ThingPone story - part 1 -

"Well, first of all...Are you going to assimilate somepony if I don't become your husbando?"
>She looks at you with an unreadable expression
>Keeps looking at you
>"How would you know?" She says
>You tense up
>She's right
>The Thing can imponysinate anyone flawlessly
>What's to say she would, if rejected, not just go out and assimilate somepony, then try again?
>Fuck
"...Do you promise to not do so if I become your husbando?"
>Her eyes widen
>She squees and jumps around in little circles
>"Yesyesyesyes! I promise!"
>She's humming deliriously to herself
>Then she abruptly stops
>She looks at you
>"Do you promise to be my husbando?" She asks, voice cautiously neutral
>You can't say you didn't see it coming, but it's still a gutpunch
>But what choice do you have?
"S-sure..I'll be your husbando."
>You sigh and look at her
>She gives you a questioning glance
>Her facial features start rearranging themselves, like she's forgetting to hold them in place
>"Is something...wrong, anon?" Again she sounds hurt
"No! I'm just...this really came out of absolutely fucking nowhere!"
>You shake your head and pet her head
>She leans into it, and her form settles back to normal
>Wait
>Fucking hell
>She's purring
>Like a cat
>...
>You try not to think too hard about it
"Well...I guess I still have questions"
>You say and scratch behind her ear
>"Fire away~" Thingpone says, and starts softly singing "Hit me with your best shot"
>At least now you know it - no, she - is from Earth
>You doubt Equestria has Pat Benatar
>No matter
>Question time
"So, okay...Uh...I thought you kind of had to assimilate someone to be able to copy them?"
>Thingpone's eyes, before closed in pleasure, now open, with a third eyelid going sideways
>"Yes, that's correct." She says, shrugging her pony shoulders
"So that means..."
>"Yes."
"Don't you feel bad about doing that?"
>She jumps up into your lap and lays down, peeking up at you
>"I'm not sure why I should be"
"Because it would seem an awful lot like being absorbed by someone else is not only death, but also a painful way to go."
>You run a hand over her cheek
"And then you disrespect both them and their loved ones by wearing their face. That seems....unseemly."
>Thing fixes you with a look, then smiles
>"That's very sweet of you, Anon. But I think you misunderstand me, and how I work."
"Then explain to me. Please. I want to think you're a good person. Pony. Eldritch horror. Whatever."
>"When I absorb someone, I take their mass into me. That includes neural tissue, and with it, the knowledge that pony had in life. Every. Last. Bit. Their personality remains in me. Unless you want to start thinking about souls and other spiritual nonsense, I would not consider this murder. Maybe a little rude, yes, but it was necessary to be able to pass for a native, and then the rest would've been unkind to me."
>She exhales wistfully
>"Happened before."
>The both of you sit there in silence for a while, Thing nuzzling your lap
"...Did she have a name?"
>Thing nods, a bit more solemn now
>"Amber. Amber Rose."
"I see. I guess that'll be your cover identity, then."
>Thing pushes her head to yours in a weird little pony hug
>"That works. She was single and not particularly notable in the community, too, so I'll have plenty of time to spend with you~"