Rihanna is desperate for frozen yogurt

Not even Rihanna putting on her full sex-kitten act could persuade popular Hamptons fro-yo spot Buddhaberry to reopen its doors.

We’re told the “Bitch Better Have My Money” singer arrived with bodyguards at the Sag Harbor staple just before 11 p.m., as staffers were packing up.

“She was pleading to come in,” said a source, who added, “She was caressing the front door with her body.”

Despite RiRi’s seductive moves, employees didn’t open for her, because “the machines were off and toppings were away.”