"If you want to do it, big brother, it's okay..." The sweet words of my younger sister, as she licks my testicles, sucks my cock with wet, juicy sounds, and gets her pussy dripping wet. Her innocent desire for me opens the door to days filled with nonstop sex. Her plump, well-developed breasts and soft, jiggly ass are so tempting I can't help but want to hold her tight. Sharing these moments with her turns into a secret, intimate life we can never tell our parents about—one that brings me true fulfillment every day.