"Yes," Ashiko said, though it took her a moment to churn up the relevant memory. She frowned thoughtfully and looked back up at him. "I'll need to be on my stomach to do it like that, won't I?"

It might get a little difficult for him to act as insurance against her head going under, if she flipped over now. He did seem to know what he was talking about so far, though, so Ashiko had no reason not to trust him for this next step.