Ashlee Simpson wears a winter coat as she shops for diapers at Target

Ashlee Simpson wishes son Bronx a happy 13th birthday on Instagram: 'You are the coolest teenager'

Ashlee Simpson Celebrates Her Son’s Birthday With Sweet Selfie: ‘This Is 13’

Ashlee Simpson’s Son Bronx, 13, Towers Over Mom & Looks Identical To Dad Pete Wentz In Birthday Photo