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Are they or aren't they?

Over a week after Justin Bieber and Selena Gomez's IHOP date in Philadelphia, the Disney duo stepped out once more in Miami over the weekend.

In new pics, Gomez, 18, Bieber, 16, appear to almost be holding hands -- but not quite.

But both young stars have insisted their hangouts are purely platonic. "Oh my gosh! It was just pancakes!" Gomez told last week after it was reported they held hands and were "cuddly" at IHOP.

"They are just friends, and have been for a long time," Bieber's rep told Us. "He's single."

Gomez explained recently to MTV how their friendship began: "When he first started to come over from Canada his manager contacted me and he just said that he would like to meet me and he was just such a good kid...I feel like a big sister now, 'cause I want to protect him."

Tell Us: Do you think they'd make a cute couple?