Suppository orgasm

Something odd happened to me yesterday. Been on holiday and limited privacy for Masturbation. I have been super hory for a couple of days and have spent a lot of time chatting to people about fetishes and prostate play - so I basically worked myself up. From all the traveling I started to get constipated, classical scenario. I decided to go out and buy some glycerin supps and use them. But I was a bit horny and kind of played with the process. First I took the torpedo out and admired the size and translucent color - they are larger and clear compared to the ones back home. I then placed the supp at the entrance of my asshole, in my crack and pulled my briefs up. I enjoyed the foreign object feeling right at the entrance. It started meting and moving a bit, but these don’t seem to melt as fast as the ones back home. I kept feeling the torpedo through the fabric of my briefs and kept manipulating the tip to kind of insert just a bit. This went on for a couple of minutes. Partial insertion and then let it slide out again. After a while, I must have relaxed and pushed it in a bit too far, my butt swallowed the supp and the spasms and pressure were almost immediate. Remember been sliding it in and out for a bit so I think some glycerin got inside… all of a sudden I felt the classic Orgasm spasms in my pelvis, slowly but steadily building. I tried to relax but it only delayed the inevitable. After a bit my cock got rock hard and I ejaculated in my shorts. Has anyone else experienced something like this?