In the sultry world of Sumitup's Japanese Blue Lipstick, a mysterious woman, her face painted with bold, blue lipstick, entices her partner with a seductive, spit-laden gaze. She's an expert in the art of spitting, her saliva a lubricant for the intense, taboo acts she loves to perform. With her partner kneeling, she spits onto his eager, awaiting body, marking him with her saliva as she would a canvas. The room echoes with the wet sound of her spit hitting its target, and the smack of her lips as she builds up more saliva to cover him.