It is possible, but I would have to ask, is it really necessary to do so??
First of all, while some snakes may do well with it, others may not, and then their stress level would be higher than it should be. Stress can lead to snakes not eating, etc.. Stress is something to always avoid if possible at all times with our snakes.
Second, if you do house some together, and one gets sick somehow, the other most likely will as well. Then, on top of that, if both get sick, it may be harder to pinpoint exactly WHO got sick and WHEN.
Third, as far as the issue of feeding, even though pits are not cannabalistic, accidents can happen. Jason from Envy housed some baby San Diego gophers ( I think that is what it was, correct me if I am wrong Jason )temporarily in a bigger cage while getting other cages ready, and one gopher ate another. Again, Jason may have to chime in on what exactly happened, as I am not sure if it was right after feeding time, but still, that can and does happen.
My old breeding partner in the nineties housed a hognose pair together for years, and one day, out of the blue, the female just devoured the male. This was after having the snakes housed together for a long, long time.
So, my overall thoughts are, while some may have done so with success, the reasons I listed would make me error on the side of caution, and I would keep everything separate.
Take care!
Billy
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Genesis 1:1