His vision (as to the general idea, not necessarily the details) of sex in heaven might be right, but Saraceni's, and the ancient Greeks', notion that Aphrodite wasn't quite free to please and be pleased may have been wrong
To reiterate:
The Sadducees were wrong about resurrection and wrong about the way they wanted to cast doubt on this idea of God's. Jesus spoke and we know there will be resurrection and there will be no husband or wife in heaven, and whoever makes it there will be like angels. Except for the bodies and a philosophically justified expectation that in the most fundamental way we should remain the way we were conceived in God's mind and made in the beginning: male and female.
(One solution that would make sex in heaven less likely would be a dramatic change in the original creation, in which I don't believe, but which could possibly be suggested by the passage from Genesis quoted above: 'God made man [singular] in His own image [singular]: male and female'. How about a merger of the two aspects of human nature in one person, just as they are - according to one possible interpretation of the fragment - merged in God? Then again, we believe in one God in three persons. Whatever the answer, let's just hope that if there is sex in heaven doing it will be easier that doing philosophy about it on earth).
*On the Question of Sex
