Things are reportedly heating up between Kylie Jenner and her rumored new beau, PartyNextDoor. Even though Jenner, 18, and the 22-year-old rapper have been spending quite a bit of time together, neither has confirmed they are officially a couple. However, a new report claims Jenner and PartyNextDoor definitely are dating and it’s starting to get serious.

Sources told Us Weekly the “Keeping Up With the Kardashians” star and PartyNextDoor, real name Jahron Anthony Brathwaite, constantly talk on the phone and text. “He’s as into her as she’s into him,” the source said, adding that rapper Drake is the one who introduced them.

As previously reported, Jenner and PartyNextDoor first sparked rumors they were an item after they were spotted getting cozy at Drake’s Memorial Day party. A source told People magazine last month that the Lip-Kit creator and PartyNextDoor “were all over each other” at the bash and Jenner stuck by his side the entire night.

“Kylie initially thought that this would be a rebound,” Us Weekly’s source dished, with a second insider adding that Jenner has already talked to her famous sisters about PartyNextDoor. According to the outlet, Jenner still keeps in touch with her ex-boyfriend, Tyga, but there’s no longer a “relationship-y vibe between them.”

On Wednesday, E! News reported that Jenner’s plan was to have a “careful” summer following her split from Tyga but she’s really starting to like PartyNextDoor. “They don’t have a label, but the sparks are definitely getting stronger,” a source told the outlet.

In a Snapchat video nlast week posted by PartyNextDoor, Jenner jokingly chided the rapper for always removing photos of her from his social media accounts. “You not only hide me, you delete me,” she said. “No I don’t,” he responded. “I’m trying to protect you.”