The moment the gender reveal goes VERY wrong because the smoke cannon sets off the fire alarm

This is when a couple’s gender reveal party descended into chaos when their smoke cannon set off their fire alarms. making guests stand on top of each other for almost an hour to try and turn it off.

Mother-to-be Stonney Sabinorio, 29, and husband Francis Sabinorio, 27, from Brent, north-west London, had invited their closest friends and relatives to a gender reveal party at their home on June 1.

But moments after pink smoke exited their cannon — showing guests they were expecting a girl — their fire alarms went off.

Footage shows when the smoke contacts the fire alarm on the ceiling before a continuous high-pitched warning sound is heard.

The happy couple pose for sophisticated photos – while panicked partygoers get creative by forming a human pyramid and waving the alarm with a towel in a desperate attempt to turn it off.

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Stonney says she thought the gender reveal cannon only contained confetti, and that she wouldn’t have set it off indoors if she knew it had smoke in it.

“Bringing the cannon was such a happy moment. We were given 5-10 minutes to enjoy it, and then the alarm went off,” she explained.

“We thought it was confetti. Of course if we knew it was powder we wouldn’t have used them as we were indoors.

She added that the siren went on for so long that they just “got used to it” — even continuing to dance as the screams continued in the background.

“I really saw the teamwork of everyone. They carried each other and everyone came to us to take pictures, but my eyes were only on the alarm.

“Everything in my head was chaos. I smiled on the outside for all my friends who wanted to take pictures of me, but my head was really on that alarm.

“I wanted it to go out — I can’t do anything either. I’m pregnant so I wouldn’t even be able to do it myself.

Fortunately, after nearly an hour of struggling with the insistent alarm, a partygoer flipped a switch in the main power system downstairs – and peace was restored.

The mother-to-be claims the scene was “chaos” and she feared the fire department would have been called if they hadn’t calmed down the noise in time.

‘No one knew how to stop it. We tried to figure it out. We were afraid firefighters would come if we didn’t turn it off.

“We tried to blow air on it with a towel and carry each other.

“Many people tried to help us. There were people wearing each other who didn’t even know each other – they were just trying to fix it.

‘When the DJ saw that the alarm was not going to go off any time soon, he started playing disco music and people started dancing over the alarm. We just got used to it.

“We finally found the main power, which turned it off.”

Despite feeling like the alarm disrupted the big reveal, Stonney still sees the unfortunate incident as an “amusing memory” to look back on.

The mother-to-be is now looking forward to the birth of her baby girl in August.

“My husband and I were so happy, especially when we found out about the girl,” she said.

“It was just annoying because the momentum stopped when the alarm started ringing.

“After we turned it off, we just got on with the party.

“Some people went home, and some people stayed and enjoyed the rest of the music.

It’s a good thing the alarm went off at the end, after the gender reveal, because what if that happened halfway through? It would have ruined everything.

“It was good timing, it was late at night anyway, so it got other people going home, otherwise we would have stayed there until midnight.

“It’s a really funny memory to look back on. It’s very memorable. Me and my family designed everything from start to finish and everyone had a great moment [together] also.’