Anastasia and Penelope are dating psychologists Diana and Hector, only to find out Diana and Hector are married! Yet that is not the only little secret these two have. An ancient artifact allows them to steal the size of the patients they seduce and then transfer it to themselves!
In this story, humans are genetically engineered to improve some of these main attributes: SIZE, BEAUTY, HEALTH/AGILTY, INTELLIGENCE. But we all know that nothing is gained in exchange for nothing, so when some of the attributes are artificially improved, the other attributes are diminished.
The result: gigantic beautiful idiots, tiny geniuses, and everything in between.