Two newlyweds were left more than a little red-faced after the best man at their wedding delivered what people are calling the "best punchline ever" during his speech.

For Scottish groom Gary, there was probably nobody better to be his best man than his brother Derek. I mean, who wouldn't want their brother to say a few kind words after marrying the love of your life?

Well, although a few cheeky jokes are to be expected in a best man speech, Derek took things to a whole new level when he took the mic to congratulate his brother on his nuptials to his new wife, Kirsty.

The wedding took place in Doubletree Dunblane Hydro in Scotland, and was captured by videographers We Are One Wedding Films. In fact, after capturing Derek's speech in all its glory, the company knew they had to share it with the world.

Recalling the moment Derek was unexpectedly introduced to Kirsty one Christmas morning, it wasn't long before the best man had the entire room in hysterics as the bride and groom looked utterly mortified (in a good way) that he had chosen to share this particular story.

Check out the moment unfold in the video below:

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Derek recalls: "One Christmas morning, I got up in my mom and dad's house, buzzing I may add. Walked down the stairs to open my presents only to be greeted with a slap from my mom. 'What did I tell you about bringing folk back here?'

"I say, 'What are you talking about mom? I've been in my bed the full night'.

"Obviously she's not thinking about golden child next door."

With the scene set, the best man continues: "So we're in the living room opening a couple of presents, me, my mom and my dad, and we hear rustling from the wee room in the auld house, as we called it.

"At this point I go up the stairs, open Gary's room, and there you have it, Kirsty Currie, lying with her legs at ten to two.

"She certainly never came down the chimney in that position anyway. Merry Christmas, Kirsty."

It's the sort of best man speech you can only dream of seeing, and We Are One Wedding Films captioned their post: "This could be the best punchline from a best man's speech ever."

Over on TikTok, the video has amassed over 5.5 million views and left social media users howling.

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"The absolute FEAR in the groom's eyes there. That's when you know a speech is about to be good," one person commented, as another added: "The Scottish have a way of telling stories that isn't matched anywhere."

I can honestly say that after watching Derek's speech, I'm tempted to get a divorce and then remarried - just so I can ask him to be my best man.

Featured image credit: redsnapper / Alamy

Newlyweds left red-faced as best man delivers 'best punchline at a wedding ever' during speech