She was probably just blushing!I don't know if this is admissible or not, but something similar happened to Esmeralda a few months ago during a vet visit.
She'd never been before and I can only assume it happened due to her being rather stressed out at the whole situation.
Parts of her skin, notably the tops of the legs, tail and some of her neck turned a pinkish colour, but it was concentrated to little pinkish spots around the previously mentioned areas.
It looked very much like this Elohi, but not as red. It had gone by the next morning.
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