It was late July, a hot sticky summer day the whole town was celebrating their annual "Watermelon Festival" a whole weekend devoted to the towns major crop and life Source as far as industry is concerned. They have watermelon eating contests, largest watermelon contest, and best watermelon wine tasting contest. Physical contests such as watermelon toss, and the one contest which is extremely popular with the male population largest melon contest! Young women from the tri-state area join in the festivities, which only the most qualified Need apply, basically well-endowed and attractive women.
Farmer Jones' daughters, Becky, Tina and Wendy, all three are extremely attractive and well endowed, Wendy being the tallest and the bustiest a 43DDx27x35 with Brown hair and Blue eyes. Tina is just a little shorter than Wendy but almost the same measurements, 41DDx30x36 with Auburn hair and Brown eyes, Becky the youngest of the three but by no means less attractive, a very bouncy 42DDx28x34 with Brown hair and Brown eyes and dimples when she smiles. Farmer Jones knows how to grow-em if you know what I mean! If you don't just read the story and I will enlighten you.
It all happened about twenty-one years ago, a silvery orb was orbiting our blue/green planet and collecting information about our civilization and our lifestyles and they became VERY interested in the way we interact with each other, particularly how we reproduce and the fact that we gain so much pleasure from it. The two occupants, "T'al"and "K'ala" are members of an advanced race who are highly evolved in space travel, DUH! They traveled several million light years to reach us.
But they are puzzled about how the majority of us enjoy the experience, which to them is a chore and a duty, and for the good of the whole, creating more workers to mine the precious ore that is needed to fuel their advanced machinery. The desire was gone; they no longer felt the desire to even try to reproduce. The upper echelon of society decided to go on this mission for the welfare of their race because their population was slowly growing impotent and in danger of disappearing from existence.
They started observing men and women and their interaction and wondered if everyone experienced sex the same, they tried themselves but since their anatomy was different it didn't work. They used their replicator to create a human male and a human female to try and understand more about human physiology but they couldn't make the clones interact in the same manner as they had witnessed. The clones were basically shells, they didn't have any spirit or desires so they realized that if they wanted a better understanding of human desires they would have to risk detection and travel to the surface and try and interact with them. They could alter their shape at will, but without understanding human desires they could never understand what humans feel.