Rex raised an eyebrow, gesturing toward himself. "What? Of course, it's safe! I can guarantee you my blood is top-notch. I don't smoke, I don't do drugs... well, I drink occasionally, but it's been a while, so I'm clean!" He gave them a thumbs-up, grinning.
Lyra frowned slightly as she swirled the golden liquid in her glass, watching it catch the light. "It's not that, Uncle Rex. It's just… your blood is golden. We've seen red and brown blood before, but we've never seen anything like this."
Rex blinked, looking genuinely surprised for a moment, then leaned back smugly. "Huh. Guess I'm built different," he said with a shrug.