A 21 year old guy filled with testosterone named Jack is living with his mom and dad. His mom (Isabella) is so fucking hot and if she rode him, he would cum any second, it was his dream to cum in his mom's pussy. Jack was really jealous of his dad as he is pretty fit and have really high sex drive, and he fuck his mom like he could never. Jack was not lucky with girls so he usually jerk off to his mom's bra and panties and cum in loads, completely draining his balls in his mom's innerwear assuming she fucked him. One day Isabella caught Jack jerking off to her red coloured panties, she became really upset. She at the moment kneed him in the balls by grabbing his shoulders and making a THUD! noise by perfectly shoving her knee in his son's balls. She grabbed him by the balls and said as if she ever caught him jerking off to her innerwear she would beat his balls to pulp. Isabella's painful knee was enough to tell Jack, how painful it would be for him to empty his balls on his mom's innerwear. Yet, he can't control himself and again started shooting loads of cum on his mom's clothes, making Isabella really angry over him and his attitude towards his mother. She gave him an offer, she would make him cum herself just like she make his dad do, but when he cums she would cut his dick off. Jack is just thinking of cumming in his mother, he did'nt care about the consquences. Jack agreed to his mom's offer. Isabella threw Jack on the bed and started to undress herself, she began to tease Jack intensly. She made him rock hard by just licking his dick and massaging his balls, she was making his dick rock hard. Isabella, inserted his dick between her tits and started jerking him off and when he was close to cum she denied him his pleasure. She then went on top of him and started riding Jack in cowgirl position really hard, as she was riding her son, he grabbed his balls and asked her, do you want to cum in mommy?, to which jack moaned yes mommy, are you ready to loose your balls for cumming in mommy, Jack replied definently. Isabella increased her speed and technique and she still had her grip on his balls and a cutter in one hand. And as Jack climaxed, he moaned so loud his dad heard him, and as Jack came in his mother, she chopped off his dick off his body. His half dick was still inside her pussy, and Jack came really hard and drained his balls in just one go. Isabella squeezed his balls hard enough to make then swollen. And nowdays Jack is just frustrated of his blue balls and no dick for relief.