I have been working in the forced milking department for a while. but today is a special day!! My sister, Catalina is joining me! It's her first day on the job. and they are letting me show her the ropes! I teach my sweet younger sister how to spit in this asshole's face. right down his throat while making him swallow. I teach her how to slap him in the face. then I teach Catalina how to cock tease and Edge!! We read while casually keeping this moron right on the edge of orgasm. Catalina wanted to know if doing this can cause brain damage to them. I think it can. but who cares?? Finally, when it's time for a violently forced sperm, I put my hand over the victim's mouth. and let my baby sister have the honour of yanking out the massive load!!