Thanks diver Ted that's exactly what I did too :-)
It's just the world we currently live in, now. Shapely girls wear skin tight leggings in almost all situations these days, way beyond 'going to the gym'. Or more accurately, the ones who are feeling bold do that - they are such revealing garments, both front and back, that it's the equivalent of men habitually walking around in tight cycling shorts showing the exact size of their meat & two veg (a trend which, thankfully, has been far slower to catch on).
The photo opps which gymwear presents produce such flattering images, I'm actually surprised there aren't <
more> of them on AW, to be honest.
But I don't think this is a trend which is diminishing. Quite the opposite. When I have a bit of time I tend to browse the Latest Pictures bit of AW, or I do a Search for Female, Escort+ and Speficic Word 'gym'. And then I put them on here

But it's always welcome when others contribute, such as Greggs CEO
Webpunter and several others of course!