This family just keeps on expanding!

Caitlyn Jenner's daughter from her first marriage with Chrystie Crownover, Cassandra Marino, is allegedly pregnant with her third child.

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caitlyn jenner kids

Caitlyn's children, Burt, Brody, Cassandra and Brandon. Photo Credit: ABC)

The 35-year-old is already mother to two little girls, Isabella and Francesca and reportedly expecting her first son in October of this year.

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We're sure Caitlyn is over the moon excited for her daughter —although Cassandra admitted during an interview last year that she and her father have a "complex relationship."