It’s Britney and Rihanna, bitch. Two of the world’s biggest female pop stars bust out the whips and chains on the remix to “S&M,” originally included on RiRi’s Loud album. The newly-minted version of the tune sees Brit getting naughty alongside the Bajan babe, taking over for the second verse and adding some stinging lyrics to the fold.

“Just one night full of sin/ Feel the pain on your skin/ Tough, I don’t scream mercy/ It’s your time to hurt me,” coos the Femme Fatale.

The ladies’ collaboration happened after RiRi asked her fans who they would most like to see her work with. “In order to do a Rihmix, it had to be major!” she told Z100’s Elvis Duran. “It’s very strange because Britney doesn’t do features. She never does. And it was really amazing that she really wanted to be a part of this song. … It made it really, really special because you never see two pop female artists doing songs together anymore.”

She hopes to shoot a video, although nothing has been planned. “I hope so… I want to spank Britney,” she teased.