Two teens, bound by blood and forbidden desire, find themselves entwined in a lustful dance under the shower's hot spray. The sister, her body awakening to new, taboo sensations, can't help but stare at her brother's growing erection. He, equally aroused, can't hide his excitement. As they soap each other, hands wander, and breaths grow ragged. She reaches out, tentatively touching his hard cock, feeling its heat. He responds, his hands roaming her body, making her gasp and cling to him, their taboo passion consuming them.