My male patient is bound and unable to leave my clinic. He wears a strait jacket that I've chained to the ceiling. He is not getting away from my medical table! I have locked him in chastity as well. I tease him by grinding my ass on him. His cock throbs through the cage. I know exactly how I am using him today! I am going to take a sperm sample from him. I grind on him more to get him riled up before I unlock him from the chastity cage. I then use a pocket pussy to really rile him up. He orgasms in no time. I collect my sample easily. This is just the start for my male patient. I am going to collect sample after sperm sample, draining his balls.