The test begins with doll-faced adult performer Ageha Kinoshita being told that her sensitivity is about to be checked. Smiling, she admits that she loves being penetrated while her nipples are played with. Once she undresses, her nipples are already fully hard, making it clear how sensitive she is. She says being watched turns her on, then grows soaking wet as fingers tease her pussy, filling the room with slick sounds while thick juices spill out. A powerful vibrator finally pushes her into orgasm, and she cannot stop rocking her own hips, proving that both her breasts and pussy are exceptionally responsive.