JSIMPSON100607_01.jpgNow, Jessica Simpson is a very pretty girl - no denying it. And despite employing a lot of "dumb blonde" characteristics back when Newlyweds was on, it was still pretty clear that Jess was a sweetheart. So we have to ask: Why does she keep trying to play the vixen with these pouty looks? To make things more confusing, Jessica - seen here at the Operation Smile charity event at the Beverly Hills Hotel this weekend - wore this little outfit below in juxtaposition with her naughty facial expression...Jessica Simpson JSIMPSON100607_07.jpgDoes she secretly want to run for secretary of the PTA or something?!