Caitlyn Jenner brings Sophia Hutchins to watch her son Brandon Jenner sing at ...

Brandon Jenner played the Malibu Chili Cook Off on Saturday.

And the 37-year-old heartthrob got a bit of parental support from 68-year-old Caitlyn Jenner, who sat loyally in the audience to watch.

Caitlyn was joined at the cook off by the 22-year-old trans model Sophia Hutchins, whom she has been rumored for some time to be dating.

Singing up a storm: Brandon Jenner played the Malibu Chili Cook Off on Saturday

Singing up a storm: Brandon Jenner played the Malibu Chili Cook Off on Saturday

Side by side: Caitlyn was joined at the cook off by the 22-year-old trans model Sophia Hutchins, whom she has been rumored for some time to be dating

Side by side: Caitlyn was joined at the cook off by the 22-year-old trans model Sophia Hutchins, whom she has been rumored for some time to be dating

For her afternoon out in Malibu, Caitlyn took advantage of one of her last chances to wear white before Labor Day rolled around.

She slipped into an immaculate pair of skintight white slacks cut off shortly above the ankle, allowing for a full view of her towering nude stilettos.

Letting her Cindy Crawford-esque brown hair tumble freely over her shoulders, she shaded her face with a large thick-rimmed pair of sunglasses.

Caitlyn, who was also seen enjoying one of the culinary delights available at the fete, rounded off the look

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