Um... no. No bestiality, I swear. Not unless you count growly, fangy Spike as "beast."

Shapeshifting... uh... I don't have any characters that are *human* shapeshifters. There might be a demon or something similar that changes forms or uses glamour, though I don't think that's the same thing. If I were going to have a shapeshifter, it'd be Oz... but he's not in this one. (My next WIP though will have Oz in it.) Most of the demons I used in this story are adapted from existing folklore, and I didn't really have much use for shapeshifters, except in one instance... and even then it never becomes human.