Bisexual porn stars

I just read that Jenna Jameson decided to turn "straight." so i thought i'd check out any other bi porn stars and see how open they are with their bisexuality. Are these ladies really bisexual or are they only bi for pay. How many of you have actually watched their work? One of my friends who knows people within the industry has said that most people within it (female and male) are actually bisexual, which is pretty interesting.

Other bi porn stars include

- Briana Banks (of Briana Loves Jenna fame)

- Alexandre Frota

- Barbara Dare

- Justin Joli

In fact there are so many that there's an entire wiki page devoted to them.

http://en.wikipedia.org/wiki/Category:Bisexual_porn_stars