Why Princess Eugenie is opting out of a prenuptial agreement

New details are starting to emerge about Princess Eugenie and Jack Brooksbank's wedding – from how much it will cost to whether Eugenie and her soon-to-be hubby will be signing a prenuptial agreement.

The former: reportedly $3.5 million on security alone. The latter: nope. Prenups are simply not a 'done thing' in the royal family.

Think about it: a prenup is designed to protect the assets of both parties in the case of a divorce and all of Eugenie's assets belong to The Crown. Even her personal fortune, rumoured to total $8.5 million, is held in a trust that was created by the Queen.

The house in which Eugenie and Jack will live – Ivy Cottage – is a royal property too, meaning neither of them technically own it. 

Katie Nicholl, author of Harry: Life, Loss and Love told Town & Country, "I don’t think members of the royal family sign prenuptial agreements. It’s commonplace with celebrity marriage, but this is not a celebrity marriage, it’s a royal marriage."

RELATED: Why Prince Harry chose not to get a prenup with Meghan Markle

And royal marriage equals serious business.

All four of the Queen's children did not sign prenups, even though three of them have been divorced. Famously, neither did Harry and Meghan or William and Kate.

But also, prenups in general "are just not a British thing", royal author Ingrid Seward told People at the time of Harry and Meghan's wedding. Especially because they're not even legally binding in the country. 

Royal assets and laws aside, we think foregoing a prenup is kind of romantic. It seems like Eugenie and Jack are intending to go the distance. Naw.