"Zoe, I thought I asked you to help me out downstairs," cried his mother, looking somewhat pissed. Jon had only a moment to consider what she was seeing: her son and daughter were fucking each other right in the middle of Zoe's room. "I know you love to fuck your brother, but you promised to help. Sex Slave or no, you made a promise."
"You don't have any problem with Zoe being my sexslave? Me fucking her whenever I want?" asked Jon, somewhat surprised.
"Of course not," said his mother quizzically. "I guess since you want to fuck her right now, that makes it OK. Zoe, I expect you to help me once you've satisfied Jon."
Jon wrapped his head around things quickly, and so before his she could leave, said to his mom: "And you're my sex slave too."
"And once you finish with your sister," said his mom, "you're coming to my room to fuck me. Understand, young man? I may be your sex slave, but I'm still your mother. I deserve as much attention from my master as your sister does." Jon's mom walked out of the room. Jon watched her leave, not believing what had just came out of his mouth. All he had wanted originally was to make her fine with him fucking his sister; now he was obligated to fuck his mother also. Not that it would be a bad thing, he thought. His mother was a major MILF.
"Don't stop now, Jon," said Zoe, squeezing his deeply embedded cock pleasurably. Jon suddenly remembered that he still had his cock inside Zoe's pussy, who was still bent over waiting to get pleasured. "Fuck Mom later, fuck me now." Jon felt his cock stiffen inside his sister's pussy and he began thrusting anew.
