Kendall and Kylie Jenner
Kendall and Kylie Jenner reportedly took their boyfriends Blake Griffin and Travis Scott to Halloween Horror Nights. Pictured: The “KUWTK” stars attending NBCUniversal’s 74th Annual Golden Globes After Party at The Beverly Hilton Hotel in Beverly Hills, California on Jan. 8, 2017. Photo by Loreen Sarkis/Getty Images

Kendall and Kylie Jenner have once again proven that they are inseparable. The reality TV siblings recently had a double date night with their boyfriends Blake Griffin and Travis Scott, and certain details of their early Halloween escapade have been leaked online.

The Jenner sisters reportedly took the rapper and the professional basketball player to a fright-filled evening adventure at Halloween Horror Nights in Universal City, California last Sunday, and Us Weekly is now spilling the beans on what went down during the couples’ double date.

“Kylie and Kendall were both really loving and cuddly with their boyfriends. Both couples were almost always holding hands or had their arms around each other,” one onlooker was quoted as saying by the entertainment magazine.

Seeing that Kendall and Griffin’s relationship is fairly new and has yet to be confirmed by both parties, it wasn’t surprising how they were less touchy-feely than Kylie and Scott. “Travis and Kylie were a little more cuddly than Kendall and Blake. They would kiss more and Kylie would be hanging on Travis,” the same onlooker shared.

According to the source, the youngest daughters of Kris Jenner had a lot of fun at the haunted mazes. The spooky environment made them cling to their partners’ arms the entire time. An eyewitness also shared that Scott and Griffin appeared to have gotten along well.

After the thrilling activities, Kylie and Kendall were seen grabbing some sweet treat prior to exiting the theme park. One insider stated, “Kylie and Kendall also picked up some milkshakes on their way out.”

The youngest of the Kardashian clan made headlines last month when it was revealed that she is expecting her first baby with her boyfriend. Kylie’s been subtly dropping hints to her fans about her pregnancy on social media. For last Sunday’s double date night though, the Lip Kit mogul decided to conceal her baby bump by donning a very large oversize hoodie.

Meanwhile, Kendall and Griffin are frequently seen together these days. On Oct. 8, they were spotted at The Queen Mary’s Dark Harbor with friends Hailey Baldwin, Jordyn Woods and Justine Skye. An eyewitness said at the time that Kendall and the Los Angeles Clippers player “were very close the entire night.”

“She thinks he’s dorky and funny, but also cool and sexy — he has a certain attractive ‘swagger,’” a source told People recently. “They are seeing each other more, and Blake is doing everything in his power to make Kendall his girlfriend.” The source added though that a full-blown romance is already looming, since Kendall “is for sure enjoying dating” Griffin.