Back at my quiet family home, my arrogant younger sister returns as a fresh new office worker. One night, she comes home drunk from a company party. I mock her at first, amused by her uncharacteristic state—until I catch sight of her chest swaying, and I'm instantly transfixed. To my shock, she suddenly reveals herself boldly right there, making my cock throb hard. Before I realize it, we're having sex, and I end up shooting my load deep inside her. But the next morning, she has no memory of what happened. Does this mean I can sleep with her while she's drunk and get away with it? Strangely, the thought sends my heart racing.