Dad, please forgive me... I'll never tell Mom, I promise. I was forced into ● by Dad in his room, and while Mom and my older brother were in the next room, Dad groped me, tormenting my body with vibrators, dildos, and electric massagers. I got so aroused I ended up peeing myself, and as punishment, I was spanked. I desperately held back my moans, afraid of being discovered by Mom, yet my body became exquisitely sensitive to Dad's touch. Now, I'm starting to feel like Dad's sex slave. Then one day, tied up with rope, I was taken by both my brother and Dad. After my brother came inside me, I realized Mom had been silently watching us from behind the sliding door... Hey, Mom, did you already know?