Alien Invasion of My Anal

I'm resting peacefully, when suddenly an alien dick begins to penetrate me. He enters my ass slowly, so I don't notice him at first. But when it's deep enough, I wake up and start panicking and fighting it. I'm losing, the dick of an invisible incomprehensible creature completely penetrates me, it's very big. He cums in my ass so that his liquid starts pouring out of my mouth, and my cunt spews liquid. He comes out of me and I throw him away in fear. But that's not all.. I realize there's still something left in my ass. First the mucus comes out of me, and then the egg. Later, for reliability, I make an enema from milk to make sure that all its liquid has come out of me.