Threatening for file Rape case

hello sir matter of fact is that if the sexual act between you and your partner is with her consent then there is no issue, if she also had the consent to perform that act but merely i would suggest you if she is blackmailing you go and complain to nearest police station and state everything show the proof that she went her nudes on her own consent and also show some evidence regarding the consented sexual act between you and that particular girl you can also take High court protection for yourself in order to avoid any future consequences.