Kendall Jenner and Justin Bieber showed off some major PDA at this year's Coachella Valley Music and Arts Festival amid hookup rumors.

The Canadian pop star took to his Instagram account on Thursday to share a couple of intimate Polaroid snapshots taken with the "Keeping Up with the Kardashians" star while lounging on the grass with his puppy, Esther.

The images see a shirtless Bieber affectionately putting his arms around a bikini-clad Jenner's waist, hinting that they might be more than just friends.

A photo posted by Justin Bieber (@justinbieber) on Apr 9, 2015 at 6:55pm PDT

 good start to coachella

A photo posted by Hailey Baldwin (@haileybaldwin) on Apr 9, 2015 at 6:57pm PDT

Last month, HollywoodLife.com reported that the couple is enjoying their alleged "friends with benefits" relationship.

"They love telling people they're just friends, but they're playing with everyone -- there is more to it," a source revealed. "They've hooked up in the past, and there's still something there."

Meanwhile, several offensive tweets were posted under the 19-year-old model's name on Tuesday, including one that talked about having oral sex with the "Boyfriend" singer.

"Just got done slobbing on @justinbieber's nob #SloppyToppy #KKK," the post said. 

Jenner was reportedly hacked, but the social media posts followed recent reports claiming she has secretly been hooking up with Bieber for weeks.

"They had a secret date at a Clippers game on March 20," a source told In Touch. "He was touching her leg and kissing her cheek."

The source also claims their relationship may be more serious than has been reported in the past. Supposedly, Jenner is very happy with Bieber, and the source goes as far as saying that he may want to seriously have a relationship with her. 

The source added that the two, who have gotten closer since their racy photo shoot for Vogue's April 2015 issue, always had feelings for each other but never took it to the next level due to Jenner's friendship with Bieber's on-again, off-again girlfriend Selena Gomez.