Billie Eilish and The Neighbourhood's Jesse Rutherford are reportedly dating and even shared a kiss during their recent outing.

Photos and videos of the pair dining at a restaurant together last Thursday surfaced online Sunday, sparking romance rumors. The two reportedly had dinner at a Los Angeles restaurant called Crossroads Kitchen on Thursday night. According to the photos and videos that went viral online, the pair appeared cozy during the outing and enjoyed a vegan meal while watching musicians perform, Page Six reported.

Eyewitnesses said the two celebrities sat at one of the red booths at the diner throughout the night.

They were at the restaurant for "hours" and seemed really happy with each other, a source told ET. The source also claimed that the pair shared several intimate moments while having dinner.

"Billie and Jesse had dinner at Crossroads Kitchen in West Hollywood, California at 8:30 p.m. on Thursday night," the anonymous source told the outlet. "It definitely seemed like a date and they stayed there for three hours. They had pasta and other dishes."

"During their dinner, Billie touched the back of Jesse's head for a long time, he kissed her on the cheek, and they both kissed on the lips," the source continued. "Billie looked very good and they seemed comfortable and happy together. They didn't get up at all from their table during the meal and were focused on each other, looking into each other's eyes the whole time. At one point, they spoke about their plans and possibly going to a party at the Kardashians."

Before this outing, the pair was spotted at Halloween Horror Nights at Universal Studios. A clip of them exiting the park surfaced on TikTok last week, showing Eilish and Rutherford walking hand-in-hand at the event. The clip also shows Eilish's brother Finneas joining the duo during the event.

Eilish, 20, and Rutherford, 31, have yet not responded to the dating rumors. However, an old photo of the two together in 2017 suggests that they have been friends for years now.

Eilish was previously linked to rapper Brandon "Q" Adams and actor Matthew Tyler Vorce. Meanwhile, Rutherford previously dated model Devon Lee Carson.

US singer-songwriter Billie Eilish at the 2022 Met Gala at the Metropolitan Museum of Art on May 2, 2022, in New York
US singer-songwriter Billie Eilish at the 2022 Met Gala at the Metropolitan Museum of Art on May 2, 2022, in New York AFP / ANGELA WEISS