Pinkett made the revelation in front of her shocked daughter on "Red Table Talk."
Jada Pinkett Smith's threesome history isn't something she's necessarily down to repeat.
In a sneak peek at Monday's new episode of "Red Table Talk" -- which will feature a "throuple" joining the show -- Smith herself is asked whether she's ever been intimate with two partners at the same time.
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"I had a threesome once. I was very, very young. Like early, early 20s," she reveals, as her daughter Willow Smith reacts in shock, blocking her eyes. "I didn't like it. It just didn't have the level of intimacy. But I tried it once and I was like, 'Well, that's not for me.'"
Seemingly relating to her guests, she added, "But I always think if I was in love with two people, that's another level. I could see and join a threesome then, but I was a kid."
"I was just like, I saw two cute people and I was like, 'Hey...'" she joked.
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View StoryAppearing on "Jimmy Kimmel Live" earlier this month, Jada said Willow was the one who found the guests for the upcoming episode.
"It's a throuple that Willow was actually following on Instagram," she said. "That's how it all came to be. She became very curious about this whole polyamory thing."
When asked about whether she thinks the 18 year old could end up in a polyamorous relationship someday, Jada added, "Possibly. I don't know. Listen, she's 18 who the heck knows what's going to go down."
"Red Table Talk" airs Mondays on Facebook Watch.