A girl, bored and horny, turns to self-pleasure for relief. She's wearing a tight tank top and short shorts, her nipples hard from arousal. She lies back on her bed, spreading her legs, her fingers rubbing her clit through her shorts. She moans softly, her hips grinding against her hand. She slips her fingers inside her panties, feeling her wetness. She imagines a lover, her strokes becoming faster, harder. She's so lost in her pleasure, she doesn't hear the footsteps approaching, or the door opening, revealing a shocked observer.