We again lip-locked and started spreading her thighs feeling the whole skin lightly. I started moving down slowly kissed the neck and moved on to boob...s. Slowly started licking around the nipple area while fingers running around her thighs and pelvic area. I took one nipple in to my mouth started sucking gently while my fingers running around her on thighs and tummy.As I started sucking nipple little heard she took my hand took it to her pussy. Ufff. I gently rubbed around the pussy area and. I normally don’t cum from vaginal sex and John’s tongue usually gets me off before he has his turn so I was a little disappointed that he jumped straight in.I was pretty horny and it was feeling pretty good so maybe it would work this time.John was really getting into it when an older nude bloke walked out from behind the rocks and stopped in his tracks in surprise, I pushed on John telling him to stop as someone can see us and he stopped, looked around at the bloke then just kept on pounding. ”Suddenly confused, I asked, very curious, “Resisted what for so long?”“Being a slut,” she moaned, as she moved her ass back and forth trying to fuck herself with my finger.“But you fuck Miranda,” I pointed out.“Yes, but I am in charge in our relationship. She is my slut,” my Mom explained.I pulled my finger out.Mom instantly pleaded, “Curtis, please don’t stop, but it back in.”I put my sticky finger to her lips. “Shhhhhh, Mother. I think I figured this out. You were Ellie’s slut in college,. He could hear my breath as he pushed harder and this just spurred him on to slam into me balls deep. I was actually feeling his testicles hit between my butt cheeks and due to it being very wet down there it was making a sort of splashy sound. He grabbed my hips with one hand and held tight, then lifted his other hand and slapped my left breast as it was bouncing. Not a hard slap, just enough for me to feel it and to make a loud sound as it hit. Then he did the same to the other one and started.