Is it normal for your sister to call your boyfriend her baby and shaking her butt in front of him at the club?

Then on top of that she posted a video on facebook in her bra and underwear.
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2 mo
My friends are the same way... they use to have their butt cheeks out dancing in front of my man..
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2 mo
He never did look away. he use to smile at all of them while they were dancing in front of him.
Is it normal for your sister to call your boyfriend her baby and shaking her butt in front of him at the club?
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