I'm in my late forties. Low BMI, not much has altered since youth as I was never the type to build tone or firmness even when very active but I am obviously less toned now though and my posture is appalling.
I am thankful to be healthy and doubt there's anything 'wrong' with me but maybe I really shouldn't have purchased this, er, particular outfit to practice yoga at home (not in public!) 
I honestly did not know how wide my upper thighs were (the pants cut into the flesh and they are the correct size), nor was I aware of the blockish shape my hips make at the back. Unless it's the camera/mirror I look very unfit here. I eat healthy food and am active, but don't do any special fitness stuff. I have just recently decided to try to learn yoga, mostly for posture and flexibility.
I felt dreadful after seeing these, as soon as I stuck those shorts on I didn't know whether to laugh or cry. I never wore stuff like that as a teen tbh.
I am 5'5 although for some reason these images shorten my legs. These shots also didn't capture the dimpling jelly at the back of my upper thighs. Perhaps they look odd because my ankles and calves are so small.
Everything feels soft and flabby even though I am not overweight. It's like being slim but not slim. Is it skinny fat? I certainly do not want to restrict calories at 8 stone 2.
My waist is 25inches, chest 32B. You'd never guess looking at these!
Would you suggest any specific toning exercises I could do to just tone the upper arms and upper legs? I don't have an arse to write home about but surprisingly it's quite ok naked.
I'm ashamed to admit I felt depressed seeing these pics, I know there's MUCH more to life but it just makes me want to buy a wide dress and hide for the summer. This chaps, is why I never wore shorts.