The Doctor's body twisted and turned as his broken form flooded with purple energy. He was beginning his latest regeneration. He'd lost count which number this one was, but he knew that something was new this time. The Doctor knew that the inner peace he'd been feeling for the past few incarnations had unlocked race and height changes, and now the tell-tale purple flashes indicated that his gender was about to change.
The Doctor moaned through his changing throat as pert young breasts inflated on his chest and his genitals were sucked inside his reshaping pelvis. Testes transformed into ovaries as the Doctor's plumbing reorganised itself into the mould of a female Gallifreyan. The Doctor's hair darkened to jet black and grew down to beneath her shoulder blades as the new woman's bones snapped into female mode.
Her eye colour changed to black as her nose grew strong and aquiline. As her teeth renewed themselves the Doctor's skin colour whitened and her eyebrows transformed into calligraphic feathers. The Doctor's back and rear cracked into shape and at last the regeneration was done.
Panting, the new incarnation examined her hands and long hair before jumping up and examining her new face in the reflective panels on the TARDIS console. Ecstatic at the novelty of this transformation the Doctor bounded into her favourite bathroom, discarding the oversized clothing of her previous body as she went.
Naked in the mirror, the Doctor enjoyed the sensual sensations as she ran her beautiful hands all over her radiant form. Young, attractive and lithe, it was clearly ready for adventure. Her milky white skin crackled with regenerative energy as the Doctor's superior brain plotted her next destination on her heroic intergalactic odyssey.
She also had to decide what to wear…