Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-25178327-20131206025300/@comment-6207588-20131206154316

just an assumption on my part but I would think both parties would have to agree to it...both beta and alpha. Peter did hold sway over Scott (by making him shift through command) but in the end he couldn't make Scott do what he wanted (so I don't think that really counts as being a part of the pack since he wasn't following the alpha's commands). He had to try and get Scott to willingly join the pack by threatening to bite Melissa. Perhaps that isn't the same as with other wolves since Scott's will (seeing that he eventually became a true alpha) may be stronger than the average wolf. Other betas may have folded and given in to Peter's influence where Scott was able to resist by will (just speculation of course). Then again Boyd and Erica made the decision to leave Derek's pack and he let them go...kind of the same with Isaac so I think it may just be by both parties agreeing.