INDIANAPOLIS (AP) _ Andrew Luck threw two touchdown passes, and Robert Mathis broke the Colts' single-season and career sacks records by forcing a second-half safety to lead Indianapolis past reeling Houston 25-3 yesterday. Luck finished 19 of 32 for 180 yards with one interception and needed only two quarters to put up 20 points. But the Colts (9-5) did it against a team that has lost 12 straight overall and is 0-12 all-time in Indy. The AFC South champs took a 20-3 halftime lead, aided by two interceptions.