Adultery My Mom & the exchange student

[Penetration]

At this time, Sam was not seen, only his mother was closing her eyes. Her snow-white body seemed to move closer to the edge of the bed, and her two thin white hands stretched down to tightly grasp the white towel that fell on the carpet. sheet. 
　　"Pah...pah..." Then, the familiar sound of flesh slapping came from the other side, and my mother's snow-white body swayed rhythmically with the "pah pah" sound. 
　　"Ah...ahha...Sam...no...put on a condom...ahha...put on a condom..." Mom's body kept shaking, and her two snowy breasts dropped as she leaned under the bed. After shaking for about ten times, my mother suddenly raised her head and looked to the other side. 
　　"Mom... I won't cum inside, don't worry." Sam said excitedly. 
　　"Pah...pah...pah..." 
　　"Ah...ha...no...put on a condom...put on a condom..." Mom struggled, but her body was hit faster, and her body shook even more violently. 
　　"Ah...ahha...well..." Mom weakly walked down the edge of the bed again, covering her mouth tightly with both hands, and her entire upper body was about to fall under the edge of the bed.
　　"Uh... uh... um... um... ah... ah ha..." Mom seemed to be feeling very uncomfortable, with swelling veins popping out on her forehead. She simply let go of her mouth with both hands, and tightly grasped the sheets on the edge of the bed. 
　　"Pah...pah...pah!" Perhaps because she was face down, I saw that my mother's white and tender face was rosy at the moment, as if it was filled with blood, and her long, slightly curly hair trembled with her shaking body. Trembling shaking. 
　　"Pah...pah...pah...pah! Pah!..." 
　　"Aha!" 
　　"Ah... (no sound as if suffocated)...Aha... (quivering silently)" as Sam twitched sharply. Next, my mother actually opened her mouth without saying a word, straightened her neck up and trembled her white body. After Sam stopped resisting and roared, my mother finally let out a gasp, and then kept shaking her body under the bed in silence. 
　　After about ten seconds, my mother's body was pulled back to the bed, and she was turned over as if she had exhausted all her strength. Then, all I could see was my mother's two slender hands placed on the edge of the bed. . 
　　"Ah!..." After a few seconds, my mother's gasp reached my ears again, and the two hands on the edge of the bed were tightly grasping the white sheets. 
　　"Hmm... um..." This time there was no "pop" sound, only my mother's dull and uncomfortable moaning. 
　　I straightened up numbly and sat under the door. I already understood what was happening inside. I knew that Sam was having sex with my mother. I wanted to stop it, but I didn't dare to face my overwhelmed mother. Obviously it was not my fault. But I felt scared, numbly scared.