"You have a fiancee." What if your parents suddenly told you that? Would you be worried because you don't know what kind of girl she is? Or would you be excited? For example, what if she was a much older woman who was incredibly cute and kind, and who seemed like she could teach you naughty things? It's no exaggeration to say that being a fiance means that you're guaranteed to have sex with her. Since you'll be able to have sex once you get married, there's no problem with cumming inside her now!