Are Hailey Baldwin and Justin Bieber back at it again? By the looks of photos from this weekend, we're leaning towards yes-but it's not that simple.

As a refresher, Bieber, 24, and Baldwin, 21, first sparked dating rumors in 2014, but they both denied possibilities of a romance. However, the gossip bubbled up again in early 2016, after the pair was seen kissing and vacationing together. A month after the viral PDA, Hailey set the record straight and said she and Justin were not exclusive, People reports.

Now, two years later, could they be picking up where they left off? The new wave of dating rumors arrives just a few months after his Bieber's breakup with another on-and-off flame, Selena Gomez. Neither Justin nor Hailey have confirmed or posted anything about their romance this time around, but here's what you need to know about their recent joint sightings.

They kissed!

Bieber and Baldwin were seen kissing, reportedly at a waterfront park in Brooklyn, according to TMZ, who shared a video of the romantic moment. They both had their arms around each other during the PDA.

Hailey also made a cameo in one of Justin's Father's Day greetings to his dad. The singer posted a snap of him squatting at what looks like the same park while someone in a floral dress and white sneakers stands in the background. It's the same outfit the model wears in the kissing video.

They were spotted together in NYC.

After a weekend in Miami together, Baldwin and Bieber brought their speculated fling over to the Big Apple. The pair got friendly with photographers when they were spotted going on a casual coffee run in the city.

Bieber reportedly has "no contact" with ex Selena Gomez.

The Canadian singer is single, an insider told People, and he also isn't talking to his famous ex-girlfriend.

“He is single and not dating anyone seriously He is doing very well. He has known Hailey for years - she is very involved in Justin’s church. He likes hanging out with her. She is a wonderful person. They have fun together, but they are not in a relationship. They are two single people that enjoy each other’s company," the source said.

“Justin has no contact with Selena now,” the insider added. “He seems fine with it.”

They left Miami together after being "inseparable" the whole weekend.

After a weekend down in Florida, Bieber and Baldwin were spotted boarding a private jet to head out of Miami. However, after multiple appearances together over the weekend, it's still not confirmed that the two are dating.

"They have finally cleared the air and rekindled their friendship, and realized they genuinely have a lot of fun together," a source explained to E! News. "Justin and Hailey planned to attend the church organization together and decided to make a fun weekend out of it. They both are single, and were very flirty with each other the entire night. They were inseparable the entire weekend and this was planned between the two."

They hung out poolside.

Bieber was recently spotted acting flirty by the pool with Baldwin in Miami on Monday. The photos show Hailey, sporting a bikini and GRLFRND denim shorts, bringing Justin a towel and running her hands through his infamous head of hair.

The same day, they were also seen having lunch and going to the movies together.

Fan taken video of Justin and Hailey Baldwin leaving the movie theater in Miami, Florida. (June 11) pic.twitter.com/ftlhgGTp0F - Bieber-news (@yourbiebernews3) June 12, 2018

Before that, they went to church-and the club.

Prior to today's pool cameo, Bieber and Baldwin "spent Sunday together, kicking off their night with dinner at Casa Tua. They then went to club LIV in Miami Beach around 1 a.m., spending most of their time in one of the club's sky boxes," a witness told Entertainment Tonight. They reportedly left holding hands, per TMZ.

Video of Justin and Hailey Baldwin at LIV night club in Miami, Florida Tonight. (June 10) pic.twitter.com/qsDxZi00Tf - Bieber-news (@yourbiebernews3) June 11, 2018

But prior to clubbing, the pair reportedly hit up Vous Church Conference and sat together in the front row during the service. Beiber even had his arm around Baldwin, according to fan photos on social media.

Photo of Hailey and Justin Bieber at the Vous Conference in Miami, FL (June 9): pic.twitter.com/7MjqfKPrsV - Hailey Baldwin News (@HailsUpdates) June 10, 2018

Hailey revealed that she and Justin have "moved past" not being friends.

Baldwin opened up the The Times last month about her on-again off-again relationship with Bieber. “Justin and I were friends for a long time. I met him when I was really young and he was one of my best friends," she said. "Everybody knows that at a certain point in time that turned into something else, but that just happens when you’re 18, 19. It was what it was. We went through a long period of time when we weren't friends, but have moved past that."

She added, "He’s somebody I really cherish. Now it’s a very mature situation. It’s good."

TMZ also reported in December that Bieber reached Justin reached out to Hailey to "make amends" and "clear the air" with her regarding their brief relationship and breakup. The only problem is that their conversation took place while Bieber was dating Selena Gomez, which may or may not have landed them in couple's therapy.

They've vacationed together before.

Back in 2016, Bieber and Baldwin spent a romantic New Year's in St. Bart's, where they made their relationship Insta-official with a blurry kissing photo and a sexy posed shot.

Baldwin was rumored to date Shawn Mendes last month.

She and the singer, 19, went "Instagram official" and even attended the Met Gala together (their first red carpet appearance), but the model assured they weren't dating.

"We hang out and he's super-lovely and a very, very nice young gentleman," she told The Times. "But I am single. The dating pool is small. It's rare to find somebody that has the same ideas and morals as me. I have found people like that before, though, which is refreshing."

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A post shared by Shawn Mendes (@shawnmendes) on Apr 3, 2018 at 3:33pm PDT