After a thorough finger stretching of my patient's asshole, it's time for me to use more clinical-grade modalities of checking patient gimpy's prostate. I bring in an anal probe to thoroughly test out his prostate with the intention of milking him and collecting a semen sample. He is already in chastity as he's needed to retain as much cum as possible for the largest volume possible, and it's time to finally free him from his cage to make the cum extraction a little bit more straightforward. As his doctor, I massage his cock to ensure everything is functioning as it should...