Yes I have, anywhere from 2 to 3 to 8 at one time. All of those were willing which is my first preference, though I'm open to the thought of inconveniently devouring more than a couple somebodies~...
Psst you absolutely should read this story I commissioned from Rae the otter, if you love multivore endo: https://www.furaffinity.net/view/45901197/