A suggestion/request to the sims artists; What about a classic posing suits for Marvine and Beosboxboy superhero,bodybuilder,atlete and slim like this at the sites:
http://posingswimsuits.com/
http://www.andreascahling.com/mens-posing-suits.
Other suggestion (I really don´t know if is possible), a realistic skin for bodybuilders above with the striad muscles,contrast and veins.
Best Regards!