You probably didn't hear a word about his beefcake paintings, but Velazquez was also a master of the muscular male form.
This John the Baptist in the Wilderness (1622) developed some nice biceps on his diet of locusts and honey.
When you see reproductions of The Triumph of Bacchus (1628-29), they usually zero in on the three drunk workers, Los Borrachos, leaving off the beefy Greek gods who are providing the wine.
Apollo at the Forge of Vulcan (1630) also introduces a Greek god into a modern, realistic scene. Are we supposed to find those blacksmiths grotesque? They have obviously been working out!
Maybe I would have liked Spanish class a little more if the teacher had brought up the beefcake instead of pontificating on the multivarious points of view in Las Meninas