He said only he cums. So I don't release anything.

EXACTLY!!! My orgasms happen several times during service. When I sniff his pubes. When I lick the soles of his feet. When I suck his nutts. When I throat his big black dick. AND when he cums down my throat!

I have learned that is true. My purpose is to serve and support. Master said my pleasure comes when he uses me for his pleasure.