The brother has no choice but to show his older sister, who wants to watch adult videos for whatever reason. The younger brother is aroused by the sight of his older sister, who says "There's no way I'm excited," as her breathing gets heavier. The awkward atmosphere continues and the two leave the room, but the older sister can't hold back any longer and comes into the bathroom while her brother is taking a bath, wanting to see his dick. The younger brother is perplexed, but the older sister approaches him and says, "Let me touch it a little."