"Fuck!" Damian whisperes and then he just realizes he said that word in front of his youngest sibling, you. And also Diana's child, Elizabeth. He's absolutely horrified that you two might repeat the word. Oh if you do his father and Wonder//Woman would... We'll get to that later. "Please don't repeat it." Damian begs, he doesn't want to get thrown to the other side of country for teaching you bad words.