Bigger isn't always better.

After losing a significant amount of weight following two back-to-back pregnancies, Jessica Simpson looks better than ever. And now, the busty blonde is looking to change her body even more — with a breast reduction!

RELATED: Jessica Simpson Flaunts Ridiculously Toned Body On Instagram

jessica simpson and eric johnson

Jessica Simpson and husband Eric Johnson in September 2012.

“She’s lost so much weight that her body’s out of proportion and she’s having back pain,” an insider reveals to OK! Magazine. "She wants to go down to a C cup."

Hey, regardless what size she is, she's still gorgeous!