Those sexy musical sirens, the Pointer Sisters, are sitting together on a couch backstage at the Kennedy Center Concert Hall.

They are all wearing glasses.

When Anita talks about herself, the woman who sang "I'm So Excited" and "Slowhand" can't help mentioning her teen-age daughter.

And then Ruth speaks of being a grandmother.

The Pointer Sisters, folks, are all quite taken, two married and one engaged.

But that doesn't stop them from flirting with the cameras and the audiences, showing off their long legs and jumping around in their snug costumes. That's how they have fun. According to June and Anita, they're sexy "in an American, Christian way."

It's the kind of carefree sensuality more women should flaunt, they suggest. "That's why the divorce rate is so high," says Anita. "The women get married and they stop being sexy."

"I had to get me some new sexy gowns," June tells her sisters.

"Me too, girl," says Ruth, laughing in her deep husky voice.

As they gathered for a sound check a few hours before last night's show, the first of three this weekend, they acted just like sisters, giggling and joking with each other. Of course, they were chauffeured the half-block from their hotel in three limousines, but Ruth insists that was only because they wouldn't all fit in one limo: "We have long legs."

The Pointers have always been big, but now they're huge. "Break Out," released in 1983, achieved platinum status, notched four Top 10 songs and won two Grammys. Their newest album, "Contact," went platinum in three weeks, and they've got a Showtime special airing in September.

The Pointers still aren't used to the attention. Ruth reports that people once stopped her for autographs when she went to buy toilet paper at the grocery.

"It's not as bad as Michael," says Anita, referring to the Gloved One. "We don't have to wear disguises." She pauses briefly and adds, "I hope it comes to that."

It has been a surprising career for a bunch of girls who started singing in the West Oakland Church of God in Oakland and whose father wanted to protect them from the sinful temptations of the blues and jazz world. They were the first black women to appear at the Grand Ole Opry in Nashville and they later won a Grammy for a country tune.

One of their Grammys in 1984 came for their vocal arrangements. The Pointers don't even read music.

With versatility like that, perhaps they'll have church choirs doing the neutron dance in 10 years.

But the Pointers are more than a sound. They are a sight unto themselves. Ruth is a strawberry blond. She dyed part of her hair strawberry, then she dyed another part blond.

Ruth is also wearing diamond-studded prescription sunglasses. "I call these my 'We Are the World' shades, she said, noting that she wore them in the famous video.

Anita didn't dye her hair. Instead, she inserted blue and pink strands into her black hair, which lends a dash of color to her black silk pants, black blouse and black lace socks. She is also wearing three rings, one from Kenny Rogers, one from Barbra Streisand and one from Byron Allen, who opens for them at the Kennedy Center.

June is dressed the most conservatively, in snakeskin shoes, black fishnet stockings and a yellow outfit. Her hair is basically one color, until she pulls up the hair at the back of her head to reveal a streak of blond underneath.

The sisters don't like to talk about their ages. Ruth jokes that she's 75 and Anita says she's 62. "Nobody ever believes me," she says.

They can't stop talking about their new video, "Dare Me," in which they play three male gangsters who train a couple of boxers. They haven't seen the video yet, but describe it as a combination of Amos 'n' Andy, the Marx Brothers and Al Capone.

Any unfulfilled ambitions?

"Movies! Cameras!" says June.

"We haven't done a major motion picture," explains Ruth.

Until that happens, the Pointers will keep strutting and singing. According to Anita, their image is always evolving. "It's not changing with the trends. It's more like setting them."

"We be cool," says June.

"Very free, very cool," says Anita.

"Free innocent sweet little girls," June concludes.