The first thing you become aware of is a series of notions being implanted in your mind. You are a changeling. You were created by Queen Chrysalis to help in her conquest of Equestria. Your duty is to infiltrate Ponyville and start gathering energy there, slowly working to take control of its inhabitants. Already, as you become aware of your existence, these informations spark questions in you, and you feel whatever is on the other side of the connection supply the necessary answers.

Who is Queen Chrysalis? An image appears before your mind's eye. Tall, regal, a slick black insect-like body. Broad hips and large, naked breasts, stiff neon green nipples starkly noticeable on them. Neon green in colour is what little is visible of her pussy, too, as well as the highlights of the large horse-like penis dangling between her legs. Holes pierce her limbs, gossamer wings buzz on her back, and a crown sits on her head. You feel respect, and a hint of fear, but you instinctively know it's not as much as you should. It's not as worshipful a vision of her as a changeling should have.

Knowledge flows into you, detailing the history of the Queen you now realise is the one communicating with you. Visions of cities raided, of ponies mesmerised, of minds bent into submission and bodies drained of love. Sex and domination, and a prosperous reign. More figures appear, with promises of future clarifications. Struggle. Defeat. Humiliation. The loss of an empire and of all her subjects. Hatred and revenge. Months of hiding, planning, careful gathering, and finally your creation.

Equestria. This is the name of the land, you are told. You are introduced to its inhabitants, given a rundown of its history, you learn of its customs and traditions. You are shown its rulers. The elder in particular catches your attention, her body perhaps even more beautiful than that of your own Queen. A strange taste accompanies the memory of Celestia, almost one of envy. You are shown more ponies, their faces and names registering without you even noticing. Background knowledge, the stuff a pony is supposed to know. Like the names of the towns. Ponyville, your destination. Home of most of your Queen's greatest enemies. They are shown to you in great detail.

Twilight Sparkle, Princess of Friendship. Powerful and smart, the one who fooled Chrysalis's plan at the wedding. One of your most dangerous opponents, but also one of your most useful resources. Her greatest strength is her greatest weakness. Her tendency to see the good in everyone makes her easy to manipulate if one acts carefully enough. Slim, tall, modest chest and hips. Try to get close to her, but be aware that she might get suspicious. Her assistant is a dragon, though your Queen seems to lack much information on him.

Starlight Glimmer, her student. Not as powerful, but equally smart, and far more devious. The reason behind Chrysalis's loss of her throne. She will suspect of you, so be careful around her. Her one weakness could be her own hubris, if properly exploited, or perhaps her insecurities about her past actions. Nice tits and ass. "Best friends" with Trixie Lulamoon, a flat chested show-off whose ego is matched in size only by her ass. Her personality should make her easy to manipulate.

Rainbow Dash and Fluttershy. The first, athletic and muscular, her chest as flat as her ass and her personality exploitable but likely to backfire. Her cockiness makes her a target for manipulation, but her short temper is something you must be careful with, as she would be quite a troublesome opponent in combat. The second the entire opposite of her. Tits that probably shouldn't allow her to fly, and a weak and reserved personality that makes her an easy target to work with. She has a more aggressive side though, so tread carefully not to trigger it.

Rarity. Well dressed, very noticeable makeup, big tits and ass. Welcoming, and easy to sway with words, her generosity could be quite useful to you. Likely to ask questions, but not to become too suspicious of anything. Her ambitions could be used against her. Will suck cock and take it up the ass for the sake of expanding her business, apparently, or so the Queen informs you, recalling a period in which some drones replaced some influential figures in Manehattan.

Applejack. Even more strongly built than Rainbow's relatively slender frame, though not as defined. Certainly the most dangerous one in a purely physical confrontation. Is likely not to trust you, and notice inconsistencies in your background. Try to avoid her or earn her trust, but make sure she doesn't question you directly. She's very close to her family, you could potentially get to her by getting to them first. Her brother isn't much different than her though, whereas her younger sister and her friends might be worth your time and attention.

Pinkie Pie. She exists. Either she'll blow your whole cover or she'll do literally nothing of notice. Given what happened to the last one who tried, it's advisable that you don't use your powers to try to look into her mind. A surprisingly not that fat body given the amount of sugar she consumes, and a rather explosive personality. Be careful, but if you run into her it might just be better to roll with the flow.

