It had all been a surprising coincidence. Cesare had merely been chatting about the political climate as he always did, when he mentioned Natasha in passing. Someone happened to know about Natasha. Know a lot, in fact. And eventually, as more drinks were poured and they had some discussions, so did Cesare.
Now, part of Cesare thinks he should keep this information to himself. After all, he might need it at some point. But another part of him, the more persuasive part, is too tempted to watch Natasha squirm. She's always been so composed and stoic. Cesare is curious to find out if, all in good fun, he can make that facade crack.
He invites her to afternoon drinks, as he's grown accustomed to doing. (After all, it's always helpful to keep the door to fellow vampires open when they've chosen to sit on the wrong side). For Natasha at least, it seems like any other day.
"How have you been?" he asks politely, standing when she enters because he's a gentleman like that. And also because he's old as sin.