"That is the most ludicrous thing," she says, laughing incredulously.
She stared at him and then laughed incredulously.
Which is why he laughed incredulously as I halted within his reach.
She looked Madouc up and down, and laughed incredulously.
When I recently told this story to my 18-year-old niece, she laughed incredulously (especially at the archaic-sounding "streetwalker").
Kathy laughed incredulously and the commander went on: "They're fools, but they're tough.
John Mulsoff considered it for a moment, tipped back his head, and laughed incredulously.
She looked at him and laughed incredulously, and then they hugged each other fiercely.
Moira laughed incredulously and stepped away from the railing, into the kitchen area.
Many of the bar-keepers laughed incredulously at the patrol man who gave the order; many others flew into a rage.