I have a flat pair which have been a winter staple for last few years, they're only ever so slightly pantomime and their flatness prevents any trace of mutton.
BUT
I'm very tempted by these tight, heeled jobbies to be worn over skinnies. What do you reckon - sex worker, or chic?
www.johnlewis.com/dune-shock-ultra-slim-high-heel-over-the-knee-boots/p1653578?colour=Black