Gather round, kids. I'll tell ye of a tale...
Once upon a time, there was an old clockmaker named Gepetto. One day, he decided to make a beautiful girl. So he did. She was stunning!! But alas, she was made of wood! So that night, Old Gepetto wished upon a star for his little Jennochio to become a real live girl. A fairy came down and said, "Good Gepetto, it is so. But it is under one condition: She must not tell a lie!"
But Jenna probably told a lot of lies somewhere down the line, because when she tells a lie, her boobs get bigger. But one day, she will, indeed, be a real girl.