There is an interesting sci-fi novel by Viktor Pelevin "Snuff" who describes an anti-utopian post-apocaliptic society where an English-speaking society "Big Byz" similar to the US flyes in an artificial island over a Slavic speaking Urkaine.
The Big Byz has age of consent of 46 years and there is a debate to increase it to 48 (while the life duration remains the same as now). And many people fuck robotic dolls because of that. There is even an LGBT society of doll-fuckers. And the Big Byz tries to impose that practice on the Urkaine (they even cover in media those of Urkaine who fucks potatoe sacs as sex minorities). There are other interesting things in the book. For example, Big Byz frequently bombs Urkaine under ridiculous pretexts and the elites and dissidents of Urkaine support that. The very name "snuff" if referred to such staged "wars" in whick real people(soldiers) of Urkaine die while in the Biz Byz the wars are used as an entertainment due to their overwhelming technical superiority and absence of any casualties.

Wikipedia article:
http://en.wikipedia.org/wiki/S.N.U.F.F.