Dominate sex!!

I've never really have had sex yet but I really like the idea of having a guy bend me over a desk and spank me over and over!! Pushing on my hips and groaning, holding me down fucking me all night and day!  The only problem is my boyfriend. I don't think he's in to all of it. He's ok with the spanking but I just think that he's not in to it or thinks he's going to hurt me. Don't know what to do. 🙁