"The Philadelphia District Attorney's Office would like to promote [the] thought that it was greed, recklessness and malice that fueled my conduct," she wrote.
"However, I swear that my aim was noble in nature. I simply really just loved the feeling of . . . helping others feel more beautiful, wonderful and magical about themselves - just as someone once helped me."
Windslowe, who was born male and is 42 years old according to court records, also revealed that she rejected a plea offer from the D.A.'s Office to serve 15 to 30 years in prison for third-degree murder. The maximum sentence for that crime is 20 to 40 years.
Instead, she offered to plead guilty to involuntary manslaughter and to serve the maximum sentence of 2 1/2 to five years.
In a letter to D.A. Seth Williams, Windslowe wrote that by pleading guilty she would be honoring Aderotimi's memory and avoiding the need for a trial.
"Please let us amicably put this case to rest without any more negative press and media attention on our city . . . which a trial like this would bring," she wrote.
Tasha Jamerson, Williams' spokeswoman, told the Daily News via email: "Like any other defendant awaiting trial, we may have discussions about a possible guilty plea. Whether these discussions occur, and the contents of any that may occur, are not, and must not be, public."
At the time of Windslowe's 2012 arrest, Williams had called her arrogant and greedy.
"Her conduct cost one young woman her life and placed countless others in danger," he said. "The defendant put her own greed above the public's health and safety, and instead of being remorseful she bragged about prospective clients."
Windslowe's trial is scheduled for Feb. 17, 2015.
She has been locked up for more than two years, unable to pay 10 percent of her $10 million bail.
Her Black Madam music videos and interviews can be viewed on YouTube. But it was her side gig as pumping-party hostess-with-the-mostest-silicone that got her into the headlines.
"Perhaps some day there will be no need for such a barbaric, dangerous and deadly practice as the free deposit of silicone into the human body for female enhancement," Windslowe wrote to the Daily News.
In February 2011, she apparently had no such reservations. During a pumping party at a hotel near Philadelphia International Airport, Windslowe allegedly injected silicone into Aderotimi's buttocks for free, the District Attorney's Office said.
When Aderotimi complained of chest pains, Windslowe allegedly told her to drink more fluids and to call an ambulance if needed. Windslowe, who had no license or training to administer such injections, then left the party.
Aderotimi died a short time later of a pulmonary embolism caused by Windslowe's silicone traveling through her blood stream and organs, law-enforcement officials said.
Windslowe was charged with third-degree murder in July 2012 after a lengthy investigation.
By then, she was already in custody, charged four months earlier with aggravated assault for a silicone butt injection that gravely injured a 23-year-old woman in February 2012.
Her court-appointed defense lawyer, David S. Rudenstein, said it was "grotesquely inappropriate" for Windslowe to have contacted the Daily News, but believes she did so out of frustration.
He echoed her sentiments that she did not commit murder.
"The commonwealth, by filing a third-degree-murder charge, is claiming there's malice. The defense will claim that there isn't malice. That's for a jury to determine."
On Twitter: @MensahDean