There has been speculation of a budding romance between hip hop recording artist Big Sean, 26, and singer and actress Ariana Grande, 21, and evidence has finally surfaced in recent Instagram photos, reports Us Weekly.

"Me n my Ari," the "Beware" emcee captioned the two sexy photos posted to Instagram on Saturday, Nov. 22 showing him kissing the "Breaking Free" singer.

The pictures were taken on Nov. 18 backstage at the Shrine Auditorium in Los Angeles, California. The couple performed together on stage at the "A Very Grammy Christmas Concert."

A source told Us Weekly that Big Sean and Grande had "chemistry immediately" and their relationship has gone from "0 to 60" quickly.

"He is one of the most amazing men in the whole world, and that includes my grandfather and my brother," Grande told Us Weekly, referring to Big Sean, in October. "I think the world of him, and he's an amazing person. That's kind of all there is to it."

Grande also posted the same PDA pictures to her Instagram with the caption: "Me & my baby," and another image from the same evening much more comical as it shows her in a make-out session with Sean as her manager, Scooter Braun, interrupts.

Rumors first began the two were dating when they were seen holding hands at the MTV Video Music Awards in August, reports New York Daily News.

"(We) make a lot of music together and the chemistry between me and her when we work is great," the "Control" rapper told MTV News in September.

"I was probably one of the first people to ever tweet about her music," he continued. "We've been friends for years before anything else."

After ending his engagement with Naya Rivera, Sean reportedly started dating the former Nickelodeon star in August.

Previously, Grande dated Jai Brooks of the Australian comedy group The Janoskians.