TOGETHER FOR 13 YEARS AS THE PARENTS OF FOUR BOYS, KRIS PERRY AND SANDY STIER FEEL LIKE ANY OTHER AMERICAN FAMILY... WITH ONE EXCEPTION: AS A RESULT OF CALIFORNIA'S PROPOSITION 8, THEY CANT GET MARRIED BECAUSE THEY ARE GAY.

NOW, THEY'RE IN THE NATIONAL SPOTLIGHT, TAKING THEIR OPPOSITION TO THAT LAW ALL THE WAY TO THE SUPREME COURT.

{SOT: Kris Perry, Prop 8 Lawsuit Plaintiff}

"Everyone we know and love has this right and we dont. And it's time for us to have a chance at that happiness, as well."

THE COURT WILL HEAR ARGUMENTS OVER PROP 8 ON TUESDAY... FOLLOWED A DAY LATER BY A CHALLENGE TO THE FEDERAL DEFENSE OF MARRIAGE ACT, WHICH DENIES LEGALLY MARRIED GAY COUPLES FEDERAL BENEFITS AVAILABLE TO HETEROSEXUAL MARRIED COUPLES.

CALIFORNIA IS ONE OF EIGHT STATES THAT GIVES GAY COUPLES ALL THE BENEFITS OF MARRIAGE THROUGH CIVIL UNIONS OR DOMESTIC PARTNERSHIPS BUT DON'T ALLOW THEM TO WED.

{SOT: Adam Umhoeffer, Ex. Director, American Foundation for Equal Rights}

"These families composed of gay and lesbian Americans are out there and exist. And to deny them the right to marriage hurts them and hurts their families every day."

PUBLIC SENTIMENT APPEARS TO BE SHIFTING THAT WAY, TOO.

POLLS SHOW SUPPORTERS OF MARRIAGE EQUALITY NOW OUTNUMBER OPPONENTS.

AND IN RECENT WEEKS, PRESIDENT BARACK OBAMA - AS WELL AS DOZENS OF HIGH PROFILE REPUBLICANS - HAVE CALLED FOR THE OVERTURNING OF PROPOSITION 8.

BUT SUPPORTERS OF THE BAN SAY VOTERS HAVE ALREADY SPOKEN.

{SOT: Thomas Peters, National Organization for Marriage}

"The rights of millions and millions of Americans who voted to protect marriage over the last 15 years deserve to have those votes respected by the highest Court in the land.'

THE SUPREME COURT HAS NEVER GIVEN GAY AMERICANS THE SPECIAL PROTECTIONS IT'S AFFORDED WOMEN AND MINORITIES.

IF IT DECIDES TO DO SO HERE, SAME-SEX MARRIAGE BANS COULD BE IN JEOPARDY NATIONWIDE.

MOST LEGAL EXPERTS BELIEVE A MORE LIKELY SCENARIO IS A NARROWER APPROACH...AFFECTING ONLY THE LAW IN CALIFORNIA AND PERHAPS THE SEVEN OTHER STATES THAT ALLOW SAME-SEX DOMESTIC PARTNERSHIPS BUT NOT MARRIAGE.

A RULING IS EXPECTED BY LATE JUNE.

KELLY DASCHLE, ASSOCIATED PRESS.