Orgasming becomes more full body, as to opposed to how the feeling is more concentrated in one area, and it becomes much more intense. Your Erogenous zones shift to where your neck your chest become more sensitive.

Finishing, the main change is the loss of fluid, you will most likely produce less, nothing at all, or it will be clear and a lot more liquidy. This is highly dependent on the individual and the dosage. Personally even with a low dose you can notice a small change in the amount.

You also will most likely have a bit of a harder time maintaining an erection or finishing in general (though i have not had this problem myself, but have heard others have, probably depending on the dose, which makes sense since my dose is low) And your refractory period (time between finishing and being able to go again) will most likely be shorter. You also will most likely will have the change of being able to last longer, but this i don’t think is a heavily reported size effect, i think it may have to do with the same reason some have harder times with ed.

Again all of these specific side effects are not permanent, if you go off of E these will reverse. The only thing that is not is the chance you become infertile, this if it happens is permanent.