What was the first object slid into your rectum?

Rectal thermometer for me too!

A rectal thermometer. At the time, I thought mom would never take it out!

A rectal thermometer was first immediately followed by an enema nozzle.

Definitely a rectal temp. I would take it out of the medicine cabinet, look at it, put some Vaseline on it and then insert it. I loved how it felt/feels going in and would move it around - in and out...

Rectal thermometer covered with vaseline

The first thing ever in my ass was probably a thermometer, or a suppository, the first thing I put in my ass was a folded up piece of insulated wire connected to a battery that got very warm as I was looking for different ways to get off while masturbating.

I was around 4 and remember the thermometer being inserted up butt - It wasn't a pleasant feeling probably wasn't lubed enough

I would say most likely a rectal thermometer.

For fun it was a Q-Tip with soap or a liquid soap liberally spread into the cotton swab. The object was not anal penetration as such, but rather to experience contractions and the urge to expel as caused by the soap. The burning sensation was quite pleasant. I started when around 11 years old ...

A glass mortar from a mortar and pestel set.

First item was a thermometer and a bulb enema tip. First fun item was a candle

I think a rectal thermometer and then probably the tip of enema nozzle...

First was a rectal thermometer then I remember suppositories all by my mom I remember how nice it felt so I started inserting things myself I used small plastic toys pencils crayons then as a young teenager moved on to candles small tapers at first then a bit larger but not to big yet. oh how I loved the feeling of things in my rear! I was 19 before I had my first anal experience with a guy! Oh my it was great!!!!!!!!!! He was very gentle at first so not to cause me pain (I never told him about my playing) I have been an anal freak all my life 😃

The first thing was mothers finger , followed by a lump of household soap when i was between four and five !

I am sure that the first thing was a rectal temp... But the first thing I remember as a very young kid is the batt shaped black tip that was well lubed and attached to the red enema bag. I think it was fear but remember Mom holding up my legs and slowly inserting the tip and then the click and my first enema started.....

The first thing i can remember was a bulb type enema by my mother, don't remember my age. I remember a towel laid out on the bed and me laying on my back, she would push my legs back exposing my bottom next she would apply Vaseline next she would fill the bulb then i remember the nozzle sliding in, I remember being scared when she would miss her target and i would feel the stick of the nozzle and the next time she would succeed and the nozzle would go in.

A rectal thermometer.

A suppository at the age of two or three and I hated it. Little did I realize how many more I was going to get over the next few years.

A rectal thermometer.

It was a finger of a friend. She was playing dr with me at the age of 8. Very exciting times we had.

A suppository from mom when I was 3 or 4. I cried, but it gave me a hard on. Then when I was 9, I tried a Vicks nasal inhaler which looked like a suppository with its lid still on while I was in the shower. Bingo, I started masterbating as I pushed the inhaler in and out while thinking of cute girls over their moms knee getting a suppository.

The first thing was a rectal thermometer then the fun began ...

I was about 3 years old at the Dr. office. After the nurse slid the rectal thermometer up my bum, she trapped the protruding remainder between her fingers and began caressing my bottom in a circular motion, creating the most lovely sensation. Perhaps tickling my tiny li'l prostate. I shall never forget that sensation! I began to, after that, find ways of stimulating myself, becoming quite creative in selecting or improvising,"toys", to play with.

The first thing and only thing I remember being inserted into my rectum was the soapy nozzle of a red bulb syringe. I'd be laying over my mother's lap, naked from the waist down, focused on the nozzle entering my anus two or three times per session. I clearly remember not liking or disliking it. It was just a fact of life. I was only given enemas till I was school age, yet in those few years I developed an interest in enemas which continues today.

When I went into the hospital for hernia sugery I was 6. I got into my gown and jumped into bed and the nurse said ...no so fast and told me to lay on my belly and don't move...the next thing I felt was my cheeks spread and the thermometer sliding in my tiny butt...right in front of mom and dad...it did feel good though.

The hard white plastic tip of a red squeeze bottle. I was about 9 and staying at my grandfather's and found it in his bathroom and knew right away what it was for!

The first thing I had in the bottom, was a fever thermometer and then a suppository

When i was young it was a pencil then it was a finger then it was anything round and smooth

First was my finger, then the glass thermometer and then the nozzle of a bulb. All felt so good !

I believe my first time, when very young, was after going to the toilet I noticed that wiping was mildly pleasurable. I started experimenting with pressing the toilet paper slowly into me. The transition from normal hygiene to eroticism was subtle, but definite.