Kana is lonely because she can't have sex even though it's the weekend because her husband is on a business trip. - On the other hand, my son is always at home even though it's his day off. - Kana, who has no experience of dating and is worried about Tish's friend's son, decides to "train her sexual desires in the name of sex education"! - "Stop it~" My son suddenly pulls down his pants and resists, but he can't resist the pleasure of the blowjob he experiences for the first time...The unusual stimulation of the raw sex, which is too strong for a virgin, makes him almost cum. - However, Kana, who also wants to relieve her own frustration, is having a hard time making him cum. - "Don't cum yet!" The son's cock, which expands and becomes harder and harder after repeated stops, begins to give the mother unprecedented pleasure... - And the bond between mother and child deepens even more on a secret hot spring date from dad! - ? - "Let's play lover again with mommy◇"