1879: The typical Victorian gentleman liked a woman who was pear-shaped. (Completely pear-shaped; the dress in the picture above is skin-tight and would have caused a sensation at the time.) He also liked her to be all squishy like a pear, available in shops like a pear and to be completely still and stoically silent during sex, just like a pear would. Often they would just have sex with pears.
Over the years, men's preferences would change, from the pearshape, to the hourglass, to today's popular 'flesh plank with two melons nailed to it' look. Of course, having sex with pears would never go out of fashion.