Trying to pun it into the speech will just make you look like a dick who wants to upset the Nana's and Aunties
You need to tell a story were the bride was slightly unreasonably upset with the groom but, everything worked out in the end. When explaining the slightly unreasonable upset causation, say, now it's not like there was chunks of dead prostitute lying about the place, our hero the groom had forgotten that it was their 9 week anniversary or some such thing.

You can borrow my opening joke if you want -

It's wonderful to be here today and most certainly much better than some places in Africa where a father of the brides blessing requires the groom to present large amounts of cow dung as a tribute to her tribe - then you mumble clearly, "sounds like a bullshit deal to me".
(bad_advice QOTW survivor from the first trollocost!, Mon 28 Apr 2014, 13:55, 1 reply)

You're right, but only if I make a scene out of it
I quite like the idea of a subtle enough pun that nobody notices except the stags, who then laugh seemingly at nothing. Isn't that the point of a pun? That it has two meanings?

Additionally, I strongly suspect that we're talking about an audience that's not going to want to hear the word 'prostitute' at a wedding in any circumstances.
( pineapplecharm D d M Y, H:i, Mon 28 Apr 2014, 14:06, closed)

I hate that sort. Fucking adult human beings and their sense of reasonable behaviour.

( Dr. Shambolic je suis charlie, Mon 28 Apr 2014, 15:03, closed)

FGOS
If you can hide it in a torturous pun, it's a decent compromise.

Only risk is that the stags won't catch it until you explain it to them afterwards.
(username failed moderation, Mon 28 Apr 2014, 15:23, closed)