Public Sex

My s/o and I have a GREAT sex life. The thing is, we've only had sex at our own homes and I want to be adventurous. I've been dying to tell him I want to have sex outside. I want him to bend me over the back of his car and...lol...in the middle of the night. I'm not shy with him at all, but I can't tell him this lol. What do you guys think?