It had been a month since you received a prophecy. On your 24th birthday, during the year of the dragon in which you were born, you would ascend into your new form. Every member of your family took on the traits of their zodiac animal on their 24th, so it was nothing new. However, you were the first to find out they'd get a sex change along with their transformation.
In the present, the metamorphosis starts right at midnight while your girlfriend holds up her phone to capture the video. In dire need of money, she suggested killing off the transformation video.
"Ahhh!" You writhe on the bed, blushing in embarrassment as your masculine traits melt away. You clutch the sheets as your whimpers and cries grow more feminine by the second. Creaking and popping sounds flood the warm bedroom air as your hips widen and your waist pulls inward. As your insides churn and rearrange, you feel everything in excruciating detail.
You bite your lip, feeling humiliated as your chest inflates while your hands and feet become dainty. Scales blossom on your legs and arms while horns grow atop your head. 'I-- I'm going to be a girl-- holy shit...' The reality sets in as your womb throbs and expands within you, promising the ability to bear life.
"Shhh... It's okay; I'm right here... Spread your legs for me, will you?" Your girlfriend purrs, leaning over to get footage of your crotch.
You consider fighting her, but you desperately need the money such a fetish video can bring in. You spread your soft, luscious thighs as your ass plumps up to suit your new back curve. A sudden tightening between your thighs, a harbinger of your manhood's end. You reluctantly open your legs, exposing your sex as your cock pulses and withers, your urethra sealing shut as your testes ascend into your body can with two distinct pops. As discussed previously, you shakily slide your fingers down to probe your changing genitals.
A mix of wonder and awe fills you as you feel your scrotum pull taut, a seam forming down the middle as your labia forms. The slit opens, and you grasp at your cock in desperation, only to be assailed by an orgasmic burst that ripples through your body's core. "Mmm-- ooooh!" You gasp, withdrawing as your new clit nestles within your vulva, protected by a fleshy hood. "M-- My cock..." You cry out weakly as your new urethra and vagina open, your birth canal spasming as it comes to life. Your instincts scream at you to fill that hole-- to fulfill your carnal need to mate and breed.
As your tail and wings grow, you adjust to allow room for new traits. This is life now-- your life. The changes taper off and come to an end while your girlfriend coos and reassures you. However, the video is still ongoing.
She reminds you of part two, and you bite your lip, nodding in agreement. "Y-- Yes, okay..." You wince at your new voice and slide a hand between your thighs with trepidation, spreading the folds apart as air rushes over your moist, inner labia.
The night has only just begun, and your instincts kick in. 'Maybe-- this won't be so bad...' You muse as you contemplate the night of sexual adventure that lies ahead.