“Brian is an investment banker in his early forties who, in graduate business school, first began to visit prostitutes, spend money on phone sex, compulsively masturbate and, eventually spend as much as 5–10 hours a day looking at internet porn. When sexually acting out, he would feel that his brain was turned on. When viewing internet sites, he would suddenly feel alive. He had energy and felt the euphoria that sexual immersion seductively provides. His mind slowed down; he didn’t need to keep moving.
“Since his teens, he had masturbated nearly every night before going to sleep and sometimes once or twice during the day as well. He was shy in school and dated infrequently, partly from his feelings of inadequacy and partly from fear of having to respond to another’s demands.
The full article is here: The Vicious Cycle of Compulsive Sexuality, Shame and Adult ADHD
Note: Though the original article is a few years old I thought it might still be of interest.