[His ears go pink even as he laughs. It's a joke, but it's not like he's immune! He is not and never will be totally immune to a cute girl making a joke like that at him, however familial their relationship might be! But he settles after that moment, nodding shallowly.]

Yeah. That only makes sense, if you ask me. It's one thing to never have time to think about it 'cuz crap never stops happening, and another to have all this time on your hands . . . it's you, though. I'm surprised you'd have any trouble. Unless it's just a matter of not clicking with anyone.