This had the effect of opening her up completely and I could hear Terri moaning softly as my lips moved to that tender spot behind her knee. My mouth ...as well lubricated again and I was able to drag a very wet tongue back and forth across that space. Terri’s moans became more audible. I was holding her leg by the foot in one hand and her thigh with the other hand, massaging her as I licked. I moved away from the back of her knee, letting her leg relax and come down a bit as I moved to the lower. She's ready for anything now!" The words barely registered through Jill's haze of lust. Then she heard the approach of footsteps and a second voice spouted. "Oh wow, that is really something! Man, I can’t believe it; how long has this been going on?" "Uuhh -- wha...?" Stunned and dazed in the aftermath of her eager sucking, Jill managed to twist her neck around to see her younger son, Dave standing in the open doorway, feasting on the sight of her spread out on Bill’s bed. "Ohhh..." Reality. He returned carrying some things, he got back on the bed. "Ok, Mother, I have two things for you." He threw a face cloth onto the mattress. "To clean up". Then he put a check in my sight, $5,000, then threw it next to the face cloth. "This is for Paris, and please don't blow it all before you get off the plane." He, still naked, lay down next to me, "Mother, we have established two things today. First, you overspend, you get spanked. I will not dishonor my father by blowing the fortune. ? ?That's all right. That is not what I want you todo. Remember how you used your hand to make me feel good last time. Well, thistime I want you to use your mouth.? ?My mouth! I don't know.? I drew out another5 dollar bill and pointed to my cock. She looked that bill and slowly loweredher head into my lap. I felt her tongue tentatively lick the head of my cock.Then her tongue swirled around the head and she started licking the shaft. ?Verygood. Now take it in your mouth.? I feel her mouth close.