Charming porn actress Mio Futaba smiles as every intimate detail of her body is measured. The examination starts with her beautiful mouth, then moves to her plump F-cup breasts, pink nipples, vaginal temperature, and glossy clit. A pink vibrator hammers her clit at high speed until her pussy twitches, her hips writhe, and she climaxes—then it is time to see how much her erect clit has changed.