5 Things to Know This Morning

May 12, 2014— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Rare Set of Twins Hold Hands in Delivery Room

One Ohio mom got a very special present for Mother's Day, when her identical twin girls were born holding hands.

Sarah Thistlewaite's daughters, Jenna and Jillian, are a rare set of monoamniotic or "mono mono" identical twins, which means they shared an amniotic sack and were in constant contact during the pregnancy.

The condition also meant that Thistlewaite had to remain on bed rest for weeks at Akron General Medical Center in Akron, Ohio. The twins had to be constantly monitored for nearly two months, since mono mono twins can easily become entangled in each other's umbilical cords.

"It's really mentally challenging. It's a very tough experience to go through," Thistlewaite told ABC News.

2. Shelly Sterling: I Think Donald Sterling Has 'Onset of Dementia'

Shelly Sterling said she doesn't think Donald Sterling is a racist, but she believes her estranged husband is in the "onset of dementia."

"I -- in my opinion, I think he -- it's the onset of dementia," Shelly Sterling told ABC News' Barbara Walters in an exclusive interview.

Sterling told Walters her husband said, "I don't remember saying that. I don't remember ever saying those things," after hearing the audiotape of him telling V. Stiviano not to promote her relationship with black people and not to bring them to Los Angeles Clippers games.

"I said, 'Well, this is the tape.' And he says, 'Hmm. I don't remember it,'" she added. "That's when I thought he had dementia."

3. Washington Monument to Reopen After Nearly 3 Years

More than 150 cracks have been repaired, rainwater leaks have been sealed, and the 130-year-old Washington Monument will reopen Monday for the first time in nearly three years since an earthquake caused widespread damage.

The memorial honoring George Washington has been closed for about 33 months for engineers to conduct an extensive analysis and restoration of the 555-foot stone obelisk that was once the tallest structure in the world.

4. Twitter Proposal Brings Texans Cheerleader to Prom

Mike Ramirez is a high school football player who spent most of his time on the bench last season and works part-time at a local McDonalds. Caitlyn is a Texans cheerleader whose life is devoted to intense workouts, coaching tumbling classes and studying communications at the University of Houston.

Yet 10,000 retweets later, the two are a prom couple.

For "Big Mike," as he's been known to his friends since his sophomore year at Crosby High School in suburban Houston, it all started as a joke during 3rd period, when Caitlyn followed him on a "Twitter following spree."

5. Barbara Walters Defends Herself on ‘Saturday Night Live’

With her last television appearance on “The View” this week, NBC’s “Saturday Night Live” paid tribute to ABC News’ Barbara Walters during the show’s “Weekend Update” segment this Saturday, showing off a number of clips her being impersonated on the show.

Then, the real Walters came by to defend herself and reveal the secrets to her success.

“Cecily [Strong], that tribute,” said Walters. “What an honor it was to see my groundbreaking career in journalism reduced to a cartoon character with a ridiculous voice."