Shimaja's sister, consumed by her lustful thoughts, seeks solace in self-pleasure. She slips her hand beneath her skirt, feeling the dampness between her thighs. Her fingers find their way to her clit, rubbing in tight circles as she leans back, her breath hitching. She envisions her brother's naked body, his cock hard and ready for her. Her fingers dip inside, mimicking the thrusts she craves, as she grinds against her hand, seeking relief from her relentless desire. The sound of footsteps outside her room sends a thrill through her, adding to her arousal. She bites her lip, trying to stay quiet as she rides the wave of her orgasm, her body convulsing with pent-up pleasure.