Sofia Vergara's Proposal Caught on Tape?

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While she's never officially given credence to the engagement reports that swirled around her 40th birthday bash in Mexico, Sofia Vergara's rumored plans to wed may have just been confirmed by her camcorder-wielding son, Manolo.

In the latest video for his Mi Vida Con Toty series, Vergara's 19-year-old son reveals he unintentionally captured a key moment during their exploration of the Mayan ruins— Nick Loeb popping the question to his mom at the top of the pyramids!

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"As a little girl, she always wanted to go to the top of the pyramids. Unfortunately, people are not allowed to do that anymore. But since it was her birthday, her team worked for months on end to get her special permission to go up!" he explains. "Once they were to the top of the pyramid, my mother's longtime boyfriend, Nick, proposed to her."

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As the couple descends, Vergara has a huge smile on her face, sporting a new ring on her left hand. Later, she allows a close-up shot of the sparkler to camera at Manolo's request.

The 8-minute video also features a festive party with 107 of the Modern Family star's closest pals in which the lady of the hour can be seen wielding the suspected engagement ring throughout.

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The engagement rumor first broke in July when a photo was posted to Twitter by her friend Fernando Fiore, revealed Vergara with a sparkly ring on her left ring finger.

The Modern Family star and her longtime boyfriend have been dating since 2010, but briefly split in May before rekindling their romance by early June.