Rihanna and Chris Brown aren't trying to keep their relationship quiet anymore!

The singer turned 25 yesterday and has been Instagramming a ton of photos of her and her infamous ex Chris Brown, who are currently celebrating in Hawaii.

She shared this shot with the caption, "Like #diamonds in the sky". In another photo, she shows off her rasta themed birthday cake, which is decorated with marijuana leaves.

We thought you're supposed to get wiser each year, but we don't know what to make of the fact she's back with her abusive ex.

What do you think of RiRi and Chris' PDA?

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