"Huh?" Aqua says very intelligently, but Lapis is already going!

And comes back with another bottle, but Aqua doesn't trust like that anymore. Also, she was joking a little? She can just hear Ven's offended "No way!" in response to what she said...

"Hold on, let me see what you've got there."

She starts, in fact, just because she's worried now? Yeah.