BDSM against will

Date: 9/3/2017

Me and a group of strangers somehow end up talking about BDSM. One of them invited us back to her place. I am female and straight btw. I decline and head off but she says "no, I'm not letting you go after you turned me on so much" so I try and run away but she catches me. Next scene I'm tied up, gagged etc. and she's whipping me. I'm told I have 7 days to prove I can be a good bdsm submissive or I won't live to tell the story. This scares me into pretending to enjoy it. She then starts licking and playing with my body as I struggle and beg her. I then wake up.