The intimate pic was posted a day after the couple were spotted sharing a smooch at Monday's New York Knicks game at Madison Square Garden. "Jumbotron vibes with my boo," Chmerkovskiy captioned a video of the moment.
"Why is he so cute tho," Rose gushed over her boyfriend in an Instagram post from the game.
See more photos of Amber Rose through the years:
Amber Rose out and about through the years
Amber Rose out and about through the years
BEVERLY HILLS, CA - JANUARY 11: Model Amber Rose attends NBCUniversal's 72nd Annual Golden Globes After Party at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Imeh Akpanudosen/Getty Images)
LOS ANGELES, CA - DECEMBER 13: (EDITORS NOTE: Image was shot in black and white. Color version not available.) Model Amber Rose attends TASCHEN And David Bailey Celebrate 'It's Just A Shot Away: The Rolling Stones In Photographs' at the TASCHEN Gallery on December 13, 2014 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images for TASCHEN)
INGLEWOOD, CA - AUGUST 24: Model Amber Rose attends the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by Frazer Harrison/Getty Images)
Young Ambs 🌹
LAS VEGAS, NV - MAY 18: Model Amber Rose attends the 2014 Billboard Music Awards at the MGM Grand Garden Arena on May 18, 2014 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
Model and recording artist Amber Rose arrives on the red carpet for the 56th Grammy Awards at the Staples Center in Los Angeles, California, January 26, 2014. AFP PHOTO ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
PHILADELPHIA, PA - APRIL 04: Actress Amber Rose attends the Launch Party for Virgin America's First Flight from Los Angeles to Philadelphia at the Hotel Palomar on April 4, 2012 in Philadelphia, Pennsylvania. (Photo by Michael Buckner/Getty Images)
LOS ANGELES, CA - FEBRUARY 12: Model Amber Rose arrives at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
ATLANTA, GA - JANUARY 14: Castmember Amber Rose attends the Smirnoff Master of the Mix Finale Viewing Party at Le Fais Do-Do on January 14, 2012 in Atlanta, Georgia. (Photo by Ben Rose/Getty Images for Smirnoff)
NEW YORK, NY - NOVEMBER 03: Master of the Mix judge Amber Rose attends Amber Rose, Kid Capri, Vikter Duplaix, and Cast celebration for the Premiere of Smirnoff's Master of the Mix on November 3, 2011 in New York City. (Photo by Michael Stewart/Getty Images for Smirnoff)
NEW YORK, NY - SEPTEMBER 07: Amber Rose poses as Season 23 of 'Dancing With The Stars' meets the press at Planet Hollywood Times Square on September 7, 2016 in New York City. (Photo by Bruce Glikas/Bruce Glikas/Getty Images)
Amber Rose at Rihanna's 2016 VMA afterparty at Up and Down in New York, NY on August 28, 2016.
NEW YORK, NY - AUGUST 28: Actress Amber Rose arrives at the 2016 MTV Video Music Awards at Madison Square Garden on August 28, 2016 in New York City. (Photo by Allen Berezovsky/WireImage)
NEW YORK, NY - AUGUST 28: Winnie Harlow and Amber Rose attend the 2016 MTV Video Music Awards at Madison Square Garden on August 28, 2016 in New York City. (Photo by Larry Busacca/Getty Images)
DANCING WITH THE STARS - MAKSIM CHMERKOVSKIY AND AMBER ROSE - The stars grace the ballroom floor for the first time on live national television with their professional partners during the two-hour season premiere of 'Dancing with the Stars,' which airs MONDAY, SEPTEMBER 12 (8:00-10:01 p.m., ET) on the ABC Television Network. (Photo by Craig Sjodin/ABC via Getty Images)
NEW YORK, NY - AUGUST 15: Amber Rose attends Donald Robertson & John Demsey Celebrate the Launch of Flirt Cosmetics with Amber Rose at The Box on August 15, 2016 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
LOS ANGELES, CA - JULY 30: Amber Rose attends the Maxim Hot 100 Party at Hollywood Palladium on July 30, 2016 in Los Angeles, California. (Photo by Todd Williamson/Getty Images)
CHARLOTTE, NC - JULY 24: Amber Rose attends the Merry Jane presents the High Road Summer Tour at PNC Music Pavilion on July 24, 2016 in Charlotte, North Carolina. (Photo by Jeff Hahne/Getty Images)
NEW YORK, NY - JULY 7: Amber Rose attends the VH1 Hip Hop Honors: All Hail The Queens at avid Geffen Hall on July 11, 2016 in New York City. (Photo by Paul Bruinooge/Patrick McMullan via Getty Images)
NEW YORK, NY - JULY 11: Amber Rose attends the VH1 Hip Hop Honors: All Hail The Queens at David Geffen Hall on July 11, 2016 in New York City. (Photo by Michael Loccisano/Getty Images for VH1)
"They were really cute," an onlooker told ET of the couple's courtside date. "They look like they have a lot of fun together!"
The two played coy about their relationship at first. When speaking to ET in October, Chmerkovskiy responded to fans saying he looked cute with Rose, boasting, "I'd make a cute couple with a lot of people, you know what I'm sayin'?"