About a year ago I discovered rectal temperature taking as a domination tool in my marital relationship. My husband began as a very reluctant participant, but with firmness on my part he has if nothing else accepted the practice.
My interest was sparked quite by coincidence. My husband was experiencing flu-like symptoms. A doctor friend of mine agreed to stop by to have a look at him on her way to an appointment. I was not paying much attention while she checked him out. At one point I left the room. When I returned I was just in time to witness him rolling over on his stomach followed by the doctor pulling down the bed sheet, tugging his underpants down to his knees, and after lubricating a thermometer spreading his ass cheeks and inserting the instrument into his waiting rectum.
When she spread his checks and inserted the thermometer I noticed he buried his face in the pillow. My initial reaction to the event focused on his embarrassment of having to lay there exposed to a strange woman who just shoved a glass tube up his ass. I also thought about the complete control the situation gave her over him and his associated submissiveness.