Is Ariana Grande Dating “Big Mistake” Collaborator Big Sean?

She just split from boyfriend Jai Brooks. He broke off his engagement to Naya Rivera this spring. So, really, what's stopping Ariana Grande and Big Sean from making more than sweet, sweet music together?

After working together on "Problem," the duo has joined forces yet again for "Big Mistake." They both shared a clip of the collaboration yesterday, sparking rumors that there may be something more to their partnership.

Sources tell E! News the pop star and the rapper were seen making out during a recent trip to see The Purge at a movie theater in L.A. Big Sean's rep issued a "no comment" on the matter, while Grande's spokesperson has not yet responded.

Insiders, however, aren't so discreet.

"They have been friends since they made the song ['Problem'] together," a source told E!. "They have been spending more time together and recently have been getting very close. They are both doing great."

Make of that what you will. At any rate, this gives everyone the perfect excuse to roll out the best nickname in the history of celebrity romances: Big Grande. (E! News)