Britney Spears paid $12,000 for a top-secret liposuction session in a bid to get her old pre-baby body back, according to reports. The Toxic singer snuck off to Nevada over the weekend with her cousin Alli Sims for revolutionary Smartlipo treatment at the Minoli Plastic Surgery Clinic & Spa.

The 25-year-old mother-of-two spent five hours under the care of Dr. John Minoli on the same day rapper Kanye West's mother died following complications from a plastic surgery procedure.

Spears chose Minoli for the extensive treatment because, according to the National Enquirer, she was more than happy with the work he had done on her back in April, during another top-secret session.

Minoli uses lasers to break down fat during his Smartlipo sessions.

According to the National Enquirer, he charges up to $4,000 per area and claims his treatments permanently destroy fat cells and tighten the skin. His surgery leaves no scars or stitches.

And, according to pals, Spears is already asking Gimme More. One source tells the publication, "She wants her perky pre-baby boobs back."

-Britney Spears Pictures

(This news article provided by World Entertainment News Network)