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I look in the mirror and, instead of the man who would have looked back only a few days ago, it's a succubus doing it. But as surprising as it may seem, that demoness is still undeniably me, even if a girl.
Oh, I knew demons were real long before becoming one myself. I've dated a succubus for quite some time. Unlike me, Alice was born as one. Her mother is a fellow succubus, while her father is an incubus, both forced to flee hell and hide on Earth because some radical-minded arch-demons judged them "too soft". All because they think demons shouldn't go around corrupting peoples, just punish the already corrupt ones once they die, their souls inevitably ending up in hell.
As a result, Alice is a succubus born and raised on Earth. We grew as neighbors. As kids, we were best-friends, and even after she revealed her true nature to me I wouldn't have believed we would end up as lovers. Friends with benefit, undoubtedly, but not lovers. The fact we did surprised us both. I can't help but think her parents knew long before we did, even if it didn't stop them from grounding Alice for letting me know she wasn't human. (I must admit it was quite the risky gamble from her part.)
Once I knew the truth about their daughter, and by extension themselves, Alice's parents decided to teach me what they knew of their kin History. It give some perspectives on some of the events described on the bible.
For example, everyone assume Satan is the one who sent the serpent who convinced Eve & Adam to bit the apple, but back then Lucifer hadn't tried to usurp God's throne yet, let alone fell. So who did it? The true first fallen angel, a being called Lilith, who claim to this day that Adam had tried to rape her before Eve was created. According to her, God refused to believe that his latest creation, based on himself no less, could do something so heinous, and banished her to a prototype version of hell.
So yes, she was the one who sent the serpent, in some sort of silly revenge plot. It ended with Eve & Adam banished to Earth, and Lilith cut into 4 different demonesses named Agrat Bat Mahlat, Eisheth Zenunim, Naamah and… Lilith. (The 4th piece lacked inspiration when it came to choose her new name, it seem.) The four of them were also cursed with the total inability to have any child.
If there is more succubi, it's because the 4 queens propose to any human they feel should be granted a place in heaven but isn't to join. If they accept, women become succubi and men become incubi. Funnily enough, former humans are hornless, even though all their demonic children does have horns.
What does all this have to do with me becoming a succubus? Well, a demon hunter decided to attack my girlfriend on the simple ground that she is a demon, not caring she would never hurt anyone. (Some clues suggest said hunter might have been an angel in disguise, but there is no concrete proof.) I was with Alice at the time and, on reflex, I interposed myself and ended up deadly wounded in her stead. God stayed silent to her prayers for my miraculous survival, but thankfully the 4 succubi queens heard her. All of them came personally and, combining their magics, and using the fact I wasn't dead yet, made me the 5th succubus queen, the only one that never was a part of the original Lilith.
I know I should prepare for my date with Alice, the first one since my change. Thinking of my girlfriend and what I hope we'll do after it cause my reflection to change, turning into her identical twin. I'm too new at being a sex-demon, the simple idea of sex enough to trigger my shape-changing ability. Can't help but being hypnotized by her dark-chocolate skin, her lovely face with those amber cat-like eyes, and her two magnificent horns. I try to take a step, but because her boobs are at least a couple cup-size bigger, I lose my balance and, after overcompensating in my attempt to stay upright end up on my ass.
That's enough for my skin to return to her usual color. Idem for my eyes, returning to blue (but staying cat-like). The horns disappear and her long curly hair return to a short messy pixie-cut. Finally I see the heart-shaped spade at the end of my tail turn back into a blade, before it get hidden by my growing-back wings while my chest return to sporting honorable C-cups.
Wings, something most demons don't have. You need to be at least an arch-demon, but I'm even more than that: I'm royalty. Honestly, this fact terrify me! I don't feel capable of governing over my new kind, not even with the help of 4 more sex-demons who already did the job for longer than I can imagine. I never was much of a leader…
Anyway, I still need to prepare for my date. I briefly turn into my old self, but being male again feel uncomfortable. No, that's not it. I was too suborn to realize it before, but I never felt comfortable in my own skin while I was a man. Becoming a woman would have been enough, but I'm certainly not complaining about being a succubus.
I decide instead to turn into an human version of the succubus I became, and put on a enchanted bracelet I was given to help me stay disguised.
I could wear pants and a t-shirt, I certainly have enough in my new wardrobe, but that wouldn't do for a date, so instead I take one of my few dresses. I even put on frilly bra and panty underneath, I'm sure Alice will appreciate when it's time for the "dessert".