"Come on, Abi...I thought you wanted to see what you could do that other women couldn't do, no matter how they dreamed of it...Why are you suddenly complaining now, after I've shown your special ability?" He gave a carefree smile, even though his hand was lodged in her ass and wouldn't come out no matter how much he tried to pull it out.
But it wasn't like he was complaining and was actually enjoying the sensation of his entire hand being submerged in her mother's fat ass cheeks, which hung on her behind.
"I thought it was something else that seemed more decent...Not something as vulgar as making me shake my butt while your hand is still inside of me!" She exclaimed, while her son pushed his finger down on her innards, which sent her flying ass down like she was trying to smack her own son's face with her ass.
Whoosh~