Kylie Jenner and Justin Bieber were spotted together in Las Vegas over the weekend cheering on boxer Floyd Mayweather as he defeated Marcos Maidana. The two posed for selfies together and seemed like they were having a good time.

A source told E! News that Jenner and Bieber were also spotted hanging out in the same hotel room at the Hard Rock Hotel. Their outing comes after rumors claimed that Selena Gomez dropped Kylie as a friend because she was "flirting" with the "Confident" singer at Coachella Music Festival.

Gomez also ended her friendship with Kylie's sister Kendall Jenner. According to Hollywood Life, Gomez reportedly "went off" after she found out that Kylie had sent Bieber sexy selfies.

"Kylie sent sexy pics of herself to Justin and that's what started the fight," a source told the site. "Selena saw the pictures on Justin's phone and she freaked out and left immediately."

The source also claims that that the reality star and Bieber "hooked up" at the music festival.

"I've heard it happened," the source added.

Following the alleged incident at Coachella, rumors claim that Gomez dumped Bieber. She also deleted every picture she took with Kendall and Kylie from her account and then unfollowed everyone. A source told TMZ that the 21-year-old singer wanted to remove all the "toxic" people from her life and felt the Jenner girls were a bad influence.

"We're told Selena is determined to stay on the straight and narrow - focusing on music and, get this... going to church almost daily," TMZ wrote.  

Earlier in the year she secretly went to rehab to focus on personal issues. According to reports she voluntarily checked into Dawn at the Meadows in Arizona on Jan. 5 for a two-week stint. Her rep would not elaborate on Gomez's rehab stay but said that it had nothing to do with "substance abuse."