Cooper Flagg and Arianna Roberson put their relationship on public display this week, ending weeks of speculation with a TikTok video and an Instagram photo that left little room for doubt. Roberson posted the clip on May 15, 2026, while Flagg followed with a photo of the two sharing a kiss.
The video showed the Duke women’s basketball star and the Dallas Mavericks player switching through different outfits during their vacation, with Roberson captioning it “Stop; carry on,” a line from Beyoncé and Nicki Minaj’s 2014 hit “Feeling Myself.” The post came after vacation photos from Turks and Caicos circulated online on May 9, 2026, adding another layer to a relationship that had already been drawing attention around Flagg’s rising profile.
That profile has climbed quickly. Flagg was selected with the No. 1 overall pick by the Mavericks in the 2025 NBA Draft, then delivered a rookie season that gave Dallas reason to believe it had found a centerpiece. He averaged 21.0 points, 6.7 rebounds, 4.5 assists, 1.2 steals and 0.9 blocks across 70 starts, even as the Mavericks failed to make the playoffs.
Roberson had already been visible in some of the moments that fueled the rumors. She was spotted during the Mavericks’ press conference on April 29 and was seen alongside Flagg’s parents when he was honored with the Rookie of the Year Award, sitting next to them during the ceremony. Those appearances, paired with the vacation images and now the TikTok post, made the relationship increasingly hard to ignore. A previous report on the couple, Cooper Flagg Girlfriend Rumors Trail Vacation Photos With Arianna Roberson, had already tracked the attention building around them.
For Flagg, the offseason has also been about basketball. After his rookie season, he said, “I’m going to work on a lot of different things,” and added that there is “always room for improvement in every area of the game.” He said he sees “a ton of growth” ahead offensively, especially “off the dribble and making reads at a high level,” and said he is eager to get back in the gym with teammates and keep learning.
The public rollout of the relationship arrives at a moment when Flagg is trying to balance celebrity attention with the demands of becoming the face of a franchise. The romance rumors had already been simmering for weeks, and Roberson’s posts only confirmed what many fans had been suspecting: the pair are no longer leaving their connection to whispers and speculation. The next story line is not whether they are together. It is how much of that very public life Flagg is willing to share while he tries to turn a strong rookie season into something bigger.
