I do not see how the Church can budge on any of these issues without effectively renouncing the Catholic faith.
There is a historical conditioning of dogma. The meaning of the pronouncements of faith depends partly on the expressive power of the language used at a certain point in time and in particular circumstances;
sometimes dogmatic truth is first expressed incompletely but not falsely, and at a later date receives a fuller and more perfect expression, The Church usually has the intention of solving certain questions or removing certain errors, and these things have to be taken into account in order that the pronouncements may be properly interpreted; sometimes the truths enunciated by the church magisterium are in terms that bear the traces of the changeable conceptions of a given epic. Even though one may insist that a doctrine is infallibly taught by the church, that doctrine is historically conditioned and may have to be reshaped.
The church basically disapproves of sex
I think the Church admits to the pleasurable aspects of sex, except when it is not open to procreation.