I used teh word normal instead of heterosexual just to piss you off.
Story here.
[I]n the resurrection whose wife of them is she? for seven had her to wife. And Jesus answering said unto them, The children of this world marry, and are given in marriage: But they which shall be accounted worthy to obtain that world, and the resurrection from the dead, neither marry, nor are given in marriage: Neither can they die any more: for they are equal unto the angels; and are the children of God, being the children of the resurrection.
-- Luke 20:33ff.
The reasons why his followers weren't supposed to marry are complicated, theological and not generally understood by any church, being the same reasons for requiring personal poverty of his followers. On these NT Wright will be of no help to you.
