Not necessary. The most common misunderstanding for the 1 hour session is that customers expect the girl to stay the entire hour but actually payment made is for 1 cum and the 1 hour period is the maximum time frame allowed. The time frame is there because sometimes customers are drunk or unable to cum immediately. Once the customer cum the job is considered done and the girl usually moves on to the next job, however, the customer can request the girl to stay a little longer but second rounds are not allowed. If you wish to have more time with the girl a better way is to spend time with her before starting the session.