when you talk of love, you mean such relation between a man and woman. This itself is self explanatory. There is nothing like non physical love.No need to say, sex is essential component of love.
Sex is a part of love and there is nothing wrong in it if you do it with the person with whom you love or seriously involve with. It helps in uniting two minds and souls into one and the bonding gets stronger with it...
Thanks to all. at least we can get some knowledge from this type of discussion.I think love is not completed without sex ie in one relation not in all.