A woman arrested at a D.C. hotel last year has pleaded guilty to providing illegal silicone implants to women who wanted to enlarge their buttocks.

Kimberly Smedley, 45, pleaded guilty Wednesday in federal court in Baltimore to introducing a misbranded device into interstate commerce.

The Georgia resident admitted that she administered silicone injections to women in hotel rooms in the District, Baltimore and other cities between 2003 and 2011. During that time, she was paid a total of more than $200,000 for the injections, according to her plea agreement.

Silicone is not approved for such injections by the Food and Drug Administration. Smedley also told women who received buttocks implants that the silicone was medical grade, but it actually was meant to be used for metal or plastic lubrication, as an additive for paint or in furniture or auto polishes, court documents say.

"No one should undergo medical procedures in a hotel room," U.S. Attorney for Maryland Rod Rosenstein said in a statement. Smedley "endangered her customers' lives," Rosenstein said.

Smedley stored the silicone in an unlabeled water jug and used super glue and cotton balls on the women to prevent silicone from leaking out after the injections, her plea agreement says.

Also charged in the case was Martin Freeman, a former D.C. police officer who allegedly provided security for Smedley at the hotels where she administered the implants. Freeman was paid in cash from proceeds from the injections, Smedley's plea agreement says. A plea hearing for Freeman is scheduled for April 9, court records show.

Authorities learned of the scheme after an exotic dancer in Baltimore was hospitalized for shortness of breath after receiving the implants and doctors found silicone in her lungs, a criminal complaint says. The woman reported that she received nine injections in each buttock and also got injections in her hips.

Smedley was taken into custody at the JW Marriott near 14th Street NW and Pennsylvania Avenue on Oct. 11, 2011, according to court documents. Freeman was with her at the hotel but was not charged at that time.

Smedley could face up to five years in prison and a $250,000 fine when she is sentenced on July 12.