[newzjunkey]

It's been quite some time since I had my studies (I need a refresher) but I recall that since marriage is "until death" those who have outlived another spouse can remarry. There wouldn't be a communion prohibition either. A new marriage is under different grounds, however. I can't remember the specifics but I recall a second marriage is not about the procreative act and sex inside this second marriage is acceptable.

ALL: Corrections, clarifications, resources welcome.

[Mrs. Don-o]

You wrote: "I recall a second marriage is not about the procreative act and sex inside this second marriage is acceptable."

I am not sure what you mean by this. A second marriage, if it is a true and valid marriage (after an annullment or after the death of the first spouse) is just the same sacramentally as a first marriage. The spouses can have intercourse, and of course the intercourse should be natural (not deliberately contracepted.)