O-crunches
When a woman’s gut contracts like a madman during a big orgasm, especially when it’s happening over and over. It’s like her abs are trying to escape her body.
She did O-crunches so hard, I thought her belly button was about to pop out.
During her multiple orgasms, her gut looked like it was doing push-ups. I told her she was a human ab machine.
Her O-crunches were so wild, the lights started flickering. I thought it was a power outage.