When the day comes that Orion and Calypso seal the deal, I think there will be a bit of spice but it will be
fairly typical as far as the actual sex acts go. My feeling is that Caribdis will want that moment to
really express that sense of Calypso's freedom, that she's letting go of who other people want her to be and is being true to herself, she's finding peace with all of it and embracing love and the new life moving forward. The sex will sort of be the "final" point in that journey. The release of all that history, if you will.
Or who knows. Maybe Orion and Calypso will end up squeezing it in amongst some other dire situation, like they get trapped somewhere but have a little safe haven for a moment.

Like one of the earlier scenes with Annie or Luna and so on.