Ahem... It's not that she suddenly awakened some superpower to estimate body measurements with a glance. Although she does have that skill, Miss Vice President's body measurements didn't need her to estimate. She had already measured them personally before.
Pah, it wasn't any sort of personal measuring. It was when Ivette was suspected of being a spy, and Dorothy had given her a full body check-up, including a meticulous mental scan.
So even if Dorothy didn't want to know, certain facts were stored in her Memory Palace after that examination.
It's not that she wanted to remember it herself; it's just that she has this photographic memory.
As for Miss Vice President's body data, well let's just say...
Hmm, this Angel Witch might be more suited for Fall from Heaven. Her body as an Angel seems like an injustice to her; even Demons in Hell can't match her voluptuousness. (Reference: Ling Cage's éclairageurs.)
