Spotted: Rihanna and Rob Kardashian!

Spotted: Rihanna and Rob Kardashian!, Rihanna may view Chris Brown as the love of her life, but the singer considered Rob Kardashian the date of her Saturday this weekend, as photographic evidence points to the pair spending a whole lot of time together.

TMZ has posted pics of Kardashian and Rihanna go-karting and then partying last night at Playhouse in Hollywood.

There were actually rumors of a fling between this expected pair in February, but little has been heard about them as an item since.

Rob, in fact, is getting both hot and heavy with Rita Ora, as sources confirm the couple recently got each other's names tattooed on their hands.

So might Kardashian and Rihanna simply have been hanging out as friends? Of course. But what fun would that be to speculate about?!?

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