It wasn't as if her cousin would have said no, anyway. She was excited to see Yuna and where she'd been living--she was really proud of her for... well, striking out on her own. Mostly. Having Tidus there just made it ten times better. "Uh, you go first! I'm really curious about this place." And a quick jaunt up the stairs would really get her ready to talk about Spira--not that she even imagined Yuna didn't know they'd beaten Vegnagun.