Dad always washes my back in the bath. At those times, he gently pulls aside my underwear to check my private parts, murmuring in a voice that's both tender and intimidating, "Still needs a bit more loosening up..." His demeanor is a little frightening, yet the warmth of his hands touching my body feels strangely comforting. Even though Mom should be asleep in the next room, Dad suddenly wakes me up and takes me whenever he pleases. I'm completely powerless to resist. Eventually, my older brother joins in, and the two of them compete to dominate me. They slap my ass, make me service them with my breasts, and penetrate me from both ends like I'm being skewered, leaving me utterly broken. After enduring this day after day, I've become nothing less than Dad's obedient sex slave.