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Cooper Flagg and Arianna Roberson Go Public With Relationship

Their social posts cap weeks of fan sleuthing from matching Turks and Caicos photos.

Duke Blue Devils center Arianna Roberson (21) shoots against the Louisiana State Tigers during a Sweet Sixteen game of the Sacramento Regional 2 of the women's 2026 NCAA Tournament at Golden 1 Center on Mar 27, 2026 in Sacramento, CA.
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Overview

  • Roberson posted a TikTok from their Turks and Caicos trip on Thursday, and Flagg followed with an Instagram Story showing the couple kissing.
  • Earlier this month, both shared near-identical shots at Noah’s Ark Beach Club, including photos on the same ocean swing that spurred online speculation.
  • Rumors first picked up in late April when Roberson sat with Flagg’s parents during his NBA Rookie of the Year press conference.
  • Flagg, the Dallas Mavericks’ 2025 No. 1 pick, averaged 21.0 points, 6.7 rebounds and 4.5 assists as a rookie, while Roberson, a 6-foot-4 Duke center and Andre Roberson’s sister, logged 8.0 points and 5.7 rebounds as a redshirt freshman.
  • The pair overlapped at Duke in 2024–25 and, after confirming the relationship, they return to their teams with Flagg preparing for his second NBA season and Roberson entering her next year at Duke.