She decides to tickle you

She grabbed you by your hair harshly, dragging you to the large bed. She tied your wrists to the bedposts above, straddling your waist. Her fingers subtly stroll down your chest and stomach.

“Let me know when you are ready to submit.” She says with a grin, and begins to circle her fingernails across your stomach. Slowly, at first, which eludes silent giggles from you. Then, she starts scratching your skin almost violently, and you are howling with laughter beneath her fingers. She shows down and accelerate again and again, not allowing you to get used to her patterns. Soon enough, she forces her nails down your navel and you are ready to break, panting and unable to properly inhale as your entire body is shaking and trying to squirm away from the torment of her fingernails.