Board Thread:Questions and Answers/@comment-26076652-20150205021852

Well, you see in his flash back back when he split his soul into two to create Lillynette,both of them resembled arrancars already without Aizen using the Hogyaku. And well, when we see Ulquiorra's hollow form; while humanoid due to being a vasto lorde, you could still tell he was a hollow. Also, it was stated that while rare, a hollow can become an arrancar. So, my question is; Did Starrk become an arrancar naturally and Aizen just increased his power? Or what? 