(NYDAILYNEWS) — A Florida “sadomasochist” raped and tried to kill her girlfriend during “rough sex” romps, authorities said.

Mia McCarthy, 23, violated her older partner twice, refusing to stop even as the woman suffered in pain, an affidavit says.

The first time was in July on the girlfriend’s 52nd birthday. She told a Palm Beach County Sheriff’s detective they went to a nightclub in Delray Beach to celebrate. McCarthy used the opiate Kraton and they smoked pot, she said.

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