We inflate our slave's Balls

Today Luciana shows me how to properly inject a slave's balls. The slave lies naked with his legs spread wide on the gynecological examination chair. First I thoroughly disinfect his entire genital area. My collegue explains every step to me in detail. She takes the first large syringe, draws up saline solution, finds a good spot and slowly inserts the needle into his scrotum. I watch closely how she injects the fluid. Afterwards I try it myself. I take the next syringe, draw it up with the solution and slowly fill his sack with it. We inject fluid multiple times and fill both testicles evenly. The slave's sack swells noticeably, becoming thicker, tighter and heavier. The slave moans and squirms with arousal and tension. Luciana and I comment on the result and laugh, while we continue injecting, until his balls are large and tightly filled. I am proud of my result and already look forward to filling him up even more in the future.