I wanted to take a shot at restoring this, duplicated original layer, adjusted levels and contrast, pretty much, just used the cloned and healing tools, copied and pasted new pair of pants for boy on right, added a little noise to that layer and lightened the pants to closer match the original ones. Painted in the rest of the lady's legs and then I had to stop. If I get time this weekend, I'll try and finish it up, it's still a long way from finished.
By the way, welcome to
RP Fran.