Two suspects indicted last month in connection with a fatal arson at a south Forsyth home have pleaded not guilty to the charges against them.Jill Smith, 34, and Peter Delaney, 37, have been indicted on one count each of murder, felony murder and first-degree arson.They were arraigned Thursday morning before Forsyth County Superior Court Judge David L. Dickinson.Smith's husband, Michael Smith, was killed in the Oct. 22 blaze.Authorities have said Jill Smith and Delaney were having an affair. Delaney and both of the Smiths were inside the house at the time of the fire, as was Jill Smith's son.Jill Smith and Delaney have each been denied two requests for bond. During a March 3 hearing, Smith's attorney sought medical care because she is reportedly more than four months pregnant.Delaney's attorney, Rafe Banks, maintained his client's innocence Thursday."There will be no plea deal," Banks said.