I'm sorting my artwork collection folders and I sort non-sexual pictures on the poses the characters are doing. This is a very popular pose but how the fuck do you call it in a few words? I don't want the folder name to be absurdly long.

So far I've come up with:
a) Kneeling (Leaning)
b) Sitting Sideways
c) Leaning on Thigh

Which one makes the most sense? Or, is there something better?