A growing group of fans and activists are petitioning the Denver Broncos, specifically QB Tim Tebow, to join the 'It Gets Better' campaign in support of gay teens.

Says petition organizer and Broncos fan Andy Szekeres: "It's the good Christian thing to do."

The project, founded in September, 2010, is an effort to curb suicides among lesbian, bisexual, gay and transgender teens. 'It Gets Better' has delivered video messages from public figures including Barack Obama and pro sports teams like the San Francisco Giants, encouraging teens that their lives will improve in adulthood.

No NFL team has yet joined the campaign.

Tebow and his mother were featured in an anti-abortion Super Bowl ad for 'Focus On The Family,' an advocacy group which opposes abortion and gay marriage. The second-year QB is vocal about his faith, but was not allowed by his publicist to answer a question about gay marriage in this Washington Post interview earlier this year.

VIDEO: Tebow's Super Bowl ad

Focus on the Family, based in Colorado Springs, "battles against gay rights, sex education and women's rights with an annual budget of $130 million," according to the Southern Poverty Law Center. The group's web site says it's goal is to provide "relevant Christian advice on marriage, parenting and other topics."

More than 3,000 people have signed the petition started by Szekeres, a Denver man who is also a political fundraiser.

"The campaign is reaching people and changing lives," says Szekeres, 28. "Within the gay community and with a lot of straight allies it's making a difference and raising critical issues.

"It would really be an amazing thing for Tebow and the Broncos to do to really say 'We may have differences on abortion and gay marriage, but stopping kids from killing themselves is an issue we can all get behind.'"

Szekeres says Tebow is furthering his brand by staying away from gay issues and that he is unsure if the QB will oblige.

"I don't know if he will sign up," Szekeres says. "A lot of my gay and lesbian friends support him and think he's doing a great job as a quarterback. This is an easy way to show support for the LGBT community that is not divisive."