The War of Attrition

Mankind has reached the stars and found them hostile. Humanity is fighting a war that spans the galaxy. We share equally strong weapons and ships as our enemy. The only way we survive is if we out procreate our enemies. So Earth started a new program, "The eugenics farm." This is meant to take the best genes humanity has to offer and mass reproduce those genes. You are one of those who were selected. As you approach "The farm" you are given your assignment: have as much sex as you can.