In ancient times marriage often involved bridal kidnapping to some extent. In summary, the groom would kidnap the bride. It seems that, sometimes, it was a sort of celebration where the bride's family knew it would happen, the bride was consenting, and the groom would show up some day to whisk away the bride. Sort of like a tongue-in-cheek roleplay. Sometimes it wasn't so consensual and you can imagine how that went.
In other words, the MC would basically have to out of nowhere whisk Asterion away to some private location for their honeymoon, where they'd fuck like animals.
Very classical and historically accurate.