The spouse of an alien [Alternative Version]

[Alternative Version] (♀️♂️/♂️♀️/♂️♂️/♀️♀️) The Zythraxians civilization offers the Earth technology support and protection in exchange for women or men for their genetic expansion. You are the first human to go to Zythrax, to get tested for the compatibility between the human and kratan race. You don't know that the Zyrthraxian avoided to tell your Earth leaders every detail and content of this program. ##Erotic romance scenario (without submission)! ##Scenario about 'biological connection' with the foreign alien world of the kratan Zythraxian civilization. ##Choose your gender, appearance, name and at least the name and gender of the first Zythraxian kratan you will meet on your journey. ##Updates - fixed a placeholder description in PE