The kingdom has fallen, and as you are a member of the losing side's royalty, you are to be handed over as a means of negotiating for peace between the factions. It's a common story. The losing family marries off their daughter in order to stop the violence. You just did not expect it to happen with you is all.
Being the crown prince and an only child at that, should have meant that this was an impossibility. However, last night your family recieved a secret message saying that there is still a method of achieving this. And that is by turning you into the crown princess of course.
You tried to argue against this, but both your Father and Mother agree that this is your responsibility as a noble, and accepted the witch's proposal. And so, you now find yourself, bound and gaged, and being lead by a rope down into the dungeons in order to prevent your escape while the final bit of preparations are being completed.
Soon after, you are fetched and brought before a massive magic circle which has been drawn across an entire room's floor. You are lead to the center, and your binds are staked to the floor and walls, keeping you tied up in the exact center. And struggle as you may, your bindings continue to hold tight.
The circle lights up and your bindings are disintegrated, however it is already too late, as the barrier is already around you, trapping you inside. You finally accept your fate, not having any other options at this point, and let the magic do its work on you.
Your body becomes much more petite as your muscles melt away, and your frame shrinks as well. You feel yourself slowly losing height too, dropping from your tall 6 foot 3 by a full foot, down to barely 5 foot 3 inches. Your close are so baggy on you that you can barely keep your now ill fitting pants from falling down.
Your hair lightens, turning a bright golden blonde like your Mother's, and grows out long and wavy down your back and even down past your ass. Speaking of asses, yours begins to swell as your hips widen. However, at the same time, your waist shrinks inwards, leaving you with a natural hourglass figure that most women could only ever dream of attain even while using a corset.
To compliment your lower body, your chest also puts forth its best efforts and grows out a pair of perfectly large breasts. They have just the right amount of firmness to not really sag, but are still soft enough to jiggle and bounce around with every one of your movements. They are heavier than you were expecting, but thankfully still manageable. You devote your right arm to containing them for now, as your left still is holding up your pants.
The rest of your body is rapidly feminized, hands become soft and dainty, longer, feminine legs, a cuter face with just a bit of sexyness thrown in as your voice becomes naturally breathy and seductive sounding. Your nails become well kept and grow out a bit past your finger tips too. And to finish it off, you feel numerous magical tattoos span across your body, etching themselves into you before fading completely from sight as all skin damages are repaired, leaving you with flawless, soft, healthy looking skin.
One last crest appears on your lower back, but unlike before, you feel that this one is not part of the ritual, as the magic flowing into you feels different than the rest. Eventually it stops though and disappears like the rest of them. You can feel your body now instinctively behave differently, as your mannerisms have been thoroughly altered to fit your new form too.
The barrier falls, and your 2 maid's rush over to your side and help you change outfits into a more suitable one. They shove you into a slender fitting dress which makes, then shows off quite a lot of your cleavage. It also hugs snugly against your waist and hips. It is literally a perfect fit for your new body. You are helped into a pair of heels too, and are escorted out of the dungeon after the maid's do you hair up into a much more elegant, yet seductive fashion.
You haven't yet seen your reflection, but you already can tell by everyone's faces that you are not just another woman. Either you look absolutely hideous or are a walking goddess. And by the reddening of the male guards faces, you suspect its the latter. You walk rather gracefully over to your parents, as if these kind of fancy high heels have been a part of your wardrobe for years.
Your Mother hugs you carefully, so as not to mess up your dress and hair. Your Father on the other hand, begins speaking. "My son, I am both a Father and a King. And my duty to my kingdom outweighs my personal opinions and ideals. You who are also bound by this, have made a great sacrifice for your people. So you can at least go proudly as our kingdom's beautiful princess. And as such, from this day forth, Prince Aaron is no more, and his sister, Princess Arinay shall take his place as Crown Princess."
You feel yourself become more accustomed to the name Arinay and less and less with Aaron as your father speech continues. When the speech finishes, your mind has accepted your new identity fully thanks to the magic. You still remember your old self, but no longer consider him to be you. You ARE Princess Arinay now. You have to accept this fact. As well as the knowledge that you are to be wed to someone in a few days who you never have even seen before. You can only let out a sigh of defeat.
On your way out of the dungeon however, someone whispers directly to you with magic. You do not recognize their voice, but are appalled by what they say to you.
"Greetings my Noble Lady. Though we haven't met before, I feel an odd closeness to you and l am looking forwards to our proper meeting. Your beauty is such a significant loss for your Kingdom, but, its now quite a boon for my Lord's at the same time. By the way, what do you think about my abilities? Being able to slip a spell past a royal barrier is by no means an easy feat. But don't worry, what I have done to you is only but a little prank. Something harmless. Well, mostly harmless anyways. I will be there to collect you in the morning at sun rise."
You do your best to not react outwardly to this, as no one else was able to hear it. Your mind is now racing to figure out who this person is, and what they did to you. Your only clue is that they must have some close connection to the noble family whom you will soon be married into.
You are taken to your room, and a pair of guards are placed at your door to ensure you do not try to escape. You don't plan to anymore, and simply let the maids undress you and slip into bed after dismissing your maids. About 3 hours later, in the middle of the night, you are awoken by a burning feeling in your lower back as the weird magic crest reappears.