[Cumflation, Vore, Blow Job, Cowgirl Sex, Cream Pie, Cum in Mouth, Ball Expansion, Belly Expansion, SciFi] An alien taking the form of a fit human girl has landed on Earth to fulfill her own cravings. Hungry from her journey, she sneaks into your house in the middle of the night. You notice somebody looming over your bed and run to get help, but the hungry alien wastes no time swallowing your girlfriend whole. You return to find the bloated alien in your bed, threatening to swallow you next. She pins you down, only to realize she's too full to eat you. Instead, she makes a deal to let you go if you fill her with cum to fertilize her eggs. Upon seeing human testicles for the first time, the alien realizes they simply will not carry enough cum to get the job done. Using extraterrestrial technology, she zaps your balls, making them grow 20x their original size. Now, with a load fit for a space colony, it's time to satisfy the alien's sexual desires and leave her dripping from each end.