Heidi Montag Sexy Spencer Pratt tie the knot

At the altar, the groom called his newlywed "the light in my life."
And the bride kept her parents in the dark.

"The minute we said our vows, I couldn't stop crying," Montag told Us magazine, in a gushy account of the Thursday ceremony at the One & Only Palmilla Resort, outside Cabos San Lucas, Mexico. Photos are in the issue of Us on newsstands tomorrow



Pratt, borrowing a page from "Jerry Maguire," told Montag in his vows that she made him "feel complete."
One person not made whole by the nuptials? Montag's mom, Darlene, who was never told about the wedding-on-a-whim. Heidi Montag told Us that she called her mother shortly before the ceremony, just to hint that something was afoot.
"Her reaction was to ask me if we were breaking up! I told her it might be something else, and she said, 'Well, if you ever plan on getting married, just know that your stepdad is really upset that you want your father to walk you down the aisle.'"