More knowledge flashes into you, stored in the backrooms of your mind for later use, and then you awaken. The first thing you notice is that you are floating, suspended in some sort of fluid. Your eyes open, and through the translucent green substance surrounding you you can make out a shape staring back at you from outside what you now realise is your cocoon. It's your Queen, and she looks mildly annoyed. And not as regal or as powerful as she did in your visions, though still far out of your league.

She speaks, her tone bitter and with none of the seductive appeal you know she can infuse into it. "You're probably wondering why I'm even talking to you rather than dumping info into your brain and doing things the fast way. The thing is, I'm doing things a little differently this time. You're a special one, I'm sure you know that already. Not as bound to me as I'd like you to be, but that's necessary when..." She pauses.

You tilt your head.

She snaps back at you. "Look, don't get any bullshit ideas about me needing a second opinion on things. My plans are perfect, but if I want you to operate independently I need your mind separate from mine, okay? That's why I'm doing this, no other reason." She stops again for a moment. "So, I guess you should start deciding what you want to be like. Male or female, or whatever combination of both you want to go with. We don't have much energy to work with though, so don't expect anything like this," she says, making a sweeping motion with her arm to highlight her impressive curves and long shaft. "You're getting the bare minimum, an acceptable dick and tits that at least exist, but nothing model-like yet.

"And again, because we're short on energy you only get to pick a couple of perks. Either you go for a stronger body or for a smarter brain, and either you enhance your transformation skills or your mind-control and related abilities. I'm not letting you go all in on something unless you make a really compelling argument for it, and no, you can't use the energy to give yourself a bigger dick instead. Time will come for that, I'd hope my secret weapon to have a better plan than walk into town and start raping mares.

"Speaking of that, you should probably start thinking about what you want to do next. Not everything right now, but try to get an idea of where you want to go first in Ponyville. Oh, and speaking of that you should think up a disguise to go along with your true form, can't have you go there all insect-like. Possibly one that's close to whichever real form you pick, and get a name to go along with it. And a cutie mark if you pick a pony." She stares at you for a moment, biting her plump lips. "And, you know, pick a changeling name for yourself as well, I gotta call you something after all."

Current choices to make:

• Create the character physically. This comes down to picking whether they should be male, female, or anything in between like futa with or without a pussy and with or without balls and what their face should look like and whether they should have tits or ass or a slightly toned chest or whatever.
• Pick a changeling name.
• Choose whether to boost physical abilities or intelligence.
• Choose whether to boost shape-shifting or mind-altering magic.
• (alternatively) If you can present a good argument for it, propose a different way of distributing those two points, like double boosting mind-altering magic only or boosting physicals and intelligence while leaving shape-shifting and mind-altering magic untouched.
• Pick a disguise, and a name to go with it. This can be any race, pegasus, reformed changeling, kirin, dragon, batpony, griffon, whatever, though it will conform to the character's changeling shape (unless you enhance shape-shifting, but we'll talk about that when we get there). Can't pick a female 'ling and then go with a male dragon. Also, be aware that picking a disguise as something that can't use magic will obviously mean you'll have to be careful later on not to be seen using it. And if you suggest an alicorn Chrysalis will laugh in your face. If you keep suggesting an alicorn she'll kill off the protagonist and we'll move on to Infiltration 2.0 instead. You might pick an alicorn eventually, but not now.
• Sketch out some ideas for what you want to do when you reach Ponyville. I don't know whether or not the next chapter will get there, so don't worry too much about this one.

Author's Note

Oh look, one of these. Are they still a thing? Either way, I'm writing one now because I have no shame. And no sleep either. If you like this, please leave a like to show your appreciation.

Expect chapters to be relatively short in the future, remember to give your vote for what the character should do and remember that you will decide what we'll get to see in the story. I'm not locking off any path here. Becoming a reformed changeling but still taking over the country? Turning Twilight into a Domme and having her take over Equestria and Chrysalis? Picking a female changeling body, ratting out Chrysalis and romancing Rainbow? Literally anything, you just need to make the right choices. It might take time, and I might not be consistent with uploads, but we'll get there. ~~Not that it matters since everyone will just pick the full-on maledom route as usual.~~