The first time I played doctor I was 7 or 8 and was with the next door neighbor girl. She was 2 years younger than I was. We use to talk all the time after school and we both were curious about playing doctor. I had one of those doctor kits we all had back in those days so we decided to exam each other. My parents worked until after supper so I had a lot of unsupervised time. So we went to my bedroom to do the exams. She was really nervous and shy about this so I told her I would go first. I got my kit out and told her to undress down to her panties. She was wearing a blouse and a skirt. I had her sit on the edge of the bed and I used the stethoscope to listen to her heart and then I had her lay down. I felt her little breast and stomach rubbing them like I knew what I was doing. I told her that I was going to have to examine her below and take her temperature. I had her roll over, I slid my fingers under the elastic waist band of her her white panties and slid them down, I took them all the way off, she was laying there stark naked. I took the plastic thermometer out of the kit and spread her cheeks. I was looking at her anus, the first time I had ever seen an anus, nice and pink and tight. I slowly sled the thermometer inside her anus. Not having, or knowing I needed lubrication, I inserted it very slowly, rubbing her checks to get her to relax. Once inserted I asked her how it felt, she said OK. I left it there for a minute and then took it out. I told her she needed to roll over so I could finish the exam. She rolled over and spread her legs just enough that I could easily check her vulva and spread her lips to see her urethra. After spreading her lips and rubbing the area, not knowing what a clit was or was for, I slid my hand down to her vagina. I told her she need to spread her legs further apart. I rubbed her vagina and spread her lips apart not knowing again what I was looking at or what it was for. I'm sure she didn't know either. After I finished looking at every part I told her to get dressed the exam was finished and to get dressed. Afterwards I asked her how it felt and she said really good and that she enjoyed it. She said she wanted to do it again. I asked her if she wanted to give me an exam. She was still a little nervous after going through her exam and wanted to wait until tomorrow before we did it again.