I promise, there is no need to live together or have sex prior to marriage for it to work. Knyte and I are doing just fine sexually (the only thing missing is more time and less tiredness, but that comes from choosing to have kids), and we never had sex before the wedding night (okay, so we really didn't have much sex on the wedding night either, but I was tired ok).
I did the same thing and it didn't exactly work out well...