Jessica Simpson showed off her impressive 100-pound weight loss with a new picture on Christmas Day.

Simpson, who turned 40 earlier this year, flaunts her tiny frame in a holiday-pj’s onesie sharing to her Instagram.

Simpson laughs in the photo, which shows her red sweatpants had fallen down to her knees.

“So I thought Eric [Johnson] was taking a photo from the waist up…,” Simpson captioned the pic.


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