The most muscular pose has split female bodybuilding since female muscle legend Bev Francis single-handedly introduced it to the sport back in 1980.
The Australian was first snapped hitting a most muscular while still a competitive powerlifter - initially in a magazine interview celebrating her becoming the first woman to bench press more than 300lbs in competition.
Her massive physique shocked both the bodybuilding and non-bodybuilding world, defining as it did new possibilities in female muscularity.
Happily for her fans, when she switched to female bodybuilding the most muscular pose became Bev Francis' definitive stage shot. But many Pro's think it weighed against her in when it came to judging as it was considered too extreme.
In the intervening years the most muscular, or 'crab' pose all but disappeared from female bodybuilding as the sport sought to redefine itself. Critics believe this was largely to please advertisers and marketing men.
But now 23-year-old competitive female bodybuilder Jess Williams is set to change all that.
Denver-based Jess, who has been training for eight years flexes a pair of 15 inch biceps and her quads measure a shade under 25 inches.
She has a fantastic back and thick, powerful traps which lend themselves to a great most muscular pose.
She says she sees the crab pose as a beautiful display of pure muscularity – in the same way as it is in men's bodybuilding – and she is determined not to allow it to be consigned to the dustbin of female bodybuilding history.
She added: “I really hope to bring this pose back to the sport. I think it's ridiculous how they prevent the women from doing it because they think it's too masculine.
“I love the early days of female bodybuiling. I think the women in the early 90s had a really good look. I love Bev Francis, she's my idol in the sport.
“Bev competed with a physique which was how SHE wanted to look, she had this really dense physique and a look I really enjoy.
“When I won the Novice Light Heavyweights in 2009 I was allowed to pick my favorite pose to celebrate with so I chose the most muscular. It was my way of saying, Bring the most muscular back to women's bodybuilding!”
Jess, who is rapidly becoming a YouTube female muscle legend, is now targeting the national stage in a bid to become a Pro bodybuilder.
But, like many women trainers, she first turned to bodybuilding in a time of crisis – as she struggled with anorexia as a teenager.
She said: “I was borderline anorexic at the time I first picked up a weight in a weight training class that I had signed up for in my high school when I was 15-years-old.
“The more I trained the more I fell in love with bodybuilding and the positive changes that I was seeing with my body. From then on. I was hooked and I found that I loved to lift heavy!
“Bodybuilding saved me from going in an unhealthy direction in my life. It gave me a drive, passion, and excitement and is something that I find very grounding for me.
“Bodybuilding is more than just the look it's the whole experience that keeps me doing what I love.”
“Also I love having a body that I am proud of and always improving on.”
Click below to watch Jess pose and get her thoughts on the most muscular pose