I find it erotic to be touched my another man when we are both naked and free to explore. I believe a man knows how to pleasure another man best, the touch, the stroke, using all body parts. Starting slow, more of a tease and then going harder and longer.
I much prefer to describe how I like to massage another’s manhood. Start slow holding and cradling penis and testicles and warming it up paying attention to breathing and response to every stroke and passing my hands and fingers to the head and shaft. The use of warm oils or creams to make easy gliding soft to firm manipulations. Palm to palm strokes using various techniques to build up the energy to release and ejaculate.