Arnold Schwarzenegger's Son Seen With Smoking Hot Sisters at Malibu Chili Cook Off

Arnold Schwarzenegger's son, Joseph Baena, was all about keeping it in the family when he hit up Malibu for the annual chili competition, because he brought along his girlfriend and her equally attractive sister.

Baena was seen during Labor Day weekend attending the famed Malibu Chili Cook Off, which is basically an end of summer carnival attended by a ton of Hollywood stars.

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The 21-year-old bodybuilding son of Schwarzenegger was seen in a casual black shirt and jeans as he walked with his girlfriend and her sister.

Baena is dating Albanian-American IG model Nicky Dodaj, whom he met while attending Pepperdine University.

Dodaj brings a lot to the table, along with her degree in Business Administration and Management ... she's got a very attractive 21-year-old sister.

Amy Dodaj played third wheel with the group, and even wore a matching outfit with her sister of a white crop top and jeans.

The sisters posted a little preview of their outfits before heading to the cook-off, and even Baena appreciated the look because he left a comment with fire emojis.

The two girls look very much alike, and wrote that they can even use each other's faces to unlock their iPhones.

Maybe that's why Baena was smiling so wide while walking around the festival.

Other stars at the Malibu Chili Cook-Off included Simon Cowell, Mel Gibson, Nicole Murphy, Johnny Knoxville and Gerard Butler.

Adam Sandler was also seen later in the evening on Sunday hanging at the carnival with his family.