Warning her I was getting close, that just made her even more determined to take my load down her throat, practically sucking my cum out of my cock, her lips providing a vacuum seal that should ensure she didn't spill a drop. I couldn't help move my hips at the same time, feeling that shiver up my spine that was my body telling me it was going to be one hell of an orgasm.
Stroking her own cock at the same time, I was polite enough to warn her when I was about to blow. I saw the smile in her eyes, but also the lust, the desire, the determination...