"You have such little faith in my being able to defend myself against your brother?" he said with a mock pout. "Ha, something tells me your brother doesn't think anyone will ever be good enough for you."
Cass was fairly certain that was because of some innate instinct of Terence's wanting to protect his baby sister. After all, he thought, if I had a younger sister I'd probably react much the same way; and probably will if the baby turns out to be a girl.
"I'd have to wonder then at your wanting me to come along with you to the lake then. If that is indeed the case," he said, even though he knew full well she was just joking around.