Periurethral cleaning

I had to cope with this procedure in several occasions when my genitals had to be cleaned to limit bacterial contamination. Generally a green drape with an hole in the center is applied exposing only testickes and penis. The nurse started rubbing scrotum then penis with saline solution and a gauze. Finally she retracted the penis and started the same directly on the glans with specific attention to meatus. For a few seconds the procedure went from a simple cleaning with a little embarassement due to nudity to a torture of pleasure and overstimulation I have to suffer for my good.

It happened in several occasions: urethral swab, cathetherization, transurethral US and my glans surgery. The nurses used saline solution but also polyvidone iodine rubbed from a cotton swab kept with a pair of forceps. This add a bit of burning feeling and a scenic orange coloring of the operating area. What are your experiences? What disinfectant and instruments the nurse/doctor uses for your periurethral cleaning? What are your feeling during this magic moment?