The combination of a couple's initials made their wedding photos go viral after making a hilarious mistake.

The photo shows the bride and groom holding up their initials which read 'S&M' - meaning 'sadism & masochism'

READ: This couple had a super cute minion-inspired wedding [PHOTOS]

Three of the tallest guys in the train held letters which read "I do".

The hilarious photos were uploaded by the bride's sister on Reddit with the caption: "So... My sister Stephanie married her boyfriend Miles last week…"

It has since gone viral, gaining over half a million likes.