Rob immediately decided to have another test.
This time, he stripped off his boxers and socks, leaving him completely naked as the day he was born.
Rob, he pressed his belly button and started growing.
He grew till he had doubled in size.
he pressed his belly button again, and he stopped growing.
He was now bigger and naked.
He grabbed his sock and tried to put it on. At his size, it only seems to fit on his pinkie toe.
Once Rob got his small sock off, he set his belly button to 'shrink', and one press of his button shrunk him right down to normal size.
Then, he went to bed, in just his underwear, and wondered what fun he could have in the morning.
The next day...