As Mattdm and Hugo made me realize I need new glasses Xo) I'm posting another answer. Probably you can mask the light. I would construct a masking box  This image is just a panel, but it is the general idea. Lets say you construct a pvc pipe box 2x2x.9 mts. (the .9 mts depends on the leinght of black cardboard you can find) and place it a little far from your softbox (or direct light), to mask the light in diferent specific points. This can be time consumming but can be interesting. If you have several heads you can use a verey directional light to specific areas, using snoot on each one. I would also play with the clothing and posing.