The working classes are more inclined to be less willing -or able - to disabuse themselves of such obsolescent notions as "One has to love the person before lovemaking is possible, " rather than today's conception of "performance, " which is being able to mount anyone, anytime and anywhere, for no good reason at all.

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The 25-year-old architect says these specially-contoured walls and floors would make the difficult positions in that ancient art of lovemaking doable.

NPR: Plans for Sex Museum Create an Uproar in Rio