Married At First Sight Australia: Drunken best man disgusts bride's family with inappropriate speech

The inevitable tension that comes with a reality TV wedding of strangers was kicked into high gear during the second episode of Married At First Sight Australia when a best man failed to read the room during his speech.

Contestant Mick Gould was left wincing as his friend regaled the room with a tale of Viagra and booze, infuriating the brother of bride Jessika Power.

"What the f**k was that?" Powers' brother remarked following the speech, in which the best man went into detail about the effect the erectile dysfunction medication had on the groom.

"I thought it was disgusting," he told the producers.

"Why would you bring up Viagra? I don't want to think about you having sex with my sister.

"Obviously I'm very protective and from what I've seen from his best mate, I don't really think that highly of him at the moment."

According to the Daily Mail Australia, a guest at the wedding claimed the parts of the speech that made it to air weren't even the most offensive bits.

"It got so much worse. It was absolutely disgusting," the source told the tabloid.

"It was mortifying and nobody laughed."

Wedding guests were allegedly shocked to hear that the groom was hospitalized on the night in question, although that particular detail was edited out of the final cut.

Powers' father and brother later had a stern conversation with Gould, where the father-of-the-bride warned him: "treat her right, mate, because I'm a thunder clap".

Despite the embarrassing look into her new husband's past, the bride stuck out the rest of the reception.

Married At First Sight Australia is currently airing on Sundays at 7pm and Monday -Wednesday at 7.30pm on Three. Previous episodes can be viewed online on ThreeNow.