Cassie snickers in triumph as she flops down on top of him, continuing to lightly hit him with her pillow, steadying her perch on top of him as if she were an MMA fighter in top control.

Her grin acquires a more playful, lascivious quality. It's an expression Trunks should recognize from her past teasing.

"Now I've got you just where I want you..."

She holds his gaze for a long moment...and then bonks him again.