Rihanna 'meets Matt Kemp's family'

Rihanna has reportedly met rumoured boyfriend Matt Kemp's family in Arizona.

According to E! Online, the 'Russian Roulette' star jetted to the US following her performance at Germany's Echo Awards in order to attend Kemp's charity gala Ante Up For Autism.

"Matt was happy she came. It was an awesome show of support," claimed one insider.

"Rihanna fit right in as if they all knew each other. It was comfortable."

Kemp's family and other baseball stars were reportedly among the 150 guests who attended the function on Saturday night, which raised $170,000 for the cause.

Rihanna and LA Dodgers player Kemp sparked speculation that they are dating in January after they were photographed holidaying together in Mexico. However, Kemp - who reportedly organised a celebration for the singer's 22nd birthday last month - has previously insisted that the pair are "just good friends".