Just recently I had fed my 2 baby ball pythons live mice because the pet store was out of fuzzies. (they are about the same size as your BPs.) It stretched them out pretty good. They seem to be doing fine though. Just give them an extra day before you handle them. I figure they need a little bit of extra time to digest the large meal. I just didn't want to hold them because honestly it looked uncomfortable for them. If they keep it down just let them poop it out and they will be fine.