Grace forces Trevor to take a lie detector test to prove his innocence .
They also face another set back when Grace wrongly presumes Trevor has slept with Porsche McQueen ( Twinnie - Lee Moore ) .
Grace forces Trevor to take a lie detector test to prove Trevor 's innocence .
They also face another set back when Grace wrongly presumes Trevor has slept with Porsche McQueen ( Twinnie - Lee Moore ) .