Most human resource professionals will agree that the discussion of anything related to sex, anything sexual in nature, anything regarding sexual preference, and topics, regardless of current societal relevance, around gender/non-work-related activities have no place at work and are discouraged lest they make anyone uncomfortable in the work environment. This is why these topics are discouraged in the work place. Anyone that is made to feel uncomfortable because of a sexual discussion, even if they over hear it, have cause for a law suit.