Hilary Duff kisses Matthew Koma on sweet sushi date -- see the pic!

Are Hilary Duff and Matthew Koma back together?

The Younger star and the 30-year-old singer appear to have rekindled their romance after Duff posted a Boomerang on Tuesday of their sweet sushi date.

In the clip, Duff turns Koma's face to the side and shows the red lip marks on his cheek that she left after giving him a big kiss.

"🍣🙎🏻‍♂️💋💋💋. ." she captioned the Boomerang. 

🍣🙎🏻‍♂️💋💋💋. .

A post shared by Hilary Duff (@hilaryduff) on

RELATED: Hilary Duff Slays in a Black Bikini With Her Ex and Son: Pics!

Duff and Koma were first romantically linked in January, displaying plenty of PDA in the following months and vacationing together in Costa Rica. ET then learned in April that the two had called it quits a month before.

See more photos of Hilary Duff:

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Hilary Duff out and about
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Hilary Duff out and about
NEW YORK, NY - JUNE 19: Singer/Actress Hilary Duff is seen is seen walking in Midtown on June 19, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - JUNE 19: Singer/Actress Hilary Duff is seen is seen walking in Midtown on June 19, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - JUNE 13: Actress Hilary Duff is seen filming 'Youger' in Union Square on June 13, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - JUNE 12: Actress Hilary Duff is seen filming 'Younger' in Union Square on June 12, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - JUNE 13: Actress Hilary Duff is seen filming 'Youger' in Union Square on June 13, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - JUNE 12: Actress Hilary Duff is seen filming 'Younger' in Union Square on June 12, 2017 in New York City. (Photo by Gotham/GC Images)
NEW YORK, NY - APRIL 26: Hilary Duff and Molly Bernard are seen filming 'Younger' on April 26, 2017 in New York, New York. (Photo by Alessio Botticelli/GC Images)
NEW YORK, NY - APRIL 05: Actress Actress Hilary Duff is seen walking in Soho on April 5, 2017 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - MARCH 07: Actress Hilary Duff attends a toast to Michele Promaulayko, the new Editor-In-Chief of Cosmopolitan, on March 7, 2017 in New York City. (Photo by Astrid Stawiarz/Getty Images for Cosmopolitan)
NEW YORK, NY - MARCH 07: Hilary Duff attends the Callie Collection Wines launch event with Hilary Duff at La Sirena on March 7, 2017 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Callie Collection)
LOS ANGELES, CA - FEBRUARY 28: Hilary Duff is seen on February 28, 2017 in Los Angeles, California. (Photo by BG015/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 22: Hilary Duff brightens up her blonde with celebrity hairstylist, Riawna Capri and Joico's Blonde Life on February 22, 2017 in Los Angeles, California. (Photo by Tiffany Rose/WireImage)
LOS ANGELES, CA - FEBRUARY 01: Hilary Duff is seen on February 01, 2017 in Los Angeles, California. (Photo by BG015/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 28: Hilary Duff arrives at the Entertainment Weekly hosts celebration honoring nominees for The Screen Actors Guild Awards held at Chateau Marmont on January 28, 2017 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
WEST HOLLYWOOD, CA - JANUARY 27: Actress Hilary Duff attends Harper's Bazaar Celebrates 150 Most Fashionable Women at Sunset Tower Hotel on January 27, 2017 in West Hollywood, California. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - JANUARY 09: Hilary Duff is seen on January 09, 2017 in Los Angeles, California. (Photo by BG009/Bauer-Griffin/GC Images)
BEVERLY HILLS, CA - JANUARY 08: Actress Hilary Duff arrives at the 18th Annual Post-Golden Globes Party hosted by Warner Bros. Pictures and InStyle at The Beverly Hilton Hotel on January 8, 2017 in Beverly Hills, California. (Photo by Gregg DeGuire/FilmMagic)
LOS ANGELES, CA - DECEMBER 08: Hilary Duff is seen on December 08, 2016 in Los Angeles, California. (Photo by BG015/Bauer-Griffin/GC Images)
LOS ANGELES, CA - NOVEMBER 13: Hilary Duff and Jason Walsh are seen at LAX on November 13, 2016 in Los Angeles, California. (Photo by starzfly/Bauer-Griffin/GC Images)
LOS ANGELES, CA - OCTOBER 30: Actress Hilary Duff attends Entertainment Weekly's Popfest at The Reef on October 30, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - OCTOBER 27: Hilary Duff is seen on October 27, 2016 in Los Angeles, California. (Photo by BG005/Bauer-Griffin/GC Images)
LOS ANGELES, CA - OCTOBER 30: Actor Nico Tortorella and actress Hilary Duff attend Entertainment Weekly's Popfest at The Reef on October 30, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - SEPTEMBER 28: Singer/Actress Hilary Duff is seen walking in Soho on September 28, 2016 in New York City. (Photo by Raymond Hall/GC Images)
LOS ANGELES, CA - SEPTEMBER 29: Hilary Duff is seen at LAX on September 29, 2016 in Los Angeles, California. (Photo by starzfly/Bauer-Griffin/GC Images)
NEW YORK, NY - SEPTEMBER 27: Peter Hermann, Miriam Shor, Hilary Duff, Molly Bernard, Debi Mazar, Sutton Foster and Nico Tortorella attends the 'Younger' Season 3 & 'Impastor' Season 2 New York Premiere at Vandal on September 27, 2016 in New York City. (Photo by Walter McBride/FilmMagic)
NEW YORK, NY - SEPTEMBER 26: Hilary Duff attends the Build Series to discuss 'Younger' at AOL HQ on September 26, 2016 in New York City. (Photo by Mike Pont/WireImage)
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In July, the former Disney star was spotted cozying up with businessman Ely Sandvik. The fling appeared to have been short-lived and she's now spending more time with Koma.

Earlier this month, Koma shared a throwback pic on Instagram of him and Duff lovingly gazing at each other. 

#tBt birthday girl

A post shared by Matthew Koma (@matthewkoma) on

Meanwhile, Duff continues to spend co-parenting time with her ex-husband, Mike Comrie. The exes recently enjoyed a relaxing beach day with their 5-year-old son, Luca.

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