I really enjoy this cross-over thread. In my opinion, there isn't time for the soul to disengage from the host if it was bit. Plus, someone (or it would have to figure out how to do it itsself) would have to do the incision at the back of the neck to allow the soul out. There would also need to be another host ready for the soul to slip into. Unfortunately, if a vampire bit a soul, the host body would change and the soul would be trapped in the vampire forever.
The big question is: would the soul try to control the vampire host and keep it to killing animals or would it be tainted by the bloodlust and kill humans?
I am the Impulsive VampVixen.Thanks to SprtyGal and Fry for the AWESOME banner!