
To be factually correct, "Rape Play" is a form of BDSM. Just because you have strong feelings or opinions against it, does not take away from that. The key pillars of BDSM is "safe, sane, and consensual". The fact that she signs a contract with already agreed to terms, all participants are willingly bound to that contract (to honor and respect what she gave permission to have done to her), and the fact that they are ensuring her continued permission and safety (through safe words, check-ins, and hand signals) throughout the entire event, meets all those pillars of safety. Some people have more extreme fetishes than others. But all of this is 100% BDSM.

BDSM is very wide and varied depending on people's tastes, and kinks. It can be rough or soft, gentle or hard, simple or extreme. It can be whatever you want it to be, as long as it is mutually agreed upon, it is within the realm of sane play, mutual respect for each other's body and safety is maintained throughout the entire "play scene", and everybody's safety is assured.
Sorry but I only see trashy sex and basic porno scene here... She gave her consent, all right. She has extreme fetish, okay. But BDSM is not just being "rough", is also about sensuality, no ?