Brown arrived with friends, and five minutes later, Rihanna, who had been partying with friends at another club, walked in with her friends, reports nypost.com.“Chris made his way over to Rihanna. He raised his shirt and was dancing promiscuously. Then they started dancing together and hugging and kissing,” said a source. If observers are to be believed, the pair was then seen going into the bathroom together, and then when Rihanna emerged, “she seemed a little ruffled”.