Cara Delevingne rang in her 26th birthday with rumored girlfriend Ashley Benson. The model and actress posted photos from the occasion Saturday on Instagram after officially turning 26 on Aug. 12. Delevingne shared a pair of photo booth shots with Benson, Zoe Kravitz, Sienna Miller, Suki Waterhouse and other pals. She captioned the post with several heart emojis. The Suicide Squad actress also shared a slideshow of pictures with Kravitz, Miller, Margot Robbie and a woman dressed as a mermaid. "It was my birthday a week ago and I am still giggling with MERmazing memories," she wrote. Delevingne and Benson were spotted kissing in London this month following dating rumors. Us Weekly said the pair met on the set of the upcoming movie "Her Smell." "They've been hanging out since filming started," a source said. Delevingne previously dated Annie Clark, aka St. Vincent, and was linked to Paris Jackson in the spring. Benson is best known for playing Hanna Marin on the Freeform series "Pretty Little Liars," which ended in 2017 after seven seasons.