Also on Thursday, the mom of two, 27, starred in a giggle-filled clip with sister Kendall Jenner, 29, as the bikini-clad duo ...

Aiello hinted at their engagement back in January when she posted photos of herself wearing a diamond engagement ring ...

Kris has been married twice: to lawyer Robert Kardashian between 1978 and 1991 and Olympian Caitlyn Jenner, whom she divorced from in 2015. She is the mother to Kourtney, Kim, Khloe, Rob, Kendall ...

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