Within a short amount of time you quickly decide to enlarge your ass. You grab your wand and point it towards your rear and say "I wish my ass was bigger". Quickly you rush to a mirror to get a better view of it happening. Your butt begins to feel warmer as it slow starts to round out from its original flat shape. You grab a cheek as start to get aroused by the process. Your ass is getting bigger approaching, the size of basketballs.
With such arousal you slowly begin to rub your massive dick with both hands. You notice that not only is your ass but your thighs are getting slightly bigger. Faster and harder you rub your cock as you are even more aroused. Again you notice your ass is much bigger it appears to now be approaching the size of beach balls. Now your big'ol rear cushions are so heavy that you fall back on then with a nice and comfy landing. You blush at the fact that you fell over not in shame but in excitement of how large you are, this is just making you even more horny. You rub your dick even harder and begin to fell an orgasm coming.
You pump your cock faster and faster until you finally release your massive load of cum out of your huge dick. You reach your arms back and grab your overgrown cheeks and blush even harder with the excitement of your new huge ass. Shortly after you start to think to yourself what crazy thing should I do know ?