My friend's wife is a lewd private tutor

Akina's husband asks her to "Can you tutor my colleague's son?" Akina, who hasn't been paying attention to him recently and hasn't been bothered by the night, is bored, but he is half-stomped and agrees to the story... The next day, I immediately looked at my studies and found out that my son was a hardcore dropout! Plus, Akina's sexiness makes her crotch bulge out. So Akina begins her special special lesson...