Summary: The Doctor's old clothes don't suit her new body.
The Doctor looked down at herself and sighed. Regeneration was always the same in some respects; the new body never looked right in the old clothes, the sleeves and trouser legs too long or too short, seams stretched to splitting point or everything hanging from a slimmer frame, and that was without taking random changes of gender into account.
She supposed she should be thankful she always came out humanoid; no tentacles or other additional limbs to complicate matters, just the basic two up and two down. Nevertheless, what she was wearing wouldn’t do at all. Time for another makeover.