Distracting Dr. Mark Sloan. Sexually.

Not the hardest task ever. But who's doing it and why?

According to TV Guide, Mark and Callie's friendship will again cause problems for Callie and Arizona, and the latter becomes so desperate. So much so that she begs Teddy to use her feminine wiles to distract her partner's BFF and former heterosexual lover.

When Mark's involved, you do what you gotta do ... poundcake or not.

As far as Mark's prospects for getting back together with Lexie down the road, TVF's panel debated this and other burning questions in our latest Grey's Anatomy Round Table.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.