The Pieces of Me singer said:
"Jess is awesome. I think we both equally look up to each other … [She's] my big sister and I'm proud of her. And she's a great mom – and a great pregnant lady."
And on top of giving her sister mommy kudos, Ashlee also loves that her son Bronx and Jessica's daughter, Maxwell get along very well.
Sounds like these Simpsons got the family thing on lock, and we love everything about that!!
[Image via Cousart/JFXimages/WENN.]