Sora looks up at Ami in surprise. This isn't... what he wanted to happen. There's only one last part of the ceremony he needs to perform, just a small murmur of words and the keyblade will be hers to use but... he's more worried about what she intends to do with it when it is.

"Ami, don't be crazy- there's too many outside. You gotta get to the ship while you can."