By Elisa Sanchez, EnStarz | May 31, 2012 02:22 PM EDT
Jessica Simpson ignored her doctor's advice to abstain from sex after the birth of her daughter.
In the latest issue of People Magazine, Simpson - who gave birth to Maxwell Drew Johnson on May 1- says that she cannot resist her fiance Eric Johnson.
"I've kind of broken one rule," she told People. "I think I have the sexiest man in the world. So that's the rule I break."
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Simpson gave birth to her daughter via C-section.
The singer and fashion designer is known to be "crazy" in bed, according to her former boyfriend John Mayer.
In 2010, Mayer told Playboy Simpson was "like crack cocaine" to him.
"Sexually it was crazy. That's all I'll say," he continues. "It was like napalm, sexual napalm."
As for Simpson's post baby weight loss, the singer announced that she is the new spokesperson for Weight Watchers.
"So excited to be a part of the WeightWatchers family," she tweeted.
Simpson has not been spotted in public since the birth of her daughter Maxwell Drew on May 1. She is to have gained almost 75 pounds during her pregnancy which was in fact ten days overdue. Her daughter weighed nearly ten pounds.
Simpson will reportedly get $4 million for the deal with the famous weight loss program.
"We're thrilled that Jessica Simpson has chosen to join Weight Watchers to adopt a healthier lifestyle and inspire others to do the same," the company said in a statement.
"There's not a goal weight – I just want to feel normal and fixate on inches," Simpson told People. "I really want to set small goals, so I'm constantly reaching goals and not looking at something so far ahead."
People Magazine published the first photo of her daughter on the issue.
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