"They are spending a lot of time together. They're serious," said Us Weekly's source. "She's really into him and has known him for a long time. Her family really likes him."
They went on to say that Kylie's older sis Kendall Jenner approves of their relationship, adding, "Kendall has also been friends with him for years."
Anyone who follows Kylie and Travis on social media has no reason to doubt that the two are, in fact, pretty serious at this point. The couple debuted matching butterfly tattoos this week, which many speculated was a nod to Scott's song, "Butterfly Effect," which many assume Scott wrote about Kylie. It's unconfirmed, of course, but it's worth noting that the rapper did post a picture of Kylie disembarking from a private jet and captioned it with the name of his song. You can check that out below.
[Photo: Getty Images]