Before those three dream-like days arrived, our relationship as siblings of the same generation was relatively good. One day, right after our parents left for a trip, my sister suddenly kissed me. The kiss felt like it went beyond sibling physical contact… My sister didn't seem to care about my confusion as she pressed her ass against me, grabbed my erect penis, and guided it straight into her vagina! From there began the three days where we indulged in our lust.
