To really understand part of this story you need to know that for me, in my stories, the term 'fucking' does not just mean the act of penetration. It is a term I use to distinguish from the term 'lovemaking'. Lovemaking can (and does) involve penetration, but 'lovemaking' involves the emotions and caring as well as the physical act; 'fucking' is purely about the physical act with no emotions involved.