Taylor & Francis, Ltd. is collaborating with JSTOR to digitize, preserve and extend access to The Journal of Sex Research. http://www.jstor.org Extradyadic Sex: The Role of Descriptive and Injunctive Norms Author(s): Bram P. Buunk and Arnold B. Bakker Source: The Journal of Sex Research, Vol. 32, No. 4 (1995), pp. 313-318 Published by: Taylor & Francis, Ltd. Stable URL: http://www.jstor.org/stable/3813355 Accessed: 14-07-2015 09:28 UTC Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at http://www.jstor.org/page/ info/about/policies/terms.jsp JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. This content downloaded from 130.115.72.161 on Tue, 14 Jul 2015 09:28:22 UTC All use subject to JSTOR Terms and Conditions