Students at BYU or possibly other mormons attempt to find a loophole in the no-sex-before-marriage rule of the LDS faith.
Its quite simple.
Step 1: Drive to vegas as a heterosexual couple.
Step 2: Get a quick marriage.
Step 3: Fornicate your brains out.
Step 4: Get said marriage enolled.
Step 5: Return home and be able to say you have not had sex outside the bonds of a legally recognized marriage
And the loop hole is complete.
You realize that even though a BYU SuperDate sounds like it is a legitamate loophole you cannot fool God and it is clear that your intentions are sinful and you might as well just fornicate without the hassle of driving to Vegas.