Just as the profile title says. 

Only interested in married women or very discreet single women, who are very flexible around meets (in control of their diary). Cannot do weekends. You should be attractive, intelligent, good fun, kinky (somewhat) and be interested in friendship too. I'm attracted to successful women, who know what they want.

Don't want anything serious, have a wife for that. FWB/NSA. 

Discretion is of paramount importance to me and should be to you.