The two of them had been working me over for a while, and suddenly I gasped, when I felt it; a sharp little warning zap racing straight down my spine, to my throbbing balls.
Gritting my teeth, I tried to hold back as Cassidy bobbed her head up and down, faster and faster, knowing she was also trying to get herself off, with her fingers sliding into her p***y.
The urge to come was just so overpowering, I finally gave up and thrust into her mouth groaning, and shot a massive load right down her throat.
I could feel my d**k pulsing as she clenched her throat around me, like a p***y trying to milk me dry. I swear I'd never anything as incredible, or as dirty as my adorable kid sister giving me the best head of my life.
Knowing how she loved to swallow, considering that she was still suckin
