Adultery My Mom & the exchange student

[Penetration]

　After a while, Sam turned around and looked at his mother, holding a basin of something in his hand. Suddenly, Sam walked forward, and to my surprise, the object that Sam was holding firmly in his hand, which seemed to be some kind of liquid, actually poured onto the plump buttocks wrapped in my mother's black shorts.
　　Yes, Sam did it entirely on purpose. I was so angry when I saw it.
　　"Sam, you beast."
　　He cursed in his mind.
　　However, I think Sam's acting skills are the best in the world, and he actually fell to the ground.
　　"Ah~"
　　When her mother felt the liquid that Sam poured on her butt, her mother screamed and looked at Sam who fell on the ground. Her mother quickly squatted down and pulled up Sam who fell under her legs. .
　　"Sam, are you okay?"
　　Mom looked very nervous and pulled Sam up worriedly.
　　"Mom, it's okay. I'm sorry, Mom, I fell on you. Let me wipe it for you..."
　　Sam pretended to get up, looked at the liquid on his mother's shorts, and actually touched his mother's butt with his hands.
　　"Ah...that...Sam...Mom is okay...you...are you okay?"
　　Mom didn't react. Sam's hands had already touched her mother's buttocks, squeezing and wiping off the things on her buttocks.
　　"Mom, I'm sorry, it's all Sam's fault..."
　　Mom quickly stepped back and smiled again when she saw Sam's sad expression.
　　"Mom, it's okay. It's okay. Don't worry. Come and watch for a while. Mom will go change some pants."
　　How could my mother have thought at this time that all of this was directed and acted by Sam? His expression management was at the level of an actor, and he felt sad even if he said he was sad. , without even a trace of falsehood, I secretly admire this guy’s acting skills.
　　"Okay, I'm sorry, Mom."
　　Sam continued to look at his mother innocently, pretending to be uncomfortable. His mother smiled at Sam without warning. After letting go of her apron, she walked upstairs. Sam looked at his mother's leaving back and actually laughed obscenely. Finally, What disgusted me was that he actually looked at his mother's back and licked his lips.
　　"Mom...you must protect yourself..."