British brand consultancy HeadlightVision's report on the latest cutting-edge trends "found that youths were bombarded by sexually explicit advertising to the point where the ads no longer moved them. It concluded that if brands wanted to reach young trend-setters, they needed to use more subtle techniques."
Allison O'Keefe, global editor of the HeadlightVision's report, D-Code said, "Sexual imagery is becoming so mainstream that it is becoming such a regular part of their life that it doesn't break through any more. It's not shocking them and its not clearly marking it (a brand) as youth-orientated or anti-conventional."
There's also more in another article here.