Jon babysitting Cecelia's 6 year old daughter Daniella turns into Daniella when she gets his phone.

I see, you want a story mixing magical realism and transformation. Here you are: Once upon a time, in a lovely suburb dotted with white picket fences, lived 13-year-old Jon, a teenager who loved sports, had a fondness for chat sneakers, and had a restraining order from his first girlfriend's text messages. Living next door to Jon was Cecelia, a 42-year-old simply stunning woman whose radiant 6-year-old angel, Daniella, was an exuberant sprite of femininity. She adored wearing dresses and strappy sandals in the spirit of true girly-girl tradition, always seeking chances to sneak into her mother's closet to borrow her stylish high heels. She relished in everything sparkly - tiaras, wands, and even had a fascination for beauty embellishments like makeup and jewelry. One sunny afternoon, while Jon was babysitting Daniella, engrossed in his current texting endeavor with his girlfriend, Daniella decided to stir up a bit of mischief. She absconded with Jon's phone, her tiny feet skittering away as she tossed words of ultimatums in Spanish and accented English to Jon, promising him that he would never see his beloved device again. After sundown, when Daniella was safely asleep, Jon tiptoed into her room, determined to reclaim his phone. As his eyes traced around the room, he cringed at the sight of the girly frills, pink décor, and sparkly accessories that made up Daniella's world. As he approached Daniella's sleep-immersed form, he spotted his phone nestled next to her. But in the process of retrieving it, his feet faltered, and he slipped them into Daniella's platform sandals. A wave of terror hit him as his feet shrank and a cracked nail polish force-field enveloped them. Then, reconciling to his fate, he saw the unimaginable unravel as his whole body succumbed to the transformation. His physique, attributes, and even his demeanor iteratively altered to Daniella's petite form, her Spanish brown skin tone and the femininity associated with a young girl. His hair morphed to long brown strands framing his now changed face while his eyes, teeth, and voice pitched up to match Daniella's characteristics. Simultaneously, his clothes morphed into a girly dress, and a magic wand and tiara appeared in his possession. As Jon gazed at the bed, he found it empty. Daniella seemingly disappeared into a mist, leaving him in silent terror. Soon, his memories, instead of comforting him, morphed as well to match Daniella's innocent experiences, and he was left succumbing to this newly embraced life. As the mix of realization and acceptance washed over him, he blinked a few times, looking around with curious childlike brown eyes. A giggle escaped him as he swiveled and twirled in the softness of the dress around him. She, now Daniella, recognized the comfort of the sandals, acknowledged her tiara adjusting it and playfully pretended to shoot the mirror with her wand. Triumphantly she declared in Spanish, "AY! AY! AY! I'm Princess Daniella, and I love pink and being a princess!" Bouncing downstairs, she was reminded of her solitude. Scared by the darkness enveloping the area, she chose to retreat upstairs. As she raced back, her skirt snagged the rail. After a futile battle with the railing, she won her dress back, lamenting in Spanish, "AY! Stupid rail! I'm Princess Daniella. Let me go!". Spotting Jon's former phone shattered where she had dropped it, not recognizing it, Daniella tried piecing it back together with her wand. Unsuccessful in her attempt, she sighed in defeat. Eventually, Daniella found herself growing tired, her playful adventures seemingly sapping her energy. She crawled into bed, her 13-year-old memories of being Jon entirely forgotten, succumbing to peaceful slumber, engulfed in the innocence and happiness of her new life.