How could anyone possibly resist <| sep |> What an unusual situation ! I ' ve got a couple of questions , just to help clarify . 1 . If she ' s your girlfriend , but you ' re not interested in physicalsexual intimacy at all , what distinguishes her from simply a very good friend ? Generally speaking , in Western cultures , girlfriendboyfriend are used in a romantic sense , and eros contains within it the sexual urge . 2 . Why do you want to get married ? If you don ' t plan on having sex , don ' t want children , and are already living together , what would being married do for you that your current arrangement doesn ' t ? After 13 years , it seems that you ' re not terribly bothered by having to explain that she ' s not your wife . That being said , there ' s nothing in this situation that would be an impediment to conversion . Living as brother and sister is frequently referenced . You may want to look into what ' s known as Josephite marriages , which is essentially a marriage without sex . As someone else has already mentioned , if you do decide to consummate your future marriage , the normal rules of contraceptive use and abortion would apply ie don ' t .