Sharon Stone proves she's ageless in string bikini and skimpy shorts -- see the pics!

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Sharon Stone is fierce and fabulous!

The 58-year-old ageless actress proved she's still got it, recently flaunting her toned figure at Zuma Beach in Malibu, California, while filming a beach volleyball scene for her new movie, A Little Something for Your Birthday.

WATCH: Sharon Stone Is Sexy and Makeup-Free in a String Bikini

The blond beauty kept her tresses pulled back in a loose, braided ponytail, shading her eyes from the sun with a pair of Ray-Ban aviator sunglasses.

But it was her sassy beach ensemble, which consisted of a multi-colored string bikini top paired with lace-up red shorts, that undoubtedly turned heads.

Get it, girl!

Ryan Lochte, who's currently competing on season 23 of Dancing With the Stars, will also be joining Stone in A Little Something for Your Birthday, along with previously confirmed cast members Famke Janssen, Caitlin Fitzgerald, Liza Lapira, Tony Goldwyn and Ellen Burstyn, his rep confirmed to ET on Tuesday.

According to one of the film's producers, the newly-engaged Olympic swimmer will play a patron at a club that Stone's character hits on. Lochte and Stone will film the scene at a nightclub in Hollywood.

WATCH: Ryan Lochte Strips Down, Gets Excited During Sexy Salsa With Cheryl Burke on 'DWTS'

One night before the exciting casting news was announced, Lochte appeared shirtless while slaying his salsa dance routine with partner Cheryl Burke during DWTS' Latin Night.

