The former Twilight actress was photographed kissing Dinkin as they listened to The 1975's set at the Indio, California, music festival. Fans spotted Stewart, wearing a white T-shirt and jeans, leaning over to kiss Dirkin, wearing jeans and a yellow sweatshirt.
Stewart has been romantically linked to Dinkin -- a stylist whose clients include Chloe Bennet, Jessica Szohr and Nico Tortorella -- since December 2018, when the pair was spotted holding hands while grabbing breakfast in Los Angeles. Before Dinkin, Stewart dated Victoria's Secret model Stella Maxwell for two years.
Dinkin has shared several photos from Coachella since she arrived at the festival on Friday, but none of Stewart.
Also spotted enjoying The 1975's set at Coachella was Chilling Adventures of Sabrina star Kiernan Shipka, as well as Kendall Jenner and Hailey Bieber -- whose husband, Justin Bieber, has yet to be seen at the festival.