That is you have the guy coming to court saying he did not find his bride a virgin. If the parents can't produce the sheet with blood, then she is stoned. We have the Sages that depend on a drasha that she can't be married without two witnesses, but still the simple explanation of the verses seems clear. Add to that the end of the Parsha when a girl is raped and she thus has to be the wife of the person that rapped her. It does not say he has to marry her because she is thus already married. Rather it says he can not divorce her. Looking at the simple Peshat of the verses clearly indicates that there is no reason to stone the poor girl simply because she was not a virgin. Rather the stoning is because she is considered married to the first gut that had sex with her. Thus a married woman that intentionally had sex with someone else later.
Thus question: is there someone else in the Old Testament that would seem to contradict this?
The girl friend thing we find might mean no ketubah. There is a hekish between marriage and divorce so like one needs two witnesses so the other. still I wonder about a drasha that seems to be contradicted by the simple explanation of the verses.
(Of course even of it would mean she is married he still could be required to give a divorce document that would set her free.)
The idea of a זונה would seem to contradict the whole idea also.