For dieters, dessert becomes a/the 'forbidden fruit'.
She was 'forbidden' by her parents to marry him.
She was 'forbidden' from marrying him.
(..) she's insanely sexually attracted to? - Doesn't that bother you? - No. - If she's happy, that's all that matters. - Oh, come on! What about all this forbidden lovers, you and me against the world stuff? That just doesn't go away. You know, Chris, it's a little late for male bonding, (..)2004 TvShow: Charmed Title: I Dream of Phoebe Season: 6 Episode 15