The 29-year-old stepson of popular TV evangelist T.D. Jakes has been arrested on an indecent exposure charge. Dallas police say Jermaine Jakes is accused of exposing himself to undercover vice detectives last month (Jan. 3) at Keist Park. He turned himself in Thursday and was released on a $1,000 personal recognizance bond. The police affidavit says that Jakes walked up to one of the two detectives at the public park near his stepfather's church with his pants unzipped. He then began to masturbate while making eye contact with the detective, according to the document. His lawyer, Faith Johnson, told Dallas-Fort Worth television station KTVT: "We are aware of potential allegations involving Jermaine Jakes and are undertaking our own investigation of these allegations at this time." Jakes' stepfather is the megachurch pastor of the 30,000-member Potter's House in Dallas, who gave a sermon at the prayer service for Barack Obama on the morning he was sworn in as president.