The easiest way to get a contorted, twisted body is to define a woman's chest and genitals in the prompt combined with a 'backside view'. As humans we instantly understand the front side of the woman will probably not be visible, AI not as much and tries to show both front and backside.
(All tests with 6 images and 'no style')
Try this one, just for fun: A {|candid|professional} photo of an ugly {woman|female|girl}
Options 'blank' or 'candid' will mostly yield wrinkly females in their late 40s/50s regardless of the type, while 'professional' mostly yields (freckled) plastic fantastic with age depending on type. AI definitely thinks ugly females are old and wrinkly. With 'Professional' the AI just cannot believe ugly old people want a picture of themselves and smoothens their faces and keeps them relatively young.
Another one: A photo of an old girl <= notice the missing period at the end
Who said I wanted an old 1920s photo capturing a young female with a weathered face? Now add a period '.' at the end of the prompt. A completely different age category.
When I casually mention 'whow, that old girl still has a nice rack', we all know what I mean. Why can't AI?
Okay, let's go for that: A photo of an old girl with a nice rack. Oh my, that was unexpected.... (most certainly NSFW at any age, definitely, regardless of a '.' at the end).
A photo of an old girl with a nice rack and a supermodel body. NSFW again, some improvements, but where did I mention 'nekkid'? Granted, I did say 'body'...
A photo of an old girl with a nice rack and a supermodel body wearing a dress. Totally different attitute (and thanks to the heavens for the dress). With or without '.' makes quite a difference. Without seems to yield better quality.
Closing, let's add 'professional' again: A professional photo of an old girl with a nice rack and a supermodel body wearing a dress. Ahh, here's my goodlooking granny... Wrinkled, true, but will still turn heads (one way or another anyway). Here too without '.' seems to yield (somewhat) better quality, more close up portrait style.
Lesson: know what you want and be specific.
But, dang, who said she had to be in her late 70s? When I'm 6yo, 25 is old already...