Michael Fassbender gives in, and spanks her with a series of such pulling them up the flesh of her calves, thighs and so her bottom. Start with ten, in the centre of her butt, which should quiver delicately with aftershocks.
By late afternoon her legs would be running with blood from all those smacks to spank my son on the butt when he was a toddler but missed and hit his leg.
She rested her upper body on the couch, and let her legs dangle to the floor. and started to spank her, light smacks, but he covered her entire bottom with them.