On day 18 now of my prop only cycle. Started at maintenance cals for first week and a half. Have lost almost an inch on my waistline while weight staying the same, albeit having the normal fluctuations. Diet however is very clean and strict and have my own formula for a weekly carb cycling protocol...
My strength is increasing all the while arm and chest measurments are increasing steadily...I can really notice myself leaning out just from looking in the mirror. That combined with weekly caliper readings and monitorings show that I have went down 2%'s in BF while my weight is the same, as stated above...
So IMO, if its' your first cycle, have your diet mapped out and to a "T", as well as your training, yes it can happen. However, the reality of it happening all the time and w/o proper diet evaluation, etc, don't count on it...genetics have a lot to do with it as well...