A Massachusetts state senator caught on video stuffing what prosecutors said was bribe money into her sweater and bra has pleaded guilty to corruption charges.

Dianne Wilkerson, a Boston Democrat, entered the pleas to eight counts of attempted extortion at a hearing in U.S. District Court on Thursday. She will remain free on bail until her sentencing on Sept. 20.

Federal prosecutors are recommending a sentence of no more than four years in prison. Defense attorneys will be allowed to argue for less.

Wilkerson was arrested in October 2008 and accused of taking $23,500 in bribes to help get a liquor license for a nightclub and helping an undercover agent posing as a businessman who wanted to develop state property.