yes, very cool you're a FF.
now, dear, those handheld machines can vary by +/- 15%. you're not 12%, probably more like 20.
good news is, your BF seems to be pretty evenly distributed, and I still don't see the need for crazy dieting before the shoot.
I know you need to be on your game for work, just pay more attention to not eating shit food, look up some water/salt/carb manipulation that figure competitors use before a show and you'll be fine.
dunno how intimate the pics will be, but starting a couple weeks before, exfoliate and moisturize the fuck outta your skin. go for a wax a week or so ahead of time (maybe less than a week), and get some Tend Skin. <-- burns like fuck but worth every penny.
you look olive-ish/tanned already, so do that as you see fit.
and, nice tats.