Steve and Tony arguing over silly wedding details like what place settings to use and which band to hire, and then deciding to spar to see who wins because they really can’t come to an agreement otherwise, but then this sparring turns into sex and then they REALLY don’t get anything done for the next few hours and then THAT turns into a heated debate on where they should go for their honeymoon, and that turns into MORE sex.

In the end, they just decide to elope. :)