ST. LOUIS -- Dez Bryant didn't get mad when St. Louis Rams cornerback Janoris Jenkins celebrated his pick-six by throwing up the X, taunting Bryant by borrowing his trademark gesture.

Bryant got even.

"Had to get him back," said Bryant, who torched Jenkins for a 68-yard touchdown to help the Dallas Cowboys pull off the 34-31 comeback win Sunday. "Had to get him back."

It didn't look pretty for the Cowboys when Jenkins jumped a stop route to Bryant for an easy interception and 25-yard touchdown return with 6:06 remaining in the second quarter, giving the Rams a 21-0 lead. However, Bryant and quarterback Tony Romo knew right then that they could take advantage of Jenkins' aggressiveness for a big play.

The Cowboys cashed in on the first series of the second half, when Bryant ran a post route off play-action on first down with Jenkins in man coverage. Jenkins bit so badly on Bryant's fake to the outside that he wasn't even in the television picture when Romo's deep ball arrived.

"As soon as I seen him flip his hips, I knew I had him," said Bryant, who caught six passes for 89 yards and also drew a 33-yard pass interference penalty on Jenkins during Dallas' go-ahead drive.

No Rams defenders were within 20 yards of Bryant when Romo threw the ball, as the safety reacted to a deep crossing route by Terrance Williams that is actually the primary read on the play. Bryant was so open that Romo had the luxury of severely underthrowing the ball, just to make sure the completion was made and Bryant could jog into the end zone.

"I took a peek and I knew he was open -- let me make sure he's as wide open as I think," Romo said. "No one ever comes that wide open, so you wait a tenth of a second longer just to be like, ‘Nope, He actually is that wide open.' So you just give him the ball.

"You just want to make sure you don't do anything stupid."

Throwing up the X might not have been Jenkins' smartest move. It was good for a few chuckles, but Bryant got the last laugh.