This paper seeks to analyse the expansion of commercial sex through processes of mainstreaming in economic and social institutions. We argue that cultural changes and neo-liberal policies and attitudes have enabled economic mainstreaming, whilst social ambivalence continues to provide the backdrop to a prolific and profitable global industry. We chart the advancement of sexual consumption and sexual service provision in late capitalism before defining the concept of ‘mainstreaming’ applied here. We use the case studies of Las Vegas and Leeds to identify various social and economic dimensions to the mainstreaming process and the ways these play out in law and regulation. While social and economic processes have integrated sexual services int...