Kim Kardashian grills Rob’s girlfriend Rita Ora over dinner

London: Protective elder sister Kim Kardashian recently joined brother Rob’s new girlfriend Rita Ora for dinner and gave her quite a grilling.

The reality TV star and her rapper boyfriend Kanye West, 34, took time out of their busy schedules to share a cosy dinner with her brother and his girlfriend.

After pre-recording an appearance on Alan Carr’s Chatty Man, the 31-year-old headed to Zuma Japanese restaurant in Knightsbridge.

Following their meal, Kim and Rita, 21, got to know each other during a girlie chat, while Rob, 25, was occupied with a male friend.

Meanwhile, Kanye and Jay-Z were spotted making an exit soon after the meal, living the rest of the group to chat.

It appeared Rita and Rob may have gone on elsewhere after they were pictured arriving back at their London hotel at 1am on Thursday morning.

Kim arrived in London on Wednesday morning and has a busy few days before heading back to the U.S.

On Friday, she launched her new fragrance True Reflection in Debenhams on Oxford Street and promoted the QuickTrim weight management product in Westfield shopping mall on Saturday.

Meanwhile, her boyfriend Kanye will be taking to the stage with Jay-Z for London leg of their ‘Watch The Throne’ tour on Friday night.

Rob and Rita have been romantically linked since the end of last year, with the reality star only confirming their relationship on Twitter last weekend.

When she scored the No.1 single in the UK charts with R.I.P., he tweeted his love for her.

"You did it. I love you and you’re my wife," the Daily Mail quoted her as tweeting.

He then re-tweeted a photo of her holding a celebratory chocolate champagne bottle with her single in icing, saying: ‘That’s MY baby.’

He continued his profession of love for the singer by tweeting: "But I LOVE MY WOMAN! I’m so proud of You!"

Accompanying Rob and Kim on the trip to the UK is E! camera crews for their reality show.

The footage will be part of the seventh season of ‘Keeping Up With The Kardashians’, which premieres in the US next week.