What was the first object slid into your rectum?

No experience when young, but in my early 30s I had a very early prostate cancer scare (negative) but the test they did was with an ultrasound wand. I remember being totally freaked out because I saw the want being prepped before I was to lie on he table. Much to my surprise it was no big deal at all. I remember the doctor telling me his previous patient had jumped off the table when it was inserted!

The thermometer. Mom did it anytime she thought it needed to be done. I remember coming home from school and her looking at me and telling me to go straight to the bedroom and remove my pants and shorts and she would be right in. We would have to lay over the end of the bed feet on the ground. Before that it was in her lap. She would keep a notebook with dates and times and the temperatures.

I think it was my finger 😃

For me it was mom's finger and enema nozzle, then my older sister's finger and enema nozzle, then my own and a college roommate's finger and currently Laura's finger and enema nozzle. Good going.

I'm going to guess a thermometer. That was the first thing I myself ever put in my rectum anyway.

It was a long time ago now, but it was the handle of a screwdriver when I was around 16 years old. It worked but did hurt a little. The next time I was a bit more conservative and used my finger.

A larger screwdriver followed soon after.

I still have one of those screwdrivers and I smile when I see it in the toolbox. Maybe one day, it could find a way into my "other" toolbox 😉

For me, I remember playing with tampons. Fun to put in, not so much on the way out. Then found a douche bulb in the upper cabinet of the bathroom. That worked and started me down this alley.

Enemas are not really that much of a turn on to me, but I would say that yeah, an enema was the first object in there and then the second would be fingers followed immediately by some sex toys or things used as sex toys.

Mommy's black enema nozzle

First thing in my butt was the index finger of a girl who loved to try that. In "exchange" for this, she let me try anal sex with her. Very nice memory! But it was not my first anal experience; I mean I was always highly attracted by girls' butt and when I was a child I always whated to play with my garden-mate Cinzia, who loved to feel her anus touched. I loved to feel my finger inside her thight warm butt

I have posted on this subject before but if you mean solo i want to say my fingers. Ones i started craving enemas at age 11 ir so i want to say before my first solo sneaking enema i remember having the urge for something in me and i would slid my fingers inside myself. The craving started soon after my enemas stopped. At night under the sheets i would wet my fingers and push them inside myself getting myself hard .on my first solo enema i knew i liked it but was so nervous and confused. But still doing it. By my 4 or 5th solo i decided to use the much larger feminine douche nozzle one i slid in in and felt the amazing spraying sensation it took over me...

Funny as I'm writing this I'm swelling in my cage

Not really sure but I think it was the plastic handle on the toilet brush cleaner

It depends on the period of my life and status.

The first foreign object that ever ended up inside my butt was most likely an enema bulb nozzle, laxative suppository, or soap stick, when I was very little (a few months or even weeks old). I don't remember that; even slightly later enemas and suppositories only leave me with the vaguest and most fragmentary memories.

The first object I definitely remember being inserted into my butt was a cotton swab used to take a rectal swab from my butt in kindergarten, when I was about 4 or 5 y.o.

Finally, the first object I inserted into my butt myself, as part of anal play related to medical fetishism, was a glass mercury thermometer, which I started playing with at age 12 y.o. (I never had my RT measured for actual medical purposes as a child).