Clay underlines Jake's name three times because he didn't like what Jake just said. Jake shouldn't be surprised if he's voted out tonight because, Clay says, "[his] mouth has definitely overloaded [his] butt."
Penny also votes for Jake because she's trying to stay in the game, and this is the only way she can do so.
Ted votes for Penny because although she's "very, very good" and her charm has worked on the others, he's not falling for it. Still, he wants her to "take care."
That's all we see of the voting, and Peachy's off to tally. Jake receives the first vote, and Ken and Erin look at each other and grin. I'm not sure if this is "He's getting what he deserves" grinning, or "We knew this would happen" grinning. The next vote is for Penny, followed by a random vote for Jan. There's another vote each for Jake and Penny, tying them at two apiece. The final two votes both bear Penny's name. As her torch gets snuffed and she exits the game, she has hugs and kind words for no one. Peachy then points out that the S6 have clearly endured a lot, and he reassures them with the promise that the last nine days will be even harder.
Next week, gather the family! And seriously, the Survivoradvertisers actually think you will actually gather your family for this? That aside, witness Robb throw Clay in the water! Witness Jake kick something! Never-before-seen footage! Witness close-ups of Erin's ass! Witness Grindia do the Macarena!
As the credits roll, we see that Jake cast the solitary "Jan" vote, thus costing himself her jury vote in the unlikely scenario that he wins immunity from here on into the final two. Penny tells us that although she wasn't ready to leave the game, "in a weird sort of way" she feels flattered to have been viewed as a threat, which sounds so much better than saying, "I guess I'm not nearly as adorable as I thought I was."