Flip your hourglass, kids: Rihanna and Chris Brown are back on.

Just recently, rumor had it that Rih and Brown broke up after the Grammys. They were seen completely apart at the same nightclub party and then again on Valentine's Day. Later it was reported that Drake, with whom Brown got in a brawl last summer, was the reason the couple broke up because he texted Rihanna and Brown did not like it.

Now we learn the couple is very much together, as the singer joined his girlfriend in celebrating her 25th birthday at what appears to be a secluded resort.

Rih, wearing a very see-through fishnet skirt, walked along the beach hand in hand with her on-again guy. Earlier in the day, she posted a photo of her and Brown to Instagram where they're seen celebrating her 20th birthday. A few hours later, she posted this current photo of them and captioned it with "birthdaybehavior":

rihanna chris brown relationship

Look how happy he is.

Then today, the "Diamonds" singer posted this photo of the her and her man with the caption "Like #diamonds in the sky":

rihanna and chris brown relationship

And just minutes later, this pic with the caption "#phuckyoballoons ha! My birthday owned hoes":

rihanna chris brown relationship

Rihanna had a busy pre-birthday weekend: She debuted her River Island collection at London Fashion Week, was attacked in a London nightclub by a deranged fan who reportedly yelled at her about Brown and was compared to the late Princess Di on the cover of The Sunday Times.

While she was across the pond, Brown was in Houston where he headlined the NBA All Star weekend, reports Daily Mail.

Related on HuffPost:

Loading Slideshow...
  • Rihanna

    Roc-A-Fella recording artist Rihanna performs at the Teen People Listening Lounge hosted by Jay - Z at the Key Club on July 14, 2005 in West Hollywood, California.

  • Rihanna

    Roc-A-Fella recording artist Rihanna is featured at the Teen People Listening Lounge hosted by Jay - Z at the Key Club on July 14, 2005 in West Hollywood, California.

  • Rihanna

    Rihanna poses for a picture at the Shawn 'Jay-Z' Carter Hosts Teen People Listening Lounge at the Canal Room on July 20, 2005 in New York City.

  • Rihanna

    Singer Rihanna poses backstage during a MTV Networks Tempo Channel launch event at The Plantation & Garden Theater October 22, 2005 Christ Church, Barbados, W.I.

  • Rihanna

    Rihanna performs on stage during the 2006 MTV Video Music Awards at Yoyogi National Athletic Stadium on May 27, 2006 in Tokyo, Japan.

  • Rihanna

    Singer Rihanna attends the 2006 MTV Video Music Awards at Radio City Music Hall August 31, 2006 in New York City.

  • Rihanna

    Singer Rihanna performs on stage during the 2006 World Music Awards at Earls Court on November 15, 2006 in London.

  • Rihanna

    Singer Rihanna arrives at the 49th Annual Grammy Awards at the Staples Center on February 11, 2007 in Los Angeles, California.

  • Rihanna

    Singer Rhianna attends the Metropolitan Museum of Art Costume Institute Benefit Gala 'Poiret: King Of Fashion' at the Metropolitan Museum of Art on May 7, 2007 in New York City.

  • Rihanna

    Singer Rihanna performs during 'The Dome 42' music show at the TUI Arena on May 25, 2007 in Hanover, Germany.

  • Rihanna

    Singer Rihanna arrives at the 2007 MTV Video Music Awards held at The Palms Hotel and Casino on September 9, 2007 in Las Vegas, Nevada.

  • Rihanna

    Singer Rihanna signs autographs at H&M for the launch of Fashion Against AIDS Collection on January 31, 2008 in New York City.

  • Rihanna

    Singer Rihanna arrives at the 50th annual Grammy awards held at the Staples Center on February 10, 2008 in Los Angeles, California.

  • Rihanna

    Singer Rihanna performs on stage at the RDS on February 27, 2008 in Dublin Ireland.

  • Rihanna

    Singer Rihanna arrives at the 2008 BET Awards held at the Shrine Auditorium on June 24, 2008 in Los Angeles, California

  • Rihanna

    Singer Rihanna performs onstage at the 2008 MTV Video Music Awards on the Paramount Studios lot on September 7, 2008 in Los Angeles, California.

  • Rihanna

    Singers Miley Cyrus and Rihanna attend the 2009 GRAMMY Salute to Industry Icons honoring Clive Davis at the Beverly Hilton Hotel on February 7, 2009 in Bevery Hills, California.

  • Rihanna

    Rihanna attends DKMS' 3rd Annual Star-Studded Gala at Cipriani 42nd Street on May 7, 2009 in New York City.

  • Rihanna

    Rihanna and Singer Justin Bieber attend the Island Def Jam Spring Collection party at Stephen Weiss Studio on May 20, 2009 in New York City.

  • Rihanna

    Singer Rihanna attends the World of Giuseppe Zanotti during Fashion's Night Out at the Giuseppe Zanotti Boutique on September 10, 2009 in New York City.

