Speaking of the pigs, alarms are going off and Cristina is begging Wilbur to pull through. She again advises Lexie in a calm, not condescending manner, and explains that she should massage the heart with both hands, "like a heart sandwich." After digging around some more, she sees something she missed and realizes what is wrong.
At the same time, Bailey, etc. work away on Tori. The pig surgery and the little girl surgery scenes are overlapped for "dramatic" effect. As Wilbur's heart starts beating again to the cheers of Cristina's interns, Tori's organs are all reconnected successfully and Richard genuinely announces, "Everyone, hell of a job."
Mark and Callie are back in bed, and while Callie mopes, Mark muses about the fact that he's known women who weren't able to get to the "big finish" (totally their biology and not him, of course) but he's never known one to be upset that she could. That is, until this moment. "You're a conundrum, Torres." Callie finally admits that Erica cried after sex that morning, and Mark immediately tells her that was a compliment. Callie denies it and miserably tells him that Erica had a revelation. Callie's having a hard time because while the sex is awesome with Erica, it's still awesome with Mark, and she thinks that there should be a difference. Mark tells her that there is a difference -- he knows she slept with Erica that morning, but Erica doesn't know that Callie slept with Mark. "And that makes you a cheater. Do you want to be a cheater? 'Cause I'm fine with it. The question is, are you?" The door opens -- seriously, they didn't lock the door?!? -- and as Callie hides under the covers, Derek asks Mark if he wants to come along as Derek yells at Hunt. Mark's all for it, he just needs a second. Derek leaves, and as he does calls hello to Callie, who answers with a small, miserable hello back.