Nothing like Sunday Funday with the cousins!

Jessica Simpson shared a sweet snap of her daughter Maxwell enjoying the sunshine and ice cream with her cousin, Bronx, on Sunday.

WATCH: Jessica Simpsn Smooches Hubby Eric Johnson in Sweet PDA Pic!

Maxwell, 4, flashed her perfect pearly whites while digging into her sweet treat with 8-year-old Bronx, the son of Ashlee Simpson and Fall Out Boy rocker Pete Wentz.

“Cool Cousins #BX#MAXIDREW,” Jessica, 36, captioned the pic.

On Saturday, it was mommy-daughter cuteness as Ashlee, 32, shared a selfie of her and Jagger, her 1-year-old daughter with husband Evan Ross, making duck faces while out for a drive.

“??#Saturday's!” Ashlee captioned the post.

 While the big kids seemed to be loving the weekend sun, Jagger seemed more enthralled by the snow in a video posted by Ashlee last month.

NEWS: Ashlee Simpson Shares Sweet Video of Daughter Jagger ‘Loving the Snow’

The cutie was caught on camera as she adorably got a fright while touching some snowflakes.

See more on the gorgeous toddler -- like when she dressed up as a reindeer -- below.