Ask her why she made this video

"How... why did you make this video?" I ask her clearly in shock.

"No reason really. I just want to have a memento of our first time. Don´t you think it is totally hot? It is much easier to masturbate with this. But don't you worry. You know, it will be our little secret. Your mum and the school will never know about it as long as we are friends." Tiffany says happily before jumping on her bed again.

She kisses my cheek and wispers into my ear, "I've already promised Mark to give him a special present today. You want to stay my friend right? As my friend you can't let me down."

I am not streetsmart or something and Tiffany is all smiles talking about friendship. However even I know that she is clearly blackmailing me with this video. I am at a loss and don't know what to do. She might really send it to my mum if I refuse her. More tears start to drip down my face.