This article accompanies the fable
The painting above is by Jacopino del Conte when Michelangelo was about 60.
For his admirers, Michelangelo's sculptures represent ideal beauty, ideal heroes - like David - wrestled from brute matter in virtuoso displays that reveal the divine. Michelangelo believed that art should be hard, physical, tense and muscular, difficoltà, terribilità, yet indifferent and aloof, throwing out a challenge to the viewer. For his critics, and we can include Leonardo among them, Michelangelo was describing himself and his sex life, where things could get a little rough. To Leonardo, these statues represented self-righteous and pompous Florentine nationalism.
Leonardo's most famous dismissal of Michelangelo was the "sack of walnuts" jibe at the muscle-bound figures like this one (below) of Eve on the Sistine Chapel ceiling. It seems likely that Leonardo would have checked them out when he was in Rome. In 1514 he surely had Michelangelo in mind when he wrote: "O anatomical painter, beware, lest in the attempt to make your nudes display all their emotions by a too strong indication of bones, sinews, and muscles, you become a wooden painter."
The model for Eve would have been male and the breasts added. In typical Michelangelo fashion, there is implicit sexual inuendo in "her" juxtaposition with Adam but, after all, that's why they were thrown out of Eden. Full image here.