Have Leonard and Penny taken their on screen romance into real life... Again?

Once again, rumors of Kaley Cuoco and Johnny Galecki dating have been circulating. Cuoco is recently single after splitting with her husband Ryan Sweeting.

Johnny quickly shut down the rumors by posting a photo of he and Kaley on Instagram with the caption, "No scandals / home wreckers / pregnancies here, y'all. Just profound friendship."

The two did date for two years before calling it quits in 2010.

The relationship ended because, "Everyone was always asking, and we deny-deny-denied. … It took a little bit of a toll on me and I think it did for him, too," Kaley said.

Although they're denying it, it seems like there is a chance something could spark between them again. You never know. Sometimes love never dies.

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