When I complete a level and unlock something in the Body Modification category, it doesn't stay unlocked. So, when I unlock the stars, then I complete a level, it doesn't stay unlocked. Also, this may just be option 1 being the default body, but I don't see any change between option 1 and no option 1.
Also on a side note, this version's gameplay is a lot better than PervSight's. The extra notification to give you a chance to turn off your phone is good, and having there be a star meter that acts similarly to the attention meter but never goes down is an amazing design choice. Will definitely be playing this a lot.