There was a time, in the not-so-distant past, when family and friends of a mom-to-be found out the sex of a baby when it was actually born.

Then couples started electing to find out their baby's sex via ultrasound, somewhere around the 20-week mark. Maybe they would share the news with a few people over the phone, or maybe via email. Maybe they would keep it to themselves.

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And in the last few years came the trend of "gender reveal" parties, where a couple would invite family and friends over and announce their baby's gender by cutting into a pink or blue cake. Then it was pink or blue balloon releases. There was even a couple who revealed "Gangham Style." Gender-reveal parties have become big business in the United States, with conversations related to the topic up 140 percent in one year, according to BabyCenter.com.

But the latest trend - or "trend-lette", as the Rebecca Michals, global director of Community Baby Center put it, because it's still so new - is the paint flight gender reveal party. That's getting a couple of buckets of pink and blue paint, having a third party find out the sex before you-perhaps via a note from your doctor-and pick the paint to use, closing your eyes, throwing paint on each other, having a photographer take the photos and finally, opening your eyes to discover if you are having a boy or a girl.

Non-toxic paints only, please, and be sure to check with your doctor if you have any concerns.

"Couples are looking for something visual and unique and speaks to something important to them and their family," Michals said. "Social media is a lot of what's driving this trend."

Because if it isn't shared on Facebook, did it ever really happen?