The David P. McWhirter, M.D., and Andrew M. Mattison, M.S.W., Ph.D. study reported in their 1984 work The Male Couple: How Relationships Develop stated that in regards to relationships involving male homosexuality that "all couples with a relationship lasting more than 5 years have incorporated some provision for outside sexual activity in their relationships."[81] [[User:Conservative|Conservative]] 19:03, 21 September 2011 (EDT) | The David P. McWhirter, M.D., and Andrew M. Mattison, M.S.W., Ph.D. study reported in their 1984 work The Male Couple: How Relationships Develop stated that in regards to relationships involving male homosexuality that "all couples with a relationship lasting more than 5 years have incorporated some provision for outside sexual activity in their relationships."[81] [[User:Conservative|Conservative]] 19:03, 21 September 2011 (EDT) |