Please, do not change the translation. At the time of the request it was not clear exactly what kind of legwear the artist will draw. Since the Japanese phrase do not explicitly state it either, the translation has to be ambiguous too.
I'm very curious about your reactions!If this gets 6 re-tweets in 30 minutes, you must draw a picture of Chitanda Eru sitting with her legs spread (like an "M") and black pantyhose!