Grey's Anatomy Spoilers: Lesbian Lovin' and Major McHottie

There's some bisexuality coming up at Seattle Grace Hospital - and it doesn't involve Erica or Callie! What's more, this new character has a history ... with Meredith!

Plus, two characters we know have already been sleeping together for a week by the time tomorrow's episode airs, the Chief has big plans for Dr. Bailey, and this season's most memorable guest star to date makes his triumphant return.

Follow the link to read about these and other Grey's Anatomy spoilers!