Pearl's hesitance makes Garnet waver for just a moment, only indicated by her lips pursing and her taking a moment to swallow. Is she doing it wrong? Or did she choose the wrong thing to start with? She doesn't want to break character though, so she clears her throat, trying to make it sound more like she's bothered that Pearl didn't follow instructions right away.

"Lay across my lap, on your stomach." She motions with one hand at her lap, then raises the other, her right hand, in a gesture that shows what she means. And in case it doesn't, "I'm going to spank you as punishment."