Eight is feeling a bit proud and doesn't feel too embarrassed to show off that, yes, even her insides are colored. She does this by opening her mouth, revealing that her tongue, gums, and inside of her mouth have taken on a distinctive Tidus-yellow hue.

Eight does ponder Tidus's words and considers... huh, that wasn't his actual fur color...? Interesting. "I didn't know that humans would dye their fur." Then again, it did make much sense. "Staying with the same color all the time must get boring, huh?" She asked in innocent rudeness.