The dream of legalized cousin marriage ended for one Tennessee state lawmaker on Thursday when his last-ditch bid to block the bill banning the practice went down in defeat. Local news station WSMV reports that a bill making it illegal to marry your first cousin sailed through the Tennessee House of Representatives on Thursday, with just two members, both Republicans, voting to oppose the measure. One of those members was Rep. Gino Bulso, who tried unsuccessfully to tack an amendment onto the bill that would have kept cousin marriage legal so long as the two cousins in question received a thum…