Wiggle, wiggle, wiggle. Her motions bring you back to what you're doing and you start to finger fuck her making sure to press and rub against her gspot. As her moans caress your ears you add another finger and move your fingers faster inside and rubbing her anus with your thumb. When her pussy starts to spasm wildly and her back starts to arch you stop with your hand pressed hard against her. Slowly, you remove your hand just far enough to use your thumb and suddenly punch your fist deep into her. She screams out in surprise trying to move away. With nowhere to go and already pressed hard against the couch, her body gives up and just trembles and she whimpers.
Smirking you fist her hard and fast, shaking your head and murmuring "no" to her "Daddy, please!"s. As her pleas become desperate and her knees weaken you lean forward and wrap your other hand around her throat, squeezing gently. "I told you no, babygirl." Squeeze. "Now be a good girl and take your punishment and maybe I'll let you cum soon."
She gasps for air and shudders as you release her throat and pound her pussy furiously. Not long after her moans become mingled with cries she begins to arch her back and a river of cum courses down her legs. Too late to stop her orgasm now. Oh well, another punishment then.
"Thank you, Daddy" she breathes heavily, but you cut her off with another hard thrust of your fist and another. After making her squirt until it pools at her feet you draw your hand back to the widest, where it barely fits though her vulva. With a grin, you inch your hand out until just four fingers remain. You turn your hand out and slide in two fingers from your other hand and gently pull her pussy open. "Mmm, room for more" you think as you squeeze a third finger in and then a fourth.
You pull her open firmly, stretching her and listening to her gasps and whimpers. She's being such a good girl. You slowly fuck her with both hands, pulling her further and further open until you can see all the way to her cervix. You hold her open and stare a minute. "Good girl" you say right before you spit inside her and let go of her pussy. "You can relax now." She brings her legs together and sinks to her knees breathing heavily as you release her from the handcuffs.