They are getting hitched today knowing nothing of each other's looks, family background or even soap preferences.
But Craig Cooper and Rebecca Murray, BRMB's winning Blind Date Wedding couple, will be intimately acquainted in a way few other newlyweds are.
On Friday the pair got the opportunity to pore over the minutiae of each other's financial worth - from property to life savings to the last pound of their monthly income.
At 5pm, they each signed a prenuptial agreement which will ensure that should the match prove not to be made in heaven, each will leave the partnership with exactly what they walked into it with.
Kevin Harris-James, one of the UK's most prominent divorce lawyers and the first port of call for many Premiership footballers after the fist-sized sparkler has been purchased - was the lawyer chosen to draw it up.
Mr Harris-James, a partner at Birmingham's Irwin Mitchell, has 15 years' experience in the field and is employed by couples all over the world. He said the legal agreement should help rather than undermine the union's chances of a happy ever after.
"One of the most common complaints for divorce is financial secrecy. 'He doesn't tell me what he earns' is something I often hear.
"We went through a full declaration of what they own so there are no surprises - property, motor vehicles, saving policies and income.
"Putting it all in a document can only make for an honest relationship.
"Although a prenuptial agreement is not legally binding in the UK, if properly drawn up it is a persuasive factor in the divorce court. One in three marriages fail; it's a reality which has to be faced," said Mr Harris-James.
"It is such an unconventional marriage the need for an agreement is greater than in the normal sense. The element of choice has been taken away and this couple needs to be protected legally in case it goes wrong. It would be irresponsible of the radio station if they did not advise it.
"I made sure that Craig understood that marriage is a commitment to someone in law - it is in the vows: 'with all my worldly goods I thee wed' - and that committment is recognised in death with the wife having entitlements.
"The idea of the prenup is whatever you take into the relationship you take away from the relationship and whatever you jointly acquire you divide equally at the end. It helps you though the early stages of a relationship."
One of the gravest legal aspects of his wedding that Mr Harris-James urged Mr Cooper to consider was what might happen if either died during the marriage.
"If he marries on Monday, goes on honeymoon on Tuesday and on Wednesday is killed in a tragic accident this relative stranger, under the law of intestacy and as next of kin, will inherit his estate," he said.
"If he had the same tragic accident and he was on a life support machine, this stranger could be given the decision of whether or not he lived.
"We drew up a will which, like the pre-nuptial agreement, ensures that Craig's wishes are put into effect should anything happen to him, and granted enduring power of attorney.
"So whatever befalls the couple after their date this afternoon, the future Mr and Mrs Cooper can rest easy knowing that in terms of legal provision, they remain what they started out as - strangers.
"Nobody wants to think about death and divorce but Craig readily acknowledged the necessity of it and he went away feeling a lot better about the whole process," said Mr Harris-James.
"Before he was on a tight-rope without a safety net. At least now he knows there is a safety net. It had been on his mind but he hadn't known how to approach it."
What did he advise his client on the venture?
"It is up to him whether he goes ahead with it, but I expressed to him at all times, he was not committed to it," said Mr Harris-James.
"They may have arrived at this wedding from a bizarre angle but legally you are like a normal married couple once you are married. I wish them all the best.
"But I advised caution."