Ashlee Simpson is celebrating a major milestone in son Bronx's life: his 16th birthday. And fans can't get over just how ...

The exes welcomed their baby boy in 2008, three years before divorcing. Simpson and Wentz have since each welcomed two more ...

Ashlee Simpson—who shares son Bronx Wentz with ex-husband Pete Wentz—celebrated her eldest's 16th birthday by sharing a photo ...

Ashlee Simpson shared a sweet tribute of her super tall teen son Bronx, who she shares with Pete Wentz, in honor of his ...