I started to fuck her , while fucking i was just kissing and lay on her boobs , withing few second i feel back pain , i just got up and said “ mom i...s paining my back”Mom “ please dont call mom now , i dont get into mood”Me “ wht to do …..”I was just kneel down between her legs , she jsut stroke my cock with her hand to keep it tempered told” ok honey go on scold me as you like “Me “ you mean “Mom “ ys feel tht im your bitch , scold me with what all bad word you have “Me “ but mom….”Mom “ go on. I swirled my tongue on the underside of his shaft. Soon, so much of his penis was in my mouth I kept moving my head forward, letting the tip of my son's penis pass into my throat.I held my son's cock in the back of my throat for several seconds, even though it meant I couldn't breathe. I shook my head side to side a few times, feeling his cock move inside of me. With my tongue, I pushed his cock to the side, shoving it into my cheek. I closed my lips around it, sucking it slightly so that I was. Unfortunately Cowta and his helpers couldn't finish the saddles by time to go home. What with fitting and testing and such only five saddles were reasonably far enough along to use on the trip. No matter, winter was starting to let us know it was headed our way and there would be a lot of time on our hands while we waited it out in our caves.We made sure most everything was ready on the night before the morning of. Breakfast was a perfunctory affair at first light and then saddling, hitching,. It screamed but that was OK because they had long ago outfitted the house with sound proofing. Out of the corner of her eye Cynthia saw the other slave watching. Cynthia stopped and stared at the older thing peering from behind a corner, it tried to leave but Cynthia ordered it to stop. She ordered the little one to stay put and went to speak to other slave. She grabbed it by it's hair and dragged it to the back bedroom. Cynthia had a devious idea and after explaining to it what she wanted it.