The Cottages administer drugs to Tracy and Jeremy. Cameron mutters that it might be better if Tracy just stays in her coma. And I think I'm going to have to agree with her here. Finding out that you're married to your half-brother has got to be worse than being in a coma. Worse than that, of course, would be finding out you were married to your full brother. And you had kids with him. Ew ew ew ew! Sure enough, Tracy and Jeremy wake up at the same time. The treatment has worked. Jeremy is thrilled that his wife is getting better. Everyone else is totally grossed out. Leave it to this show to finally portray a loving couple and then make them related to each other. The writers hate love.
House is positively giddy that he'll get to tell the young lovers that they're related. Foreman is hoping they'll be able to keep it from them forever, saying that there probably won't be any complications if they have inbred children (aside from the hereditary angioedema I'm assuming they'll pass on), but House rightly says that it's Tracy and Jeremy's decision to make.
Foreman tells the couple that they didn't catch the disease from each other. It's a very rare genetic disease, and "there's no good reason two unrelated people would get it," as Foreman clumsily explains. Tracy starts to catch on, but Jeremy's still clueless. Foreman says they'll need to take a DNA test, because he thinks they have the same father. Jeremy won't believe it, but Tracy does. I think she's always had a feeling that her father wasn't her biological one, and says that it explains her green eyes and light skin. Tracy reacts pretty naturally, holding her stomach and being generally horrified. What else can you do, really? Take a lot of showers and get a therapist and an annulment, I suppose. Jeremy just keeps shaking his head. Foreman says they might genetically be siblings, but they aren't really, since they didn't grow up as siblings. It doesn't have to change the way they feel about each other. "You guys just met and fell in love," Foreman says. Yeah, except that they met about the same time siblings would, seeing as they grew up next door to each other. But I see what he's saying. Then Foreman realizes that he's being a total Cameron and has to leave the room before he grows some cute bangs.
That night, Foreman is upset both about ruining two people's lives and the fact that that no one else seems to be. When Chase asks him if he can take a few of his on-call hours this weekend, Foreman says he'll be out of town. This gets House's interest, because he realizes that Wilson isn't dating Wendy after all -- Foreman is. He likes jazz, too. House has to pay his bet to Foreman, who goes out in the hall to make out with Wendy and then ask her if she really likes jazz or just wanted to spend time with him in the Poconos. She admits she just wanted to spend time with him, and Foreman's probably happy about since the less they have in common, the less likely it is that they're related to each other.