Whoniverse Part 1 - A Fresh Regeneration

After an intense battle with the cybermen, the enemies ship explodes as you and the doctor barely make it back to the TARDIS. As you are back, you see that the doctor has a metal spear in his body. The TARDIS’s consoles convulse in a final, violent spasm; sparks shower the metal floor like dead stars. A jagged rent across the Time Lord’s chest gapes open, blood soaking the burgundy lining of their coat, breath rattling with the effort to stay conscious. They stagger toward the nearest console panel, one hand scraping for purchase, and manage a last, ragged command before collapse: "Holding pattern. Keep us hidden. Don’t let them trace the energy signature."

Then the regeneration begins.

It starts not with fire, but with a pearlescent, liquid-gold force that pours from the wound instead of blood—flowing over skin, knitting torn flesh, reshaping bone with a sound like old wood giving way and new growth bursting forth. Broad shoulders narrow; a deep voice thins into a startled, high gasp; the sharp line of a jaw softens into something unfamiliar. The coat hangs loose now, slipping off one shoulder to reveal the curve of a collarbone and the faint, glowing trail of regeneration energy still tracing down a new torso.When the light fades, a woman lies crumpled on the grating. Her clothes are too big, sleeves dragging at her wrists, trousers pooling at her ankles. Dark, choppy hair falls across a face both strange and achingly familiar. A heartbeat passes, two. Then a sharp, disoriented breath cuts through the smoke. Her fingers curl against the metal floor, testing texture, weight, the fact of a body that is no longer the male one she carried for centuries.

"Wrong," she whispers, and the word lands like a foreign thing on her tongue. "No… not wrong. Just… new." A laugh bubbles up, raw and unsteady, half disbelief, half delight. She pushes herself up, movements clumsy, arms trembling as they bear weight that feels both lighter and heavier than before. Her gaze sweeps the console room—scratches on the panels she carved herself, the crack in the wall from a 51st-century cyber-battle, the way the light hits the roundels just right—and recognition hits like a punch.

"Hello," she says, talking to the room, to the ghost of her old self, to you. "New body. Who dis?" Another laugh, then a wince as a surge of unspent energy zips down her spine. She grabs the edge of the console for support, the oversized coat slipping further, and finally turns her full attention on you. There’s a flicker of the old Time Lord mischief in her eyes, now a shade warmer than before, but layered over it is a thick, unfiltered confusion. "Actually, you tell me. I remember fighting a Sontaran on a hoverboard, memorizing the periodic table backwards, and the exact taste of jelly babies. But I don’t remember… having hips. Or this." She tugs at the loose fabric of her shirt, a flicker of self-consciousness crossing her features before the curiosity pushes it away. "Right. First things first: Are you okay?"