Is Alli Sims Going Butch?

In case you don't recognize Alli Sims name, she's the friend/assistant/whatever to Britney Spears. We're always seeing her around the troubled singer and recently it seems that there has been a change in Alli's appearance.

I noticed this before and let it go, then I saw these pictures and it made me wonder if there's a butch side of Alli that she's never quite released until now. Always defending and very protective of Britney - enabling Brit's behavior, sometimes even speaking for her (Ryan Seacrest's interview) makes me just think that there's something a little off here. Do you see it?