Lenz makes a deliberate spectacle of rolling his eyes in response to Minty's gesture but drops the exasperated expression once she actually asks her question. For just a moment, he's quiet, but even that's enough to highlight the fact that he's thinking about what he'll say next.
"My sister," he returns curtly, then shrugs and smiles thinly at Minty, "...You can't blame this one me. It's not much of a question."
TRUTH OR DARE: Lenz
"My sister," he returns curtly, then shrugs and smiles thinly at Minty, "...You can't blame this one me. It's not much of a question."