As the sun set over the city, Sarah found herself feeling restless. She couldn't shake the desire that had been building inside her all day. Mast sex. The words echoed in her mind, urging her to give in to her primal urges. She slipped out of her clothes and lay back on the bed, her hands roaming over her body as she imagined the touch of another. The room was filled with the sound of her soft moans as she brought herself to the brink of ecstasy. Mast sex had always been a secret pleasure of hers, but tonight, it felt more intense than ever. And as she finally succumbed to the waves of pleasure crashing over her, she knew she would be back for more.