Mina-sensei is popular with both students and teachers for her bright and energetic personality and beauty, and because she is serious, she has succeeded in developing a slightly unusual study method. The method is to release the sperm that has accumulated in the balls of an adolescent male student and make him concentrate on his studies. Furthermore, it is said that the most effective method is to fire continuously in order to thoroughly empty the testicles. In order to immediately check the effect, she uses her student as a test subject while bouncing her naughty big breasts and big butt body and squeezes his sperm!
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