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When a woman’s gut does a quick dance during a climax, especially when she’s getting multiple ones in a row. It’s like her abs are doing sit-ups without asking for permission.
My girlfriend looked like a human ab workout during her third orgasm. It was glorious.
He couldn’t stop laughing when she did her O-crunches. He said it looked like she was doing planks with her vagina.
She did O-crunches so hard, the bed started vibrating. Her roommate called the cops.