  • Rihanna

    Singer Rihanna arrives at the 2009 American Music Awards at Nokia Theatre L.A. Live on November 22, 2009 in Los Angeles, California.

  • Rihanna

    Singers Rihanna attends Cleveland Caveliers and Los Angeles Clippers NBA basketball game at Staples Center on January 16, 2010 in Los Angeles, California.

  • Rihanna

    Singer Rihanna and Katy Perry in the audience during the 52nd Annual GRAMMY Awards held at Staples Center on January 31, 2010 in Los Angeles, California.

  • Rihanna

    Singer Rihanna performs onstage at Nickelodeon's 23rd Annual Kids' Choice Awards held at UCLA's Pauley Pavilion on March 27, 2010 in Los Angeles, California.

  • Rihanna

    Singer Rihanna attends the exclusive after party for Rihanna's LA show hosted by Asics and Drai's Hollywood at Drai's Hollywood on July 21, 2010 in Hollywood, California.

  • Rihanna

    Rihanna turns on the Westfield Shopping Centre Christmas lights on November 4, 2010 in London, England.

  • Rihanna

    Singer Rihanna arrives at the 2010 American Music Awards held at Nokia Theatre L.A. Live on November 21, 2010 in Los Angeles, California.

  • Rihanna

    Singer Rihanna arrives at The 53rd Annual GRAMMY Awards held at Staples Center on February 13, 2011 in Los Angeles, California.

  • Rihanna

    Singer Rihanna performs during the 2011 NBA All-Star game halftime show at Staples Center on February 20, 2011 in Los Angeles, California.

  • Rihanna

    Singer Rihanna attends the DKMS' 5th Annual Gala: Linked Against Leukemia honoring Rihanna & Michael Clinton hosted by Katharina Harf at Cipriani Wall Street on April 28, 2011 in New York City.

  • Rihanna

    Recording artist Rihanna arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

  • Rihanna

    Singers Britney Spears and Rihanna perform during the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

  • Rihanna

    Singer Rihanna performs at the Staples Center on June 28, 2011 in Los Angeles, California.

  • Rihanna

    Singer Rihanna poses at the Los Angeles premiere of Michael Jackson 'THE IMMORTAL' World Tour at Staples Center on January 27, 2012 in Los Angeles, California.

  • Rihanna

    Recording artist Rihanna attends the Roc Nation Pre-GRAMMY Brunch at the Soho House on February 11, 2012 in West Hollywood, California.

  • Rihanna

    Singer Rihanna arrives at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California.

  • Rihanna

    Singers Rihanna and Katy Perry in the audience at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California.

  • Rihanna

    Singer Rihanna performs onstage at the 2012 Coachella Valley Music & Arts Festival held at The Empire Polo Field on April 15, 2012 in Indio, California.

  • Rihanna

    Rihanna attends the TIME 100 Gala celebrating TIME'S 100 Most Influential People In The World at Jazz at Lincoln Center on April 24, 2012 in New York City.

  • Rihanna

    Rihanna attends the 'Schiaparelli And Prada: Impossible Conversations' Costume Institute Gala at the Metropolitan Museum of Art on May 7, 2012 in New York City.

  • Rihanna

    Actress/singer Rihanna arrives at the premiere of Universal Pictures' 'Battleship' at Nokia Theatre L.A. Live on May 10, 2012 in Los Angeles, California.

  • Rihanna

    Singer Rihanna performs onstage during Fox's 'American Idol 2012' results show at Nokia Theatre L.A. Live on May 23, 2012 in Los Angeles, California.

  • Rihanna

    Rihanna performs at Barclaycard Wireless Festival at Hyde Park on July 8, 2012 in London, England.

  • Rihanna

    Rihanna attends the grand opening of the 40/40 Club at Barclays Center on September 27, 2012 in the Brooklyn borough of New York City.

  • Rihanna

    Rihanna arrives at the GQ Men of the Year Party at Chateau Marmont on November 13, 2012 in Los Angeles, California.

  • Rihanna

    Rihanna switches on the Christmas Lights at Westfield Stratford City on November 19, 2012 in London, England.

  • Rihanna

    Singer Rihanna performs live on stage as part of her 777 tour at The Forum on November 19, 2012 in London, England.

  • Rihanna

    Rihanna arrives for her 'Unapologetic' record release fan meet and greet at Best Buy Theater on November 20, 2012 in New York City.

  • Rihanna

    Artist Rihanna launches 'Nude by Rihanna' at Macy's Westfield Century City on December 1, 2012 in Century City, California.

  • Rihanna

    Rihanna attends 'Wetten dass..?' From Freiburg on December 8, 2012 in Freiburg im Breisgau, Germany.

  • Rihanna

    Chris Brown and Rihanna attend the NBA game between the New York Knicks and the Los Angeles Lakers at Staples Center on December 25, 2012 in Los Angeles, California.