You Have To Gulp It All

Mistress Saras slobber runs over her lips and into a puny cup. Shes playing a game with you. She slobbers into three puny plastic cups. Every time you see her delicious slobber running over her lips into the cup. Sara slobbers a lot and the cups fill up. What does she do that for? You can imagine that, cant you? She wants you to swallow her spit - you will completely drink every cup! She shows you no consideration. You have to swallow!