Mei is a serious and kind girl. Her recent problem is her large breasts, inherited from her mother. Mei's shoulders are stiff due to her F-cup giant breasts, so her creepy siscon brother decides to give her a massage... The well-developed breasts of his younger sister push his brother to his limit. His touch becomes more and more erotic, kneading the large breasts... "Big brother? Is this part of the massage too?" Mei, who is weak to pressure, finds herself committing incest with her brother before she knows it!
