The infamously on-and-off couple, Selena Gomez and Justin Bieber, is now back together, as they reportedly went on a hiking trip this weekend.

"Sources close to the couple said that they spent the entire weekend together, and it was filled with lots of 'I love you' talk on both ends," TMZ reported. "It's been less than a week since they got back together, but we're told they've already started calling each other boyfriend and girlfriend again."

While staying at his new Hollywood Hills rental, Bieber took to his Instagram account on Saturday to post a video, in which he sings and dances to new singer Meghan Trainor's "All About That Bass," produced by his friend Maejor Ali. Toward the end of the now-deleted clip, Gomez is seen laughing at her shirtless boyfriend.

The "Baby" hitmaker Instagrammed another video, which shows him rapping at a gym to a possible love song for the "Spring Breakers" actress. "Girl, let me love you plenty / I sip, sip, sip 'til the cup gets empty / Your mini skirt so tempting / As long as you keep it on the low like Lindsay," he raps. "Girl let me love you plenty @maejorali Hahahahah," he captioned the clip.

The Canadian pop star's social media posts follow the pair's movie date at Los Angeles' ArcLight theatre on Aug. 11.

"They were with their security -- two huge dudes who looked like UFC Fighters who showed up before their arrival and bought their tickets," an eyewitness revealed to Hollywood Life.

"They obviously didn't want people to sit next to them or near them. One of the security guys went to the concessions stand to get snacks while the other came back a few minutes later and swooped in the theatre before they were seen by fans," the eyewitness added before describing how the couple eventually left the theatre. "They came out hand-in-hand and swooped out downstairs as fast as I have ever seen."

Two days later, a fan named Alondra apparently ran into the couple out on another movie date at Sherman Oaks Galleria and tweeted a picture capturing the moment: