Kourtney Kardashian, Travis Barker Share A Passionate Kiss During Outing With Addison Rae

Kourtney Kardashian and Travis Barker were spotted hugging and sharing a passionate kiss in Burbank, California, on Sunday.

The reality star was snapped wrapping her arms around the Blink-182 drummer outside a studio in Burbank. However, Kourtney and Travis were not alone during the outing. They were accompanied by Addison Rae, who even sported a matching outfit with the "Keeping Up with The Kardashian" star.

Kourtney and Addison wore white cropped tank tops, cut-off denim shorts and a pair of black Converse shoes. Travis, for his part, donned a pair of black sneakers and pants.

"Travis adores Kourtney and makes every day special, especially her birthday. He has gone all out to shower her with love, affection, flowers, and gifts," an unnamed tipster who is close to Kourtney told E! News. "He is very into her and waited a long time to be able to show her how much he cares. He wants to spend all of his time with her and is constantly telling her how much he loves her."

A second source told the entertainment news publication that Kourtney was very much in love with Travis, adding, "They truly have a bond like no other. No one has seen her feel this way about a man in a very long time. They have the best connection and communication, something that's very important to her. They are still in the honeymoon phase and it's going really well."

The couple was spotted together days after Kourtney showed some love to Travis on Instagram last week. In a photo posted by Travis, the ex-partner of Scott Disick wore a tan-colored pullover with the name of Travis' band and its iconic anime girl illustration printed on the front.

Travis put an emoji of a red heart in the caption. Kourtney, then, reposted the photo on her own Instagram Story.

The celebrity couple confirmed their relationship on Instagram over Valentine's Day weekend. Travis even tattooed Kourtney's first name on his chest in April and the reality star inked the phrase "I Love You" on the drummer's arms last month.

Another unidentified source told Entertainment Tonight that Kourtney and Travis may be ready to take their relationship to the next level despite being less than six months into their romance.

"Kourtney and Travis are in love and have talked about their future and the possibility of getting engaged and married," the insider stated. "Kourtney hasn't felt this strongly about anyone in a while and can see a forever with Travis."

Kourtney and Travis have not commented on this claim.