Rihanna reportedly jetted in from Germany to meet her new boyfriend Matt Kemp' family for the first time.

The 23-year-old singer was said to have left the LA Dodgers baseball star beaming in delight after showing up to support his Ante Up for Autism charity fundraiser.

"Matt was happy she came. It was an awesome show of support. Rihanna fit right in as if they all knew each other. It was comfortable," the Daily Telegraph quoted a source as telling E! online.

Kemp, whose brother is autistic, previously swept the star off her feet after surprising her with a party for her 22nd birthday.

A source said: "It was so sweet and she was really surprised. She looked just beautiful. Matt really wanted to do something nice for Rihanna this year since she didn't have much of a 21st birthday last year. It was just her closest friends, good Jamaican food, a photo booth, dancing and a nice cake." (ANI)