Tarek El Moussa and Heather Rae Young share sweet moments with his children ...

They recently celebrated their engagement with a bash in Newport Beach, California.

And Tarek El Moussa and his fiancée Heather Rae Young, 33, couldn't get the perfect day off their minds day as they posted some cute videos featuring Tarek's young children on Saturday.

The 39-year-old Flip Or Flop star and his Selling Sunset star wife-to-be shared the clips while they were on a Hawaiian vacation with his daughter Taylor, 10, and son Brayden, five.

Happy day: Tarek El Moussa, 39, and Heather Rae Young, 33, posted some cute videos with his children that were taken last week at their Newport Beach engagement party

Happy day: Tarek El Moussa, 39, and Heather Rae Young, 33, posted some cute videos with his children that were taken last week at their Newport Beach engagement party

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On Friday, Tarek posted a humorous clip featuring Brayden that was filmed while they posed for photos at the engagement party with Heather.

The reality star looked dapper in a black velvet tuxedo with peaked lapels, while Heather stunned in a low-cut white patterned tank top and matching sparkling white pants.

Brayden also looked mature in a black polo shirt and black pants.

While Tarek leaned down to sweetly kiss his son on the cheek, Heather asked if he'd had the 'cotton candy' at the party.

Boys club: On Friday, Tarek posted a humorous clip featuring Brayden that was filmed while they posed for photos at the engagement party with Heather

Boys club: On Friday, Tarek posted a humorous clip featuring Brayden that was filmed while they posed for photos at the engagement party with Heather

Caught sticky-handed: Tarek teased his son about eating deserts and pointed out that he had sticky hands from eating the cotton candy in the cute clip

Caught sticky-handed: Tarek teased his son about eating deserts and pointed out that he had sticky hands from eating the cotton candy in the cute clip

'Your hands are sticky,' said Tarek after swiping his son's palm. 'He had the cotton candy!' he called out to everyone around them.

In his caption, Tarek admitted he couldn't get the perfect day off his mind, even as he and his family vacationed in a Pacific paradise.

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'In Hawaii but still thinking about last weekend… This is one of the only vids I have with Bray from the party — this boy was eating up all the desert he could find while avoiding all of our photos,' he joked.

'I guess the apple doesn’t fall far from the tree.⁣ He’s too cute though so we let it slide,' he added.

Sweet: Earlier this week, Heather shared a sweet video of her bonding with Taylor, who had on a black-and-gray patterned dress

Sweet: Earlier this week, Heather shared a sweet video of her bonding with Taylor, who had on a black-and-gray patterned dress

Heart-warming: 'No boys allowed!' Heather joked as she wrapped her arms around her future stepdaughter. She recounted how Taylor 'melted' her heart when she sang a song during their first meeting

Heart-warming: 'No boys allowed!' Heather joked as she wrapped her

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