04/26/2013 07:56 am ET Updated Jun 26, 2013

Rihanna To Katy Perry: 'I'll Still Let You Spank Me'

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She may be bad, but she's perfectly good at it.

After a whirlwind trip to a Miami strip club over the weekend, Rihanna tweeted at BFF Katy Perry, cheekily telling the popstar that she'll let her smack her booty the next time they hang out.

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