Gossip Girl's Thomas Doherty Makes Official Event Debut with Girlfriend Yasmin Wijnaldum

Thomas Doherty and his girlfriend Yasmin Wijnaldum just made their first official appearance together as a couple!

The 26-year-old Gossip Girl star and the 22-year-old Dutch model were both in attendance at the launch of the Grazia Gazette: The Hamptons on Sunday (May 31) at The Surf Lodge in Montauk, New York.

Thomas and Yasmin have been dating for a few months. They were first spotted packing on the PDA in New York City at the end of March.

Click inside to find out who else was at the event…

Also attending the event were Outer Banks stars and real-life couple Madelyn Cline and Chase Stokes.

Madelyn is on the cover of Grazia Gazette: The Hamptons!

FYI: All of the stars are wearing Salvatore Ferragamo.