Some within the sexual health community have argued that the best way to resolve a sexual difficulty is to 'practice' with a substitute partner. If sex surrogacy isn't prostitution, then how do we define the exchange of sex for money?

As a sex therapist, I see men every week who don’t get erect when they want to. Sometimes Viagra is part of the problem—it reinforces the idea that there’s something wrong with their penis, which the Viagra is supposed to fix. But if there isn’t a problem with the penis, Viagra can’t fix it.