"Oh fuck! Oh God! So good! So fucking good!" She's arching her back and trying to stay on her feet, with her hands still cuffed behind her. I've got one hand squeezing her ass cheeks and holding her up, the other hand finger-fucking her pussy while I continue to suck and bite her clit. Her orgasm builds with a trembling in her legs, a long low moan from her lips and a violent jerking of her hips against my face until the flood-gates open and her juices gush over my fingers and down my arm. I pull my fingers out and lap up as much of her juice as I...