別の乗り物ではなく、1つの乗り物

It was all so peaceful. The guy just wanted to give his rusty car a good wash. His mother-in-law just returned from her shopping round, and offered her help. Not suspicious at all, he welcomed her. One thing led to another, and there she is, with her clothes wet, acting sexy! The plump bitch literally sucked him into herself, and the two started humping like crazy under the warm sun. Right after his goo went in her mouth, the wife appeared in the window, got mad like hell and left in the car, now clean and shiny - forever!