Xavien Howard has been sued by a woman who claims the NFL star filmed "hard core" sex acts with her without her consent ... and then shared them with at least one other person -- though the Miami Dolphins player is adamant he'll fight the case.
The woman, ID'ed only as Jane Doe, made the claims in a lawsuit filed in Florida back in May.
In the suit, she alleges she first made contact with the cornerback in 2016 over social media direct messaging ... before the two began dating in 2022.