This is also offence of rape as per 4th clause of 375 IPC.
However, Monkey Indian brains can’t believe that male can also be victim of rape.
"With her consent, when the man knows that he is not her husband, and that her consent is given because she believes that he is another man to whom she is or believes herself to be lawfully married."
Now if the word "Her" is replaced by "His", "Man" is replaced by "Woman", "She" is replaced by "he" and visce-versa wherever is applicable then, yes, It can be filed as a valid RAPE case.
You can file rape against her. Please take a chance.
Please see my profile links for sample petitions and other clues.