Bored teen siblings, left alone by their parents, find solace in each other's company. One sister, frustrated with her lack of sexual experience, confides in her brother about her desires. He, too, admits his fantasies about her and their other sister. They decide to explore each other's bodies, starting with innocent touches that soon escalate into passionate kissing and heavy petting. The brother's big cock grows hard, and the sisters can't resist the urge to touch and taste it, their tight pussies aching for release.