex with a woman he isn't sleeping with. "I have done nothing of the sort! No one has left anyone as far as I am aware!" Part of him wants to chide Venus for being so forward, but the other part of him really doesn't care. He is what he is, but he doesn't want Cindy's reputation to be damage on account of him.