unhealthy mind?

I'm not sure of somethings wrong with me or if this is normal. 
When it comes down to sex, I don't want the casual sex or normal rough sex.
I want full blown torture/painful sex.
I want him to treat me like he owns me and hurt me, bruise me and cut 
me and tie me up. 
I'm 17. I really don't think this is normal right?:(