[stonedape]

Big Brother clearly wasn't thinking things through on this one. Even if Steph and Mario had perfectly executed the task and fooled everyone 100%, when asked DURING THE WEDDING that there is a secret pair is almost screaming at the HMs that it's one of the two people involved in the wedding.

Big Brother should have waited until the wedding was over, and should've asked something like "Who would make the best couple in the house?" In that case, Lisa's excellent job would've been recognized...no one had a clue she was tied to Mario, and that's what the task was supposed to be about.

Not to mention the whole "Rachel would know it was one or the other" argument, it was just set-up to fail.