Sharon Stone through the years
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Sharon Stone through the years
Actress Drew Barrymore, center, with Sharon Stone, at left, and Allen Garfield at Hollywood screening of "Irreconcilable Differences" on September 24, 1984. (AP Photo/Scott Harms)
Sharon Stone holds an ice pick up to Dana Carvey's, as Garth, face, as Mike Myers, as Wayne, stands by during taping of a promotional spot for NBC's Saturday Night Live in New York at Thursday's rehearsal April 9, 1992. Stone, who stars opposite Michael Douglas in "Basic Instinct" will host "SNL" joined by the team of Wayne & Garth of "Wayne's World". (AP Photo/Richard Drew
Actress Sharon Stone is accompanied by Jack (no last name available) at the Golden Globe Awards in Los Angeles on January 23, 1993. (AP Photo/Reed Saxon)
Actress Sharon Stone hugs a few of the 125 homeless kids of Los Angels at Camp Unity Saturday, Aug. 28, 1993, in Malibu, Calif. Stone spent four days working with the kids at the free camp which is designed to give the children a brief respite from their difficult lives. (AP Photo/Mark J. Terrill)
American actress Sharon Stone poses for photographers during a press conference in the Grand Hotel in Rome Wednesday Feb. 21, 1996. The actress is in Italy to present Martin Scorsese's last movie ''Casino''. (AP Photo/Giulio Broglio)
American actress Sharon Stone poses next to a poster depicting the cover of the first Russian edition of Harper's Bazaar magazine after a press conference in Moscow Friday, March 1, 1996. Sharon Stone arrived in Moscow to help launch the first Russian issue of Harper's Bazaar. (AP Photo/Sergei Karpukhin)
Actress Sharon Stone, left, shares a laugh with comedian Ellen DeGeneres during the Human Rights Campaign Foundation awards dinner Saturday evening, Feb. 19, 2000, in Universal City, Calif. Stone was honored with the foundation's humanitarian award for her support in AIDS and breast cancer research. (AP Photos/Rene Macura)
Sharon Stone walks on stage to present the Stephen F. Kolzak award to Anne Heche at the 11th Annual GLADD, Gay and Lesbian Alliance Against Defamation, Media Awards held in the Century City section of Los Angeles on April 15, 2000 Heche was not at the ceremony and Sone also accepted the award for her. (AP Photo/Jill Connelly)
American actor Clint Eastwood receives the Golden Lion for his career from American actress Sharon Stone during a ceremony at the 57th Venice Film Festival in Venice, Italy, Wednesday, August 30, 2000. (AP Photo/Luca Bruno)
American actress and jury member Sharon Stone smiles as she arrives for the screening of the amimated film "Spirit: Stallion of Cimarron," directed by Americans Kelly Asbury and Lorna Cook, presented out of competition at the 55th International Film Festival in Cannes, southeastern France, Saturday, May 18, 2002. (AP Photo/Michel Euler)
American actress and member of the jury Sharon Stone poses as she arrives at the Festival Palace to attend the screening of "Gangs of New York," directed by American Martin Scorsese at the 55th International Film Festival in Cannes, southeastern France, Monday, May 20, 2002. (AP Photo/Patrick Gardin)
Sharon Stone talks to reporters before the premiere of her latest film "Cold Creek Manor," Wednesday, Sept. 17, 2003, in the Hollywood section of Los Angeles. (AP Photo/Rene Macura)
American actress Sharon Stone performs with Lisa Minnelli during the AMfAR Cinema AIDS event at the Moulin de Mougins restaurant near Cannes, southern France, Thursday May 20, 2004. The black-tie event will benefit the American Foundation for AIDS Research (AMfAR). (AP Photo/Patrick Gardin)
Sharon Stone arrives in Leicester Square in London for the European premiere of her latest film, "Catwoman," Tuesday Aug. 3, 2004.(AP Photo/Max Nash)
American actress Sharon Stone arrives for the world premiere of George Lucas' new film "Star Wars: Episode III Revenge of the Sith", shown out of competition at the 58th international Cannes film festival, southern France, Sunday, May 15, 2005. (AP Photo/Eric Gaillard, Pool)
U.S. actress Sharon Stone smiles during a press conference as she becomes the new face of a the Christian Dior skincare line, Tuesday Oct. 4, 2005, in Paris. (AP Photo/Michel Spingler)
** ALTERNATE CROP ** American actress Sharon Stone, laughs as she holds a banner with the Israeli and Palestinian flags during an event with Israeli and Palestinian children organized by the Peres Center For Peace in Jaffa, near Tel Aviv, Israel, Wednesday, March 8, 2006. Stone is on a visit to Israel sponsored by the Peres Center for Peace. (AP Photo/Ariel Schalit)
U.S. actress Sharon Stone arrives at the world premiere of her latest film 'Basic Instinct 2' at the Vue Cinema in Leicester Square, London, Wednesday March 15, 2006. (AP Photo/Matt Dunham)
Sharon Stone arrives for the Weinstein Company party following the 64th Annual Golden Globe Awards on Monday, Jan. 15, 2007, in Beverly Hills, Calif. (AP Photo/Danny Moloshok)
U.S. actress Sharon Stone attends a news conference for the film "When A Man Falls In The Forest" at the 57th International Film Festival "Berlinale" in Berlin, Germany, Monday, Feb. 12, 2007. (AP Photo/Hermann J. Knippertz)
U.S. actress Sharon Stone arrives at the opening ceremony of the 4th International Dubai Film festival in Dubai, United Arab Emirates, Sunday, Dec. 9, 2007. (AP Photo/Nousha Salimi)
Actress Sharon Stone arrives at the Los Angeles Gay and Lesbian Center's "An Evening with Women: Celebrating Art, Music and Equality," in Beverly Hills, Calif., Friday, April 24, 2009. (AP Photo/Chris Pizzello)
Sharon Stone arrives at the Entertainment Weekly and Women in Film Pre-Emmy Party in West Hollywood, Calif. on Friday, Aug. 27, 2010. (AP Photo/Matt Sayles)
Actor Colin Firth, center, and his wife Livia Giuggioli, left, are seen with actress Sharon Stone during the 83rd Academy Awards on Sunday, Feb. 27, 2011, in the Hollywood section of Los Angeles. (AP Photo/Mark J. Terrill)
Actress Sharon Stone onstage during the 2011 Macy’s Passport Presents Glamorama at the Orpheum Theatre in Los Angeles, Calif. on Friday, Sept. 23, 2011. (AP Photo/Kristian Dowling)
Sharon Stone speaks at the "Together to End AIDS" amfAR benefit on Saturday, July 21, 2012 in Washington. (Photo by Charles Sykes/Invision/AP)
FILE - This July 30, 2013 file photo shows actress Sharon Stone attends a special screening of Radius TWC's "Lovelace" in New York. Stone plays Dorothy Boreman, mother of Linda Lovelace in the film. (Photo by Evan Agostini/Invision/AP, File)
US actress Sharon Stone shows a victory sign as she visits the Polish parliament in Warsaw, Poland, Tuesday, Oct. 22, 2013. Stone came to Warsaw to attend the Nobel Peace Prize laureates meeting and to receive the Peace Summit Award in recognition of her activities against HIV and AIDS. Nobel Peace Prize laureates are discussing challenges facing the world: armed conflicts, economic inequality and migration. The 13th annual summit that opened Monday is held for the first time in Eastern Europe to mark 30 years since former Polish President Lech Walesa was awarded the prize for leading Solidarity movement that toppled communism in Poland. (AP Photo/Alik Keplicz)
Sharon Stone arrives for the Di Grisogono Party at the Hotel du Cap Eden Roc at the 67th international film festival, Cannes, southern France, Tuesday, May 20, 2014. (Photo by Arthur Mola/Invision/AP)
Sharon Stone speaks on stage at the 26th Annual Producers Guild Awards at the Hyatt Regency Century Plaza on Saturday, January 24, 2015, in Los Angeles. (Photo by John Shearer/Invision for Producers Guild of America/AP Images)

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