I, a married woman, was unconsciously seduced by sexual attraction and became a third-gender personal trainer who succumbed to the depravity of female pleasure. (Maria Ikeda, DASS-607)

I've been in terrible shape lately and got yelled at by my wife, so I decided to go to the gym. I tried a class and found a hot, toned trainer there—Ms. Marina! She was showing off her breasts and thighs, sweating profusely… In the private room, alone with her, I couldn't suppress my excitement and got an erection. Seeing me like this, Ms. Marina gently said, "If this continues, I won't be able to concentrate on my training…", and then kindly gave me oral sex. Because it felt so good, I said, "I can't take it anymore! Let me penetrate you!" Ms. Marina was shocked and said, "Okay… but I have a penis too…" Despite being confused, I became increasingly captivated by her sex appeal, sinking into the abyss of N-N-Pleasure…