A Roxbury woman who allegedly threatened to press charges against a lawyer who brushed her with his car unless he gave her $7,000 for breast enhancement surgery has been arraigned on extortion charges, prosecutors said.

A not-guilty plea was entered on behalf of 24-year-old Deborah Yi in South Boston District Court on one count of extortion by false claim, the Suffolk County district attorney’s office said in a statement.

The lawyer called State Police Sunday to report he had bumped Yi with his car while turning from Seaport Lane onto Congress Street, the statement said. He told police that he had stopped his car and exchanged contact information with Yi, who indicated that she was uninjured.

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An hour later, Yi allegedly called him and said she would not press criminal charges if he gave her $7,000 for the cosmetic surgery, the statement said. The lawyer told police that Yi called and texted him more than 10 times over the next 48 hours demanding payment, the statement said.

Around 4 p.m. Tuesday, the lawyer met with Yi on Liberty Wharf while wearing a recording device so that State Police could monitor the conversation. He handed her an envelope containing $3,000, and she allegedly demanded an additional $3,500 within a day or she would go to police, the statement said.

State Police arrested Yi following the meeting, and she allegedly admitted that she knew extortion was wrong, but said that she thought she could make easy money, the statement said.

Yi was released on her own recognizance, ordered to have no contact with the lawyer, and report to a probation officer once a month. She will return to court July 16.

Yi’s lawyer, Joseph Mahaney, didn’t immediately return a message seeking comment.