It shall be unlawful for anyone to engage in, operate, manage, conduct, or carry on a model studio without a valid, nonsuspended license issued pursuant to this Division. It shall be unlawful for any person, in a model studio, to place his or her hands upon, to touch with any part of his or her body, or to fondle in any manner, an erogenous area of any other person. It shall be unlawful for any patron or customer to disrobe or to expose his or her erogenous area, or any portion thereof, to any other person while on the premises of a model studio. It shall be unlawful for any person owning, operating or managing a model studio to cause, allow, or permit in or about such model studio, any agent, employee, or any other person permitted or invited upon the premises to perform any act prohibited in Subsections (a), (b), or (c) of this Section.