Tsume starts to win

Naruto tried to match her bouncing as she took him deep and hard into her. But they both growled and grabbed each other. Tsume grabbed his hair and bit his neck while he grabbed her thighs and made her spread wider. Both of their hips smacking so hard Kushina felt like she'd be deafened.

However experience was beating excitement. Slowly but surely she was adapting, twisting her hips to squeeze him better, clawing his back or biting his collar at the perfect time, growling in a way he was learning to love.

And they both knew it, but pride stopped Naruto from admitting it, and Tsume was going to break him of that pride.

He started to cum, but she just sped up, punishing the dick inside of her through every shot and long after. She had no mercy for him.