Spitting Femdom

Katharina is exercising, and you can see her muscles work. She suddenly stops and stands up, turning her well-built body towards you. She hacks up a big glob of spit towards you, who are her human spittoon. You must swallow what she gives you, or she could easily subdue you and make you pay for your insolence. She needs a receptacle for her spit and you are it.