Hearing Severus talk of Draco in such a way made Lucius uneasy. While he had tried to come to terms with the fact that Draco was now an adult, a part of him still thought of his son as an eight-year-old. He should be grateful to his old friend for looking out for his son, and yet he felt himself resenting him for being a better father figure than he was.
"Yes, so I've heard. He tells me that potions was his favourite subject. I expect you had a lot to do with that..." His tone was noticeably curt, and he surveyed his companion with a steely gaze. "Well, I'm not sure who he takes after there. His mother, most probably..."
He took another sip of his stout. "So, what were you saying about Bellatrix? You've taken her under your wing? You've become something of the mother hen, it seems..."