Don't feel obliged to write...it is up to you and you alone if and what you want to share. That being said...thank you for sharing your question.. Takes courage to do so..I respect that.
I read about the incident. So sorry that happened to you. I am always a bit ashamed of being a man when reading such a scandalous act of a male.
Listen to me...when certain parts of your body are stimulated you can't help your body responding...that's what the "forced orgasms" in bondage videos are all about. DON'T blame yourself for it. Even if you body responded, even if you did get aroused, it was still wrong what that man did..because you didn't want it. Period. He is the rapist, you are the victim. He should NEVER have done that to you. Period again!
To me, it looks like it may be a good sign you think about sex again. You are a young girl, you should enjoy sex, it is part of your live. Don;t let that bastard take that away from you.