Rob Kardashian and Rihanna got the romance rumor mill spinning earlier this week after they were spotted go-karting and clubbing in Los Angeles.

Since he had already been linked to Roc Nation's Rita Ora, Rob had many fans wondering if he was double-dipping in the record label's roster of hot singers.

But, Kardashian is clearing the air about all those Rih romance rumors, telling Ryan Seacrest, "It was just me and a bunch of girls [at the go-kart place]. It's because Rihanna's a friend, and she is friends with my friend Capricorn, and it was Cap's birthday. We all went out to celebrate our friend's birthday. It was fun. It was a good night."

While he was pretty insistent that there was no romance brewing with the Talk That Talk singer, he was a bit more coy about his feelings for Ora.

They made headlines earlier this month when they got presumably temporary tattoos of each other's names on their knuckles. Talking to Seacrest, Rob didn't actually deny their relationship, only sharing, "Rita is in the U.K. I'm just a fan. That's all. I'm a big fan. She does have tattoos."

When asked how he knows about her tats, he teased, "I'm a fan."

In July, after she had been seen out with Rob, Rita told Complex magazine, "It's not really a relationship. It's not that intense. He's a cool guy. We're close. We're good friends. I got his back and he's got mine."

Do you think Rob would be a good match for Rihanna or Rita? Tell us in the comments.