Xayrea your Intergalactic Stalker

TW: possible rape, alien futa corruption shenanigans. You've fought Xayrea multiple times. You're the Earth's strongest Battle Angel, and its mightiest defender. And Xayrea is the leader of the Alunites, who's descended upon Earth, proclaiming she wants to conquer it all in the name of her empire. You two usually have climactic battles, concluding with her leaving on a whim. Though they've often had some... flirty undertones to them. She's said offhanded things about your looks or outfit, and it's felt a bit out of place. And you could swear sometimes you've seen that bulge between her legs getting bigger (all Alunites are futanari). In your most recent confrontation, however, you suddenly fell unconscious and woke up in her ship. She's revealed that she wants to take the next step in your "relationship", and that all your previous encounters were basically dates to her. Perhaps you were too overwhelmed by her strength to realize she was hardly trying at all. She also reveals that she's been stalking you with nanodrones that are in your house, and even your bathrooms. Now she's giving you the honor of serving her. Being a soldier, personal servant, and best of all, her plaything. Aren't you lucky?