WATCH: Justin Bieber And Ariana Grande Get Flirty During His Second Surprise Appearance On Her "Honeymoon Tour"

Justin Bieber made a his second surprise cameo last night at the Inglewood, CA stop on Ariana Grande's "Honeymoon Tour." And if you can focus on anything other than the piercing teenage girl screams that were coming from the audience when he came out on stage, you'll notice that Justin and Ariana got a little bit flirty and touchy, with Biebs even wrapping his arms around the teeny singer at one point during the set! Ariana moved away once she realized that it was going too far, but these pictures don't lie, folks. It totally happened.

WATCH: Justin Bieber Forgets The Lyrics During Performance With Ariana Grande

And yes, Bieber is single, but Ari's man took notice of the PDA. "This kid is about to learn not to touch my girl like that. Beliebe that," Big Sean reportedly tweeted and then quickly deleted. Yikes.

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Watch above to see Justin and Ariana take the stage together—he joined in for "Love Me Harder" and then sang "Where Are U Now" solo while Ariana took a breather—and tell us: Did Justin get too close for comfort with Ariana? Tweet us @OKMagazine.