NGR - Nagasare - A wife who was raped by her brother-in-law and found out she had her first orgasm

I think I feel calm and boring while still feeling the peace of mind of my serious but bland husband. One day, my brother-in-law Tetsuo visited my house... Kana parries Tetsuo's intense invitation to play with women, but he is swayed by him as he is persistently pushed into the relationship. Kana knows the acupoints that are different from her husband's, and the pistoning that goes deep into her vagina causes her to orgasm over and over again... I'm sure I'll be stunned by the pleasure I experienced for the first time. However, due to her guilt for betraying her husband, she continues to refuse Tetsuo's many invitations...