According to a reader on Sandrarose.com (Sandra Rose – Celebrity Photographer):

“Halle’s new lady is her “personal assistant” which is a euphemism for lesbian partner or significant other on her payroll. The two ladies were spotted inside Kinkos sitting closerthanthis. Her butch assistant sat with one foot on Halle’s chair in a typical lesbian c**k blocking/possessive posture.

Both ladies were dressed in the usual lesbian gear: grey jeans, black leather biker jackets, hoodies and boots. And they both looked hard so it was difficult to tell who was the top. Although I’m going to guess it’s Halle”

See more here:

http://hellobeautiful.com/gossip-news/sweet-sweetback/is-halle-a-lesbian/