Satoru takes that encouragement as invitation--or perhaps request--and immediately slides her fingers between Suguru's folds, pushing two of them inside of her and pressing the heel of her hand against Suguru's clit to give her something to grind against. She starts off with firm stimulation, no teasing, just curls her fingers to rub at the inner wall of Suguru's cunt, searching to see if she gets a good result from rubbing at her g-spot.

As her attention moves there, her kissing slows to be more distracted. She continues responding to everything Suguru does in the kiss, but it's much more passive now, focused instead on learning how Suguru likes to be fingered.