ANY SEX outside of marriage is prohibited by the Bible, so there is NO SEX in heaven if there is NO marriage...those aren’t my rules, they are God’s.
I don’t see any reason to assume that the laws of the Bible, written for mortals here on Earth, are forever and eternally applicable to resurrected humans.
I also see no reason they would not be eternally valid.
IOW, no data. Much in the same way we have little data about what eternal life in heaven will be like in other ways.
Probably not needed anyway since sex and the pleasure of it are only dim approximates to the Joy shared by all when the Bride of Christ is finally joined to her Groom!
so there is NO SEX in heaven if there is NO marriage................. Whoooooa! Can we get a petition circulated and request a change under the SEX portion? j/