Without really knowing how, Tifa ends up facing Sephiroth on her own. Before she can realize, he puts his hand on her and she's transported back to the past, when she found her dead father. Sephiroth is there, smirking. She takes his sword and tries to attack him but is quickly controlled. Just one look in Sephiroth's eyes and her whole body is paralysed. Sephiroth takes the chance and rapes her for hours, neglecting no part of her beautiful and plump body.
Once he's done, Tifa gets sent back to the present. There was no effect on her body but her mind was shattered.
She still managed to talk:
"Don't show me these fake memories, this never happened...
- Tifa, can you really tell me these memories were fake, or are the memories you think you have the actual fake ones?"