Will Smith opened up about the time his mom caught him and his then-girlfriend having sex in the kitchen at 4 AM..

In his self-titled memoir released on Tuesday, November 9, the actor wrote candidly about Melanie Parker, who he was "deeply and totally in love with" as a teenager...

The pair met at high school, with Will describing her as "beautiful" with a "beguiling mixture of insecurity and quirkiness surrounding a simmering core of artistic brilliance."

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Parker lived in Philadelphia with her aunt, because her mother was incarcerated for murdering her father. She was kicked out of her aunt's home after getting into a fight with her.

Fearing that Parker would be "sent back to Minneapolis and placed into foster care," Smith said he implored his parents to let her temporarily stay with them.

They agreed, with Parker staying in the basement and Smith promising his mother "no sex." But the actor broke that promise less than three months since Parker moved in with them.

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The actor vividly recalled his mom, who should have been sleeping, going to the kitchen for a cup of coffee one day.

"And wearing slippers far too quiet to defend her delicate sensibilities, she approached the threshold of the family kitchen," he wrote.

"Still innocent, she flipped the light switch as she had done tens of thousands of times before. But this time, her eyes landed upon her eldest son and his girlfriend deep in throes of reckless lovemaking."

"As a teenager, outside of physical injury, you cannot feel worse than having your mother catch you and your girlfriend doggy-style on her kitchen floor," he added.

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Smith said that his mom stormed back to her bedroom after interrupting and Parker later moved back in with her aunt. "I'm still not exactly sure why I did what I did that night," he wrote.

"To this day, I have no idea what I was thinking. Of all the experiences I am sharing in this book, this is the individual moment of personal behavior that makes the least sense to me."

The actor said that he was only 16 at the time but was "all in" and "determined" to build a life and family with Parker.

Featured image credit: REUTERS / Alamy

Will Smith recalls the moment his mom caught him 'deep in throes of reckless lovemaking'