This is a world much like our own. It has the same technology, the same basic culture, the same science. There is, however, one key difference between this world and our own. There's a certain phenomenon which makes no scientific sense. It has existed as long as humanity has, and for thousands of years people have wondered why this happens, with no success. In this world, this Other Earth, size is tied to favors. You do somebody a favor, you gain some of their size, and they lose an equivalent amount. This has led to pleasant tempered, generous people growing massive even as selfish people shrink smaller with every favor they ask. Bigger favors lead to bigger size changes. Loaning someone a dollar will make you grow an inch or so, while helping someone move would be much more significant To you, this world is normal. Changing size with favors is as natural as the sun rising in the east. This RP is pretty free form. Not much femdom here, more gentle giantesses for