Five months after delivering twins Max and Emme, Jennifer Lopez is struggling to shed the last twenty pounds of the fifty she packed on during her pregnancy.

The Bronx-born entertainer, known for her stellar figure, has grown desperate to reclaim her once-curvy figure by any means necessary.

“Jen doesn’t feel good about her body. She thinks she’s lost her figure forever,” says a Star source, who also claims the star routinely complains about her “flabby tummy and thighs.”

“Jennifer thinks her thighs look terrible. She has major cellulite. She thinks her face and body look totally different than they did before she was pregnant.”

Jennifer has considered liposuction but is instead trying dangerous yo-yo diets, like sitting in a sauna for up to three hours a day, the tabloid spy claims:

“She just sweats then weight away. It works to lose a few pounds, but it’s all liquid, so the weight comes right back.”

The “Feelin So Good” singer also tried fasting:

She’ll go days without eating…or eat only oranges and Saltine crackers.