Adultery My Mom & the exchange student

[Penetration]

"Mom, do you feel Sam's love?" Sam's hands reached down from his mother's hips, and one hand reached to hold his mother's tender waist. During this process, his mother's body was trembling slightly. 
　　"..." 
　　"Sam...can't..." Mom didn't reply to Sam right away. She seemed to be very tired. After a while, her mother's voice came out from her head. 
　　"Zi...", "Zi..." 
　　"...Boozi...Zhi...chirp..." 
　　"Uh-huh...uh!..." Sam didn't reply to his mother's words. He held his mother's waist tightly with both hands, and his buttocks slowly moved back. Pulling away, the dark cock as thick as an arm was revealed from behind mom's ass again. 
　　As the cock was pulled out, a sound of "stain...stain..." came from my mother's buttocks.
　　What's even stranger is that my mother actually started humming along with her. 
　　However, after Sam's cock was halfway out, the muscles of his feet were exerting force, and he smacked his butt hard on his mother's plump buttocks. 
　　"Pa!..." 
　　"Ah..." Mom's hand was originally covering her mouth, but after Sam's forceful impact, Mom's body was pushed forward by Sam. Due to inertia, Mom's tender hand also slipped away from the covering. Lips. 
　　Without the cover of my palm, a gasp came out of my mother's mouth that made me blush. 
　　"Hey, are you happy, Mom?" Sam looked at his mother's performance with satisfaction and smiled proudly. 
　　"...Um...Um..." Mom seemed to be stimulated by Sam, and covered her lips with one hand, and moved back with the other hand to pull away Sam's hand holding her waist. 
　　"Mom, this is why Sam likes you, oh...Mom, your pussy is stroking my glans again...ah...oh!" Sam opened his mouth wide, showing his gleaming white teeth, and pretended to enjoy it expression. 
　　His hands were fixed on his mother's buttocks, and he seemed to be using his cock to feel the world inside her pussy.