Vianna chuckled softly as Ferris agreed to stirring the potion later on, and a few sets of giggles escaped her smiling lips as his lips met the tip of her nose. And then, as if on cue, the watch on her wrist began to beep, announcing it was time to stir the potion. Vianna blinked and she was expressionless for a second before laughing aloud at the irony of it. "Have fun, Professor!" she said teasingly, sticking her tongue out at him childishly before laughing lightly to herself.