Jessica, the inquisitive sister, discovers the pleasure of self-touch in the privacy of the bathroom. She leans against the sink, her fingers dancing along the damp fabric of her panties, her breath hitching as she explores her newfound sensations. The sound of footsteps outside the door sends a thrill through her, wondering if it's her brother who might catch her in this intimate moment. She pauses, then resumes, her desire building as she dares herself to go further, her fingers slipping beneath the fabric, seeking the source of her heat and longing.