This is a work of complete fiction created only by my own thoughts!
My mother had always taken my temperature rectally. Even now at 19 years old, this is what she does when I am sick. She never did it in a way that was embarrassing or degrading. And as I got older and had sexual urges, I began to enjoy it. Mom never made a big deal about me having a hard-on. My cock was nothing special - about 7" long and 2" in diameter. Circumcised.
I had come home from college for the summer and felt ill. Mom noticed I was not my usual energetic self and asked if I felt ok. I told her I felt unusually tired. She said she was going to take my temperature and went to get the thermometer.
When she came back, she sat on the couch in the study and patted her lap. I dropped my pants and proceeded to lay across her lap. She put on some exam gloves and spread my cheeks apart. Just as she was beginning to apply lubricant to my anus, the doorbell rang. She looked at her phone and saw it was her friends Susan and Courtney.
Mom told them "Come on in! We're in the study. Just come on back."
I was a bit apprehensive about this because I was not used to being naked in front of a group of women, much less with a thermometer in my ass! From the look of surprise as the ladies walked in they were not used to it either!
Susan was in her early 40's with dark hair and blue eyes. She kept herself in great shape. She has beautiful breasts - a C cup and a fabulous ass. I always like to look at her ass. I rarely ever saw panty lines, so I guessed she wore a thong. And the little crease where her upper thigh met her ass cheek was always nice to look at. When she walked, her hips had this mesmerizing sway to them.
Courtney was in her late 40's with blond hair and gentle green eyes. She was also in great shape. It was not too unusual to see her without a bra so I know her breasts sagged a little but had small hard nipples. Their shape was still great and they were smaller than Susan's, so I would guess a B cup. She had a great ass and a habit of bending over at the waist to look at things. This served to push her ass out and caused the clothing she had on to reveal her panty line. As a result, I know she wore small panties - but not thongs.
I should also tell you about my mom, Sandy. She is in her mid 40's. My dad was killed serving in the military when I was 10. Everyone says he died saving a bunch of other guys and I should be proud of him. Mom dated on and off for a while after that, but never really clicked with anyone, so she stopped. She has black hair with deep blue eyes. They are hypnotizing at times when I look at her. Her breasts are an amazing B cup - no sag at all. Amazing shape and areola just a bit larger than a quarter with small but stiff nipples. Her stomach is flat and her ass is always enjoyable to watch. She has this way of standing that just makes her whole body look so amazing. She rocks!
I did not lust after any of them, nor was I unaffected by these amazing women! They were in better shape than many of the girls in college! And they were all genuinely nice ladies! Kind, polite, caring. I have known them all my life as they have always been friends with my mom as long as I can remember.
These were the women that raised me. They all helped me grow and become who I am. So I could not deny they were hot, but I did not lust after them.
As I said, they looked quite surprised to see me laying across my mother's lap, pants down and her spreading my cheeks apart with one hand while she applied lubricant to my anus with the other. They looked at mom and she said to come in and sit down. Mom explained she was taking my temperature because I seemed a bit sick. They said they had never taken a rectal temp before. Mom asked if they would like her to show them how and realized she had not asked me.
Mom asked if I would mind being a 'teaching aid' for them and I said "OK."
They were all very pleased and mom directed Susan and Courtney to put on gloves. I could not help but to look at their asses as they turned away to get the gloves. When they turned back, I could very clearly see their hard nipples and the look of excitement in their eyes. My cock gave several strong throbs that I know my mom felt. I know she felt them because she always placed my cock between her thighs.
Mom has been putting my cock between her thighs for many years now. I don't really recall exactly when it began, but I think it began shortly after my dad was killed. At that point, it was never really sexual. Mom never did anything sexual with me. It may have been erotic, but neither of us acted on it. She seemed to enjoy it and I know it simply made me feel comfortable.
Mom would always look at my erection and say 'Looks all healthy and normal.' then call me to lay across her lap with my cock between her thighs.
At this point, Susan and Courtney were standing beside me. Mom began to explain how important it was to lubricate the anus for the thermometer to slide in easily. She got a bit of KY on her finger and then massaged my anus.
She explained to them that they should take their time and not be rushed. Let my anus relax by taking slow gentle strokes. Then, as they feel my anus relax, remove the finger, apply a little more lube to my anus and slide just the tip of the finger in. Just up to the first knuckle and move it around. Circles, in and out a bit, whatever they want. But wait again for it to relax.
Once you feel it relax, then remove it, apply a bit more lube and again insert to the first knuckle. Move it a bit more to relax me again, and then finally begin to slide your finger in and out, going deeper each time you go in and removing it to just the tip before going back in. Once her finger was buried deep in my ass, she moved it around a bit and then removed it.
A moment later the thermometer was inserted and held in for the required 3 minutes. As the thermometer was working, Susan and Courtney asked many questions about the procedure. I did not really listen as I was looking at them, thinking about their bodies, and enjoying the feeling my mom was creating. She had never done this for such a long period before. And it **excited** me a lot!