Insufficient Mating Material --survivorman with sex... food allergies, assassins

When a Royal shotgun wedding goes wrong,
When the bride blasts the reluctant groom onto his butt...
What's a god-Prince to do?

Maroon the politically embarrassing couple in a secret location?
Shower them often with rain laced with aphrodisiacs?
Keep them wild and wet until they come together!

But what if they are not alone on their island?
What if someone very powerful is determined to kill them?