My first memory of a hospital supp was when I was probably around two years old because I remember I was wearing a onesie. I was lying on my back and the nurse unbuttoned me and lifted my legs. She slipped the supp in, buttoned me back up and rested my legs back down. It felt so weird to have it inside me.
The second time I got one in a hospital was probably when I was three or four years old. I felt sick and threw up in front of a nurse, who then asked my mom if "she needs a suppository?" and of course she said yes. I somehow knew what she meant, even though I had never heard the word before, because I got them at home whenever I had a fever. I was dreading it, and I would have happily rather been sick than get something slippery, cold and weird put into me.
I was complacent, though. The nurse had me lie on my left side with my knees all the way up to my chest. I saw her lubricate the suppository, probably Tylenol, and then I felt her press it against me - it was surprisingly cold, and I gasped, so she asked if I was ready. I said yes, and she pushed it up into my bottom with her finger partway in, and told me not to go for a while. I was always irritated and wondering why they didn't just give me pills. Adults never realize it, but children, even young ones, have a sense of shame and really I would have much preferred a shot or a pill at the time.
The third and final hospital supp memory that I have, was when I was about six or seven. I was hospitalized for dehydration; I had caught a virus, but I was feeling fine and I don't recall having a fever. In spite of this, a nurse came in and told me to lie on my side, so I curled up on my right this time. I clenched up tightly in protest, but she asked me to relax. As soon as I did, she pushed the pill well up into my bottom, and withdrew her finger. I felt it start to come back out so I told her. She pinched my cheeks shut and I felt it glide back up. Then she left.
I love them now, in a weird way. It was humiliating to have them administered by a parent, but it was only mildly annoying in the hospital by nurses that I didn't know and would thankfully never see again. Can't believe I'm saying this, but I wouldn't mind repeating some of those experiences. Somehow - maybe as a form of defiance - my mind turned something that I absolutely hated into a huge sexual turn-on that was strong enough to become a fetish.