Virginity is not really a physical state in the modern-day western world, anyway.
It's more just an ideal.
She'll get away with it provided no ex comes forward claiming to the media that he slept with her years ago.
Even in that event, though, it's his word against hers, as there probably weren't any witnesses even if it happened.
If she's not a virgin, and if she's smart, she'll preempt this by contacting every guy she's ever slept with and offering each of them a 1% cut to keep their mouths shut.