I don't know. I have some fairly complex thoughts here, but I'm coming at it as someone for whom there is evidently something deeply weird going on with their whole perception of this category of sensation - I don't find opioids at all pleasurable, either, and it was only a few months ago that I found out how unusual that is. Not that I'd try to change any of this even if I thought I could, but I suppose it doesn't really equip me to talk on the subject in a way that'd likely be of use to anyone normal.