She was saying, “You should be doing it, not me.” But my girlfriend insisted her on doing it. She leaned towards me and pulled my boxer. I lifted ...y butt to let her do so. I was the next one to be completely naked now.Now only Rozina was in her panties and we two were completely naked. Next was Rozina’s turn she now asked me to do a striptease for both of them. I was completely naked and not that much of dancer. All I could do was take my full hard on dick near their faces and do a little bit. Sis: Wow, I didn’t think mom will make a big move.Me: What shall we do next?Sis: I know what to do.My sister sent a sex story of a mom giving an oil bath and having sex with her son via Facebook messenger. Mom saw that message. We were hoping mom would call us for an oil bath. It happened all of a sudden.Mom called us and said that she is going to give an oil bath for both of us. First, she called sis to the bathroom and gave her an oil bath. After she came out, mom called me. I came inside the. She replied in very sexy mood ,touching my cock and smilling she told me that “ji jaroor woh toh mai karane wali hoon,lekin ek wachan do ,’tum ise kisike paas bologe nahi aur han mai jaisa kahoon waise karte rahoge?” I told”ok” She told me that we will do it after completing our dinner.I was very much happy hearing this my cock became fully erect.After it she told me to become nude and be nude for the whole day.She removed my shirt ,baniyan,my trouser and then my underwear.I was now completly. I hook my foot under you ankle and pull it up while grabbing your hand, then duct tape your ankle to your wrist. Restrained I can now do the same to your other ankle and wrist. Now I bend down and rip you sundress open, buttons flying. You lie, chest heaving in the ruin of your dress, knees drawn up and spread, panties tight over your mound, watching me like a mouse watches a snake. I use the knife, slowly tracing it over your nipples, blade sliding over your teats, then down your sternum. You.