Plot hole: Close to the end of the episode, when Phoebe is going into the house pretending to be Kaia pretending to be Phoebe, Paige and Piper tell Phoebe that the demon twirls her hair, a lot. Cole also brought this to our attention much earlier in the episode. Phoebe says she's got it, and goes into the house. Paige had indicated that the problem with getting into the house was that there's a "whole load of demons" and a force field. Phoebe was to impersonate Kaia in order to get past all of these defenses. But through out the whole time she's in the house, Phoebe never twirls her hair.