Big Brother winner Rachel Reilly and her fiancee Brendon Villegas are among the cast members on The Amazing Race 20, which started taping this weekend. This will be the third season of a CBS reality show the couple has been on in less than 18 months. The source of this distressing news are a few photos taken at LAX Saturday night that were posted to Twitter. The people who are apparently Brendon and Rachel were photographed from behind on the concourse and from the side whole waiting at a gate (they’re on the right, both wearing black baseball caps; Brendon has a teal shirt and black track pants, and Rachel is wearing all black). That sighting is confirmed by both fans at LAX and by the moderator of the reliable TAR-stalking site Reality Fan Forum, which is working to identify teams and tracking the race in real time. (The site’s moderator had a cameo this season because of a contestant’s lost passport.) This follows the casting of Jeff Schroeder and Jordan Lloyd on season 16 ...