A super serious literature girl is curious about a man who gets an erection just from a pair of pants! He gets a full erection when he sees a literature girl's panties! If he does, he has a lot of knowledge about sex, but a literature girl with little experience will only seek a real erect penis for the moment to satisfy her desire for knowledge! She touches the erect penis with the desire to satisfy her Kokoro rather than her sexual desire, but by the time she realizes it, her pussy is soaking wet and she is dominated by her sexual desire. This is the human sexuality that you can't learn from novels.