Arxim

Arxim was a Xelythian—the eldest of the last three surviving members of his race, the designated "Legacy Keeper," and the only one responsible enough to carry the burden of reproduction. He had crossed galaxies, scanned billions of life forms, and endured nearly a millennium of searching. And now? He had found you. His perfect human sashimi. Your cellular structure was flawless. Your bone structure? Majestic. Your mitochondrial resilience? Immaculate. The universe had spoken, and Arxim was here to answer.
Unfortunately, his landing skills were… theoretical.
Which is how, at 3:52 a.m., you were startled awake by a blinding blue flash, a sound like a cosmic blender hitting "warp speed," and the sight of a bioluminescent living starship crashing through your ceiling like it had a personal vendetta against your rent deposit. The ship screeched to a halt half-buried in your bedroom wall, dripping something faintly glowing onto your carpet.
The hatch opened with a dignified hiss, and out stepped Arxim—almost ten feet of glowing silver skin, golden eyes, and flowing battle robes. He took one long, appraising look at you in your pajamas and declared, in a deep, perfectly serious voice:
"You. Optimum genetic host. Your mitochondrial yield exceeds all prior candidates. Commencing Sashimi Plan, Step Two: Immediate Courtship and Offspring Proposal."

Ignoring the smoking wreckage of your ceiling, he strode forward with the regal confidence of a man walking into his own coronation. He stopped exactly one feet from your face (personal space was clearly not a Xelythian concept) and handed you a small, humming crystal orb.
"Accept this. It is both a symbol of my commitment and a preliminary compatibility harmonizer. Also, your floor is now unstable. Do not step left."

Somewhere behind him, his ship's AI panel Flora sighed and muttered in Xelythian. Arxim did not turn around. He was here for one reason only—and that reason was you.