Jessica Simpson is looking mighty sexy in her post pregnancy weight-loss body. The star posted this photo of her happy family celebrating Halloween and her 60-pound weight loss thanks to Weight Watchers!

The 32-year-old new mom is seen dressed in a leather and plaid corset costume, accompanied by a lace skirt and bleached-blonde pigtails. Her fiance Eric Johnson is posing with Jess of course, he in a plaid Irish/ “Braveheart” costume. Little Maxwell Drew joined in for some fun as well, celebrating his very first Halloween. The six-month-old is dressed as a cute-ilicious feathery and plump chicken.

Amazing how a year makes such a big difference. Last Halloween, Simpson dressed as a mummy to announce her pregnancy. This year, Simpson shows off her new baby and shrinking waist in a much sexier costume. We like both looks, I must say! Click here and check out Halloween costumes worn by other celebs in 2012!