Kimmy Kimm's stepsister, Jenna, walked in on her masturbating with a toy. Embarrassed, they both froze for a moment until Jenna realized how turned on she was by the sight of her step-sister's naked body. Kimmy, confused but also aroused, suggested they continue together. They began to touch each other, kissing passionately as their lust built up.
As they undressed each other, they discussed their taboo desires, including wanting to feel each other's cum inside them. The thought made both of them even wetter, and they continued experimenting with each other's bodies. Eventually, Jenna confessed that she had always wanted to feel her stepbrother's cum inside her. Hearing this, Kimmy got the idea to have Jenna pretend to be her stepsister so she could experience what it felt like to live in the upper class society.
