I would play dr with my brother when we were young. After I moved away from home, I always took my temperature rectally. When my wife and I got married, I was still a paramedic, so she always defers to me on medical issues. Right from the beginning, I told her rectal temperatures were most accurate. I have always taken hers rectally, and sometimes she will take mine, but at first she didn't seem to like it. There were times when she would be feeling sick and I would offer to take her temperture and she would say she didn't need it taken, she just wanted to rest. I usually convinced her that it was better to know than not to know. When we were trying to start a family, we had some fertility issues, so we had to chart her basal body temperature. It had to be taken immediately upon waking up in the morning, before she moved around. For several months, we kept the thermometer by the bed, and every morning as soon as I woke up, I would shake it down. lube it up, lower her panties, raise her butt cheek, and slide the thermometer into her rectum for five minutes. She never complained because she knew it was necessary. After a while, we had to get into more advanced treatments, so the basal temperature taking came to an end. We still took exclusively rectal temps, however, although she still didn't welcome the idea, although she knew how aroused the process made me, and she usually got the benefit of my arousal.. The last few months, she has had some issues with medications balanced and she has frequent crashes, where she gets weak and unable to get out of bed. She usually feels feverish, as well. So at least once a week, and sometimes more often, I take her temperature. Even though she feels hot, her temperature usually is low normal. Recently when I suggest we take her temperature, she goes right to the bed, lies down on her stomach, and lowers her jeans and panties without comment. A few days ago, she was in one of her crashes and I took her temperature with an electronic thermometer. It showed no fever, but she felt very warm and said she felt feverish. I said, "This can't be right. Maybe I should recheck it with a glass thermometer." She replied, "You can if you want to." This last weekend, she was out of town on a business trip and asked me to meet her at a town 150 miles from here to switch cars, so she could drive the more fuel-efficient one. We met and got a hotel for the night. As we were getting undressed for bed, I told her, "I brought the thermometer with me, in case you aren't feeling well." "I'm fine," she replied, "but you can take my temperature anyway." I got the thermometer (a veterinary one) out of my shaving kit, took it out of the case, shook it down and lubed it with Vaseline..Then I sat on the bed and she lay across my lap. I parted her cheeks, and gently slid the thermometer into her. After five minutes, I pulled it out, wiped it off and read it. It read 97 degrees. Then she said, "I could take your if you want me to." Naturally, I agreed. I shook the thermometer down again, swabbed it with an alcohol pad, and stabbed it into the Vaseline jar and then handed it to her. I placed myself across her lap, and she spread my cheeks and then inserted the thermometer and left it in place for five minutes. She then took it out and handed it to me to wipe off and read. Needless to say, the sex that followed was fantastic. Life is